Georgia Weatherization Assistance Program Single Family Field Guide June 2018 Standard Work Specifications Field Guide for Single-Family Homes created by the Georgia Environmental Finance Authority Page Intentionally Left Blank GA Wx Field Guide Georgia Environmental Finance Authority 2 of 491 June 22, 2018 Summary The Georgia Weatherization Assistance Program (WAP) Single Family Field Guide was developed to align with the U.S. Department of Energy (DOE) Standard Work Specifications (SWS) for Single Family Home Energy Upgrades and to support and promote high quality work. This guide was created through a collaborative effort between Southface Energy Institute, Santa Fe Community College, and other participating DOE Weatherization Training Centers. It includes text and photo guides to assist Retrofit Installer Technicians, Crew Leaders, Energy Auditors, and Quality Control Inspectors with effectively performing the tasks required by the WAP. All sections in this Field Guide follow the requirements set forth by the SWS. All tasks and methods outlined in this Field Guide define measure installation and diagnostic testing best practices that should be followed throughout the state. Codes and Standards While the SWS and Georgia Weatherization Single Family Field Guide will help identify the desired outcomes of energy efficiency measures in a weatherization or home energy upgrade project, they are not a replacement for the codes and/or technical standards mandated by a particular jurisdiction. State, local, or municipal code or ordinance has legal precedence and users should obtain copies of the applicable codes and standards for their jurisdiction before performing the work. GA Wx Field Guide Georgia Environmental Finance Authority 3 of 491 June 22, 2018 Table of Contents 2 Health and Safety 2.01 Safe Work Practices 2.0100 Safe Work Practices 2.0100.1 Global Worker Safety 2.0100.1b Hand protection ................................................................................................................ 20 2.0100.1c Respiratory protection ...................................................................................................... 21 2.0100.1d Electrical safety ................................................................................................................ 23 2.0100.1e Carbon monoxide (CO) .................................................................................................... 24 2.0100.1f Personal Protective Equipment ........................................................................................ 25 2.0100.1g Confined space safety ...................................................................................................... 26 2.0100.1j Ergonomic safety.............................................................................................................. 28 2.0100.1m Thermal stress.................................................................................................................. 28 2.0103 Heating and Cooling Equipment 2.0103.1 Combustion Worker Safety 2.0103.1b Carbon monoxide (CO) .................................................................................................... 30 2.0103.1c Raw fuel............................................................................................................................ 30 2.0106 Material Safety 2.0106.1 Material Selection, Labeling, and Material Safety Data Sheets (MSDSs) 2.0106.1a Material selection ............................................................................................................. 33 2.0106.1b Material labels .................................................................................................................. 33 2.0106.1c Material Safety Data Sheets (MSDSs) ............................................................................. 33 2.0107 Basements and Crawl Spaces 2.0107.2 Basements and Crawl Spaces--Pre-Work Qualifications 2.0107.2a Fuel leaks ......................................................................................................................... 35 2.0107.3 Basements and Crawl Spaces--Debris Removal 2.0107.3a Debris removal ................................................................................................................. 37 2.02 Combustion Safety 2.0201 Combustion Safety General 2.0201.1 Combustion Appliance Zone (CAZ) Testing 2.0201.1a Assessment ...................................................................................................................... 38 2.0201.1b Fuel leak detection ........................................................................................................... 39 2.0201.1c Venting ............................................................................................................................. 41 2.0201.1d Base pressure test ........................................................................................................... 42 2.0201.1e Depressurization test........................................................................................................ 43 2.0201.2 Combustion Safety - Make-up Air 2.0201.2a Outside combustion make-up air...................................................................................... 46 2.0201.2b New appliances ................................................................................................................ 47 2.0201.2c CO detection and warning equipment .............................................................................. 47 2.0201.2d Gas ovens ........................................................................................................................ 48 2.0201.2e Gas range burners ........................................................................................................... 49 2.0201.2f Solid fuel burning appliances ........................................................................................... 50 GA Wx Field Guide Georgia Environmental Finance Authority 4 of 491 June 22, 2018 Table of Contents 2.0201.3 Vented Combustion Appliance Safety Testing 2.0201.3a Spillage Test..................................................................................................................... 52 2.0201.3b Carbon monoxide (CO) test in appliance vent ................................................................. 52 2.0202 Unvented Space Heaters 2.0202.1 Unvented Space Heaters: Propane, Natural Gas, and Kerosene Heaters 2.0202.1a Removal ........................................................................................................................... 55 2.0202.1b Occupant education ......................................................................................................... 55 2.0203 Vented Gas Appliances 2.0203.1 Combustion Air for Natural Draft Appliances 2.0203.1a Required combustion air .................................................................................................. 56 2.0203.1b Additional combustion air (if action is required)................................................................ 56 2.0203.1c Spillage testing ................................................................................................................. 56 2.0203.2 Combustion Flue Gas--Orphaned Water Heaters 2.0203.2a Spillage testing ................................................................................................................. 58 2.0203.2b Flue gas removal (chimney liner or approved methods) .................................................. 58 2.0203.2c Retesting spillage ............................................................................................................. 60 2.0203.4 Occupant Education 2.0203.4a Occupant health and safety.............................................................................................. 62 2.0203.4b Occupant education ......................................................................................................... 62 2.03 Safety Devices 2.0301 Combustion Safety Devices 2.0301.1 Smoke Alarm 2.0301.1a Smoke alarm (hardwired) ................................................................................................. 64 2.0301.1b Smoke alarm (battery operated)....................................................................................... 64 2.0301.2 Carbon Monoxide Alarm or Monitor 2.0301.2a CO detection and warning equipment (hardwired) ........................................................... 65 2.0301.2b CO detection and warning equipment (battery operated) ................................................ 65 2.04 Moisture 2.0403 Vapor Barriers 2.0403.1 Vented Crawl Spaces--Ground Moisture Barrier 2.0403.1b Coverage .......................................................................................................................... 66 2.0403.1c Material specification ........................................................................................................ 66 2.0403.1d Overlap seams ................................................................................................................. 67 2.0403.1e Fastening.......................................................................................................................... 68 2.0403.2 Closed Crawl Spaces--Ground Moisture Barriers 2.0403.2b Coverage .......................................................................................................................... 71 2.0403.2c Material specification ........................................................................................................ 72 2.0403.2d Overlap seams ................................................................................................................. 73 2.0403.2e Fastening.......................................................................................................................... 74 2.0403.2f Sealing seams .................................................................................................................. 75 GA Wx Field Guide Georgia Environmental Finance Authority 5 of 491 June 22, 2018 Table of Contents 2.05 Radon 2.0501 Air Sealing 2.0501.1 Radon--Air Sealing Considerations, Basements, and Crawl spaces 2.0501.1a Radon testing and mitigation ............................................................................................ 77 2.06 Electrical 2.0601 Knob and Tube Wiring 2.0601.1 Knob and Tube Wiring 2.0601.1a Knob and tube identification ............................................................................................. 78 2.0601.1b Live wire testing................................................................................................................ 78 2.0601.1c Isolation and protection .................................................................................................... 79 2.0601.1d Replacement .................................................................................................................... 81 2.07 Occupant Education and Access 2.0701 Basements and Crawl Spaces 2.0701.1 Crawl Spaces--Providing New Access 2.0701.1a Crawl Spaces - Providing New Access ............................................................................ 84 2.0701.1b Security............................................................................................................................. 84 2.0701.2 Crawl Space Information Sign 2.0701.2a Sign specifications............................................................................................................ 85 2.0701.2b Sign content ..................................................................................................................... 85 2.0701.2c Hazard warning ................................................................................................................ 87 3 Air Sealing 3.10 Attics 3.1001 Penetrations and Chases 3.1001.1 Penetrations and Chases 3.1001.1d High temperature application ........................................................................................... 89 3.1001.2 Chase Capping 3.1001.2a Pre-inspection .................................................................................................................. 91 3.1001.2b Standard chase (interior walls covered with drywall or plaster) ....................................... 92 3.1001.2c Non-standard chase (interior walls covered with wood or paneling) ................................ 93 3.1001.2d Support ............................................................................................................................. 94 3.1001.2e Joint seal .......................................................................................................................... 96 3.1001.2f Adjacent framing .............................................................................................................. 97 3.1001.3 Walls Open to Attic--Balloon Framing and Double Walls 3.1001.3b Sealing methods............................................................................................................... 99 3.1001.3c Support ........................................................................................................................... 101 3.1001.3d Joint seal ........................................................................................................................ 102 3.1001.3e Adjacent framing ............................................................................................................ 103 3.1001.10 Non-Insulation Contact (IC) Recessed Light 3.1001.10a Air barrier system ........................................................................................................... 105 3.1001.10b Enclosure top ................................................................................................................. 105 3.1001.10c Clearance ....................................................................................................................... 106 3.1001.10d Sealants and weather stripping ...................................................................................... 106 GA Wx Field Guide Georgia Environmental Finance Authority 6 of 491 June 22, 2018 Table of Contents 3.1003 Dropped Ceilings and Soffits 3.1003.1 New Ceiling Below Original--Old Ceiling Intact or Repairable 3.1003.1b Sealing methods............................................................................................................. 107 3.1003.1c Support ........................................................................................................................... 109 3.1003.1d Joint seal ........................................................................................................................ 111 3.1003.1e Adjacent framing ............................................................................................................ 112 3.1003.2 Ceiling Leaks Not Repairable--No Air Barrier Above 3.1003.2c Support ........................................................................................................................... 114 3.1003.2d Joint seal ........................................................................................................................ 115 3.1003.2e Adjacent framing ............................................................................................................ 116 3.1003.3 Above Closets and Tubs 3.1003.3b Above closets and tubs .................................................................................................. 118 3.1003.3c Support ........................................................................................................................... 120 3.1003.3d Joint seal ........................................................................................................................ 122 3.1003.3e Adjacent framing ............................................................................................................ 123 3.1003.4 Dropped Ceilings 3.1003.4c Support ........................................................................................................................... 125 3.1003.4d Joint seal ........................................................................................................................ 126 3.1003.4e Adjacent framing ............................................................................................................ 127 3.1003.6 Dropped Soffits 3.1003.6b Soffit general .................................................................................................................. 129 3.1003.6c Option 1: bring soffit inside (seal at top) ......................................................................... 130 3.1003.6d Option 2: leave soffit outside (seal at bottom or side) .................................................... 131 3.1005 Other Ceiling Materials 3.1005.1 Tongue and Groove Ceilings 3.1005.1a Pre-inspection ................................................................................................................ 134 3.1005.1b Backing........................................................................................................................... 134 3.1005.1c Sealant selection ............................................................................................................ 134 3.12 Windows and Doors 3.1201 Maintenance, Repair, and Sealing 3.1201.1 Double-Hung Wood Windows 3.1201.1a Lead paint assessment .................................................................................................. 136 3.1201.1d Replacement sills ........................................................................................................... 137 3.1201.2 Single-Unit Window and Fixed Frame with Wood Sash 3.1201.2a Lead paint assessment .................................................................................................. 140 3.1201.3 Exterior Doors 3.1201.3a Lead paint assessment .................................................................................................. 143 3.1201.3b Door operation and fit ..................................................................................................... 144 3.1201.3c Air infiltration................................................................................................................... 146 3.1201.3d Water infiltration.............................................................................................................. 147 3.1202 Repairing/Replacing Cracked and Broken Glass 3.1202.1 Fixed Frame with Wood Sash--Older House 3.1202.1a Lead paint assessment .................................................................................................. 149 3.1202.1b Broken glass removal ..................................................................................................... 150 GA Wx Field Guide Georgia Environmental Finance Authority 7 of 491 June 22, 2018 Table of Contents 3.1202.1c Sash preparation ............................................................................................................ 152 3.1202.1d New glass installation ..................................................................................................... 153 3.1202.2 Single-Unit Window, Mounted on Rough Opening--Newer House 3.1202.2a Lead paint assessment .................................................................................................. 156 3.1202.2b Broken glass removal ..................................................................................................... 157 3.1202.2c Opening preparation....................................................................................................... 159 3.1202.2d New glass installation ..................................................................................................... 160 3.1203 Replacement 3.1203.1 Replacement Window in Existing Window Frame 3.1203.1a Lead paint assessment .................................................................................................. 163 3.1203.1b Opening preparation....................................................................................................... 164 3.1203.1c Replacement window installation ................................................................................... 165 3.1203.2 Single-Unit Window, Mounted on Rough Opening--Newer House 3.1203.2a Lead paint assessment .................................................................................................. 168 3.1203.2b Opening preparation....................................................................................................... 170 3.1203.2c Replacement unit preparation ........................................................................................ 171 3.1203.2d Replacement window installation ................................................................................... 172 3.14 Basements and Crawl Spaces 3.1402 Crawl Spaces 3.1402.1 Crawl Spaces--Sealing Floor Penetrations 3.1402.1a Backing and infill ............................................................................................................ 175 3.1402.1b Sealant selection ............................................................................................................ 176 3.1402.1c High temperature application ......................................................................................... 177 3.1402.3 Closed Crawl Spaces--Air Sealing Exterior Wall 3.1402.3a Seal penetrations ........................................................................................................... 180 3.1402.3b Pest exclusion ................................................................................................................ 181 3.15 Attached Garages 3.1501 Garage Openings 3.1501.1 Penetrations, Cracks, and Doors Between Garage and House 3.1501.1a Penetrations ................................................................................................................... 183 3.1501.1b Ductwork......................................................................................................................... 183 3.1501.1c Cracks ............................................................................................................................ 185 3.1501.1d Garage to house door .................................................................................................... 186 3.1501.1e Glass .............................................................................................................................. 188 3.1501.1f Carbon monoxide (CO) alarm ........................................................................................ 190 3.1501.1g Occupant education ....................................................................................................... 190 3.16 Ducts 3.1601 Duct Preparation 3.1601.1 Preparation and Mechanical Fastening 3.1601.1a Preparation ..................................................................................................................... 192 3.1601.1b Metal to metal ................................................................................................................. 192 3.1601.1c Flex to metal ................................................................................................................... 193 3.1601.1d Duct board to duct board ................................................................................................ 193 GA Wx Field Guide Georgia Environmental Finance Authority 8 of 491 June 22, 2018 Table of Contents 3.1601.1e Flexible duct to duct board ............................................................................................. 193 3.1601.1f Metal plenum to air handler cabinet ............................................................................... 193 3.1601.1g Duct board plenum to air handler cabinet ...................................................................... 194 3.1601.1h Boot to wood .................................................................................................................. 194 3.1601.1i Boot to gypsum .............................................................................................................. 194 3.1601.1j Flex to duct board........................................................................................................... 195 3.1601.2 Duct Preparation for SPF Application 3.1601.2a Inspection ....................................................................................................................... 196 3.1601.2b Repair ............................................................................................................................. 196 3.1601.3 Support 3.1601.3a Support (applies to all duct types) .................................................................................. 198 3.1602 Duct Sealing 3.1602.1 Air Sealing Duct System 3.1602.1c Existing component to existing component .................................................................... 200 3.1602.2 Duct Spray Polyurethane Foam (SPF) Installation 3.1602.2a Installation ...................................................................................................................... 202 3.1602.3 Proprietary Spray Application 3.1602.3a Internal or external application ....................................................................................... 203 3.1602.4 Air Sealing System Components 3.1602.4a Duct boot to interior surface ........................................................................................... 204 3.1602.4b Wooden plenums and building cavities .......................................................................... 205 3.1602.4c Air handler cabinet ......................................................................................................... 207 3.1602.4d Filter slot ......................................................................................................................... 208 3.1602.5 Return--Framed Platform 3.1602.5a Preparation ..................................................................................................................... 210 3.1602.5b Infill and backing............................................................................................................. 210 3.1602.5c Sealant selection ............................................................................................................ 212 4 Insulation 4.10 Attics 4.1001 General Preparation 4.1001.1 Non-Insulation Contact (IC) Recessed Light 4.1001.1a Air barrier system ........................................................................................................... 213 4.1001.1b Enclosure top ................................................................................................................. 214 4.1001.1c Clearance ....................................................................................................................... 215 4.1001.1d Sealants and weather stripping ...................................................................................... 216 4.1001.2 Knob and Tube Wiring 4.1001.2a Identifying knob and tube wiring ..................................................................................... 218 4.1001.2b Testing to determine if live ............................................................................................. 219 4.1001.2c Isolate or replace ............................................................................................................ 219 4.1001.3 Fireplace Chimney and Combustion Flue Vents 4.1001.3a Verify attic prep .............................................................................................................. 222 4.1001.3b Required clearance ........................................................................................................ 223 4.1001.3c Safety ............................................................................................................................. 224 4.1001.3d Occupant education ....................................................................................................... 224 GA Wx Field Guide Georgia Environmental Finance Authority 9 of 491 June 22, 2018 Table of Contents 4.1001.4 Vented Eave or Soffit Baffles 4.1001.4a Installation ...................................................................................................................... 226 4.1003 Attic Ceilings 4.1003.3 Unvented Flat Roof with Existing Insulation 4.1003.3a Ventilation....................................................................................................................... 228 4.1003.3b Installation ...................................................................................................................... 229 4.1003.3c Occupant education ....................................................................................................... 230 4.1004 Knee Walls 4.1004.1 Preparation for Dense Packing 4.1004.1a Backing........................................................................................................................... 232 4.1004.1b Installation ...................................................................................................................... 234 4.1004.2 Preparation for Batt Insulation 4.1004.2a Knee wall prep for batts.................................................................................................. 236 4.1004.2b Installation ...................................................................................................................... 237 4.1004.2c Backing knee wall........................................................................................................... 238 4.1004.3 Strapping for Existing Insulation 4.1004.3a Sealing ........................................................................................................................... 241 4.1004.3b Installation ...................................................................................................................... 241 4.1004.3c Attachment ..................................................................................................................... 241 4.1004.3d Occupant education ....................................................................................................... 242 4.1004.4 Knee Wall Without Framing 4.1004.4a Sealing ........................................................................................................................... 243 4.1004.4b Flat cavity present .......................................................................................................... 243 4.1004.4c Installation ...................................................................................................................... 243 4.1004.4d Occupant education ....................................................................................................... 244 4.1005 Attic Floors 4.1005.1 Accessible Floors--Batt Installation 4.1005.1a Preparation ..................................................................................................................... 245 4.1005.1b Installation ...................................................................................................................... 246 4.1005.1c Occupant education ....................................................................................................... 247 4.1005.2 Accessible Floors--Loose Fill Installation 4.1005.2a Preparation ..................................................................................................................... 249 4.1005.2b Air barrier........................................................................................................................ 251 4.1005.2c Installation ...................................................................................................................... 252 4.1005.2d Onsite documentation .................................................................................................... 253 4.1005.3 Accessible Floors--Batt Insulation Over Existing Insulation 4.1005.3e Onsite documentation .................................................................................................... 255 4.1005.4 Accessible Floors--Loose Fill Over Existing Insulation 4.1005.4d Onsite documentation .................................................................................................... 257 4.1005.5 Enclosed Bonus Room Floor Over Unconditioned Space--Dense Pack Installation 4.1005.5a Air barrier........................................................................................................................ 259 4.1005.5b Fill floors ......................................................................................................................... 260 4.1005.5c Safety ............................................................................................................................. 262 4.1005.5d Onsite documentation .................................................................................................... 263 GA Wx Field Guide Georgia Environmental Finance Authority 10 of 491 June 22, 2018 Table of Contents 4.1005.6 Enclosed Attic Storage Platform Floor--Dense Pack Installation 4.1005.6a Fill floors ......................................................................................................................... 265 4.1005.6b Safety ............................................................................................................................. 265 4.1005.6c Onsite documentation .................................................................................................... 266 4.1005.6d Occupant education ....................................................................................................... 266 4.1006 Attic Openings 4.1006.1 Pull-Down Stairs 4.1006.1a Installation ...................................................................................................................... 267 4.1006.1b Sealing ........................................................................................................................... 268 4.1006.2 Access Doors and Hatches 4.1006.2a Installation ...................................................................................................................... 270 4.1006.2b Sealing ........................................................................................................................... 271 4.1006.2c Attachment ..................................................................................................................... 272 4.1006.3 Whole-House Fan 4.1006.3a Installation ...................................................................................................................... 275 4.1006.3b Air sealing....................................................................................................................... 275 4.1006.3c Attachment ..................................................................................................................... 275 4.1006.3d Durability......................................................................................................................... 276 4.1006.3e Occupant education ....................................................................................................... 276 4.1088 Special Considerations 4.1088.1 Attic Ventilation 4.1088.1a Air barrier and thermal boundary.................................................................................... 277 4.1088.1b Vent type ........................................................................................................................ 277 4.1088.1c Vent location................................................................................................................... 277 4.1088.1d Ventilation baffling .......................................................................................................... 278 4.1088.1e Ventilation screens ......................................................................................................... 278 4.1088.3 Skylights 4.1088.3b Installation ...................................................................................................................... 280 4.1088.3c Occupant education ....................................................................................................... 281 4.11 Walls 4.1101 Preparation 4.1101.1 Exterior Wall Dense Packing 4.1101.1a Preparation ..................................................................................................................... 284 4.1101.1b Exterior dense pack........................................................................................................ 285 4.1101.2 Exterior Wall Insulating Sheathing 4.1101.2a Wall cladding removal .................................................................................................... 286 4.1101.2b Wall cladding replacement ............................................................................................. 286 4.1102 Accessible Walls 4.1102.1 Open-Cavity Wall Insulation--General 4.1102.1a Sealing ........................................................................................................................... 287 4.1102.1b Installation ...................................................................................................................... 288 4.1102.1c Pre-drywall verification ................................................................................................... 289 4.1102.1d Onsite documentation .................................................................................................... 290 GA Wx Field Guide Georgia Environmental Finance Authority 11 of 491 June 22, 2018 Table of Contents 4.1103 Enclosed Walls 4.1103.1 Dense Pack Exterior Walls 4.1103.1a Exterior dense pack........................................................................................................ 292 4.1103.1b Onsite documentation .................................................................................................... 292 4.1103.2 Additional Exterior Wall Cavities 4.1103.2a Location of cavities ......................................................................................................... 294 4.1103.2b Sealing ........................................................................................................................... 294 4.1103.2d Quality assurance........................................................................................................... 295 4.1103.2e Close holes..................................................................................................................... 296 4.1103.3 Insulated Sheathing and Insulated Siding Installation 4.1103.3a Sealing ........................................................................................................................... 299 4.1103.3b Location of wall framing.................................................................................................. 299 4.1103.3c Installation ...................................................................................................................... 299 4.1103.3d Occupant education ....................................................................................................... 300 4.13 Floors 4.1301 Accessible Floors 4.1301.1 Standard Floor System--Batt Installation 4.1301.1a Sealing ........................................................................................................................... 301 4.1301.1b Installation ...................................................................................................................... 302 4.1301.1c Securing batts ................................................................................................................ 303 4.1301.1d Occupant education ....................................................................................................... 304 4.1301.2 Standard Floor System--Loose Fill with Netting 4.1301.2a Sealing ........................................................................................................................... 307 4.1301.2b Netting, fabric ................................................................................................................. 308 4.1301.2c Installation ...................................................................................................................... 309 4.1301.2d Occupant education ....................................................................................................... 311 4.1301.3 Standard Floor System--Loose Fill with Rigid Barrier 4.1301.3a Sealing ........................................................................................................................... 313 4.1301.3b Rigid air barrier ............................................................................................................... 314 4.1301.3c Installation ...................................................................................................................... 315 4.1301.3d Occupant education ....................................................................................................... 317 4.1301.4 Dense Pack Floor System with Rigid Barrier 4.1301.4a Sealing ........................................................................................................................... 319 4.1301.4b Rigid air barrier ............................................................................................................... 320 4.1301.4c Installation ...................................................................................................................... 321 4.1301.4d Occupant education ....................................................................................................... 323 4.1301.5 Cantilevered Floor--Batt Installation 4.1301.5a Air barrier........................................................................................................................ 325 4.1301.5b Installation ...................................................................................................................... 326 4.1301.5c Attachment ..................................................................................................................... 327 4.1301.5c Attachment ..................................................................................................................... 328 4.1301.5d Exterior soffit................................................................................................................... 329 4.1301.5e Occupant education ....................................................................................................... 330 4.1301.6 Pier Construction Subfloor Insulation--Batt Installation with Rigid Barrier 4.1301.6a Subfloor preparation ....................................................................................................... 332 GA Wx Field Guide Georgia Environmental Finance Authority 12 of 491 June 22, 2018 Table of Contents 4.1301.6b Installation ...................................................................................................................... 333 4.1301.6c Secure batts ................................................................................................................... 335 4.1301.6d Rigid air barrier ............................................................................................................... 336 4.1301.6e Occupant education ....................................................................................................... 337 4.1301.7 Pier Construction Subfloor Insulation--Loose Fill with Rigid Barrier 4.1301.7a Subfloor preparation ....................................................................................................... 339 4.1301.7b Rigid air barrier ............................................................................................................... 340 4.1301.7c Installation ...................................................................................................................... 341 4.1301.7d Occupant education ....................................................................................................... 343 4.1301.8 Pier Construction Subfloor Installation--Dense Pack with Rigid Barrier 4.1301.8a Subfloor preparation ....................................................................................................... 345 4.1301.8b Rigid air barrier ............................................................................................................... 346 4.1301.8c Installation ...................................................................................................................... 347 4.1301.8d Occupant education ....................................................................................................... 349 4.16 Ducts 4.1601 Insulating Ducts 4.1601.1 Insulating Flex Ducts 4.1601.1a Removal of existing flexible ducting ............................................................................... 351 4.1601.1b Selection of new flexible ducting .................................................................................... 351 4.1601.1c Sizing of new flex ........................................................................................................... 351 4.1601.1d Installation of flex............................................................................................................ 352 4.1601.1e Interior liner attachment.................................................................................................. 352 4.1601.1f Sealing of interior liner.................................................................................................... 352 4.1601.1g Attachment of exterior liner ............................................................................................ 352 4.1601.1h Sealing of all accessible ducts ....................................................................................... 353 4.1601.1i Insulation of all fittings .................................................................................................... 353 4.1601.1j Completeness of vapor barrier ....................................................................................... 353 4.1601.2 Insulating Metal Ducts 4.1601.2a Selection of duct insulation material ............................................................................... 355 4.1601.2b Duct sealing.................................................................................................................... 356 4.1601.2c Attachment of duct insulation ......................................................................................... 357 4.1601.2d Taping of the duct insulation .......................................................................................... 358 5 Heating and Cooling 5.30 Forced Air 5.3001 Design 5.3001.1 Load Calculation and Equipment Selection 5.3001.1a Load calculation ............................................................................................................. 359 5.3001.1b Equipment selection ....................................................................................................... 359 5.3001.1c Air filtration...................................................................................................................... 359 5.3001.2 Ductwork and Termination Design 5.3001.2a Duct design .................................................................................................................... 361 5.3001.2b Termination design ......................................................................................................... 361 5.3001.2c Air filtration...................................................................................................................... 361 GA Wx Field Guide Georgia Environmental Finance Authority 13 of 491 June 22, 2018 Table of Contents 5.3002 Site Preparation 5.3002.1 Preparation for New Equipment 5.3002.1a Access ............................................................................................................................ 363 5.3002.1b Utility disconnect ............................................................................................................ 363 5.3002.1c Refrigerant recovery ....................................................................................................... 363 5.3002.1d Equipment disconnection ............................................................................................... 364 5.3002.1e Removal ......................................................................................................................... 364 5.3003 System Assessment and Maintenance 5.3003.1 Data Plate Verification 5.3003.1a Data plate verification ..................................................................................................... 365 5.3003.3 Evaluating Air Flow 5.3003.3a Total air flow ................................................................................................................... 366 5.3003.3b External static pressure .................................................................................................. 366 5.3003.3c Pressure ......................................................................................................................... 367 5.3003.3d Filter Inspection .............................................................................................................. 367 5.3003.3e Balancing room flow: new ductwork ............................................................................... 368 5.3003.3f Supply and return temperature measurements .............................................................. 368 5.3003.3h Temperature rise: gas and oil furnaces only .................................................................. 369 5.3003.4 Evaluating Electrical Service 5.3003.4a Polarity............................................................................................................................ 370 5.3003.4b Voltage/amperage: incoming power ............................................................................... 370 5.3003.4c Voltage: contactor .......................................................................................................... 370 5.3003.4d Grounding....................................................................................................................... 371 5.3003.4e Blower amperage ........................................................................................................... 371 5.3003.4f Compressor amperage................................................................................................... 371 5.3003.4g Door switch operation..................................................................................................... 372 5.3003.4h Heat pump: emergency heat .......................................................................................... 372 5.3003.5 Refrigerant Line Inspection 5.3003.5a Insulation ........................................................................................................................ 373 5.3003.5b Ultraviolet (UV) protection of insulation .......................................................................... 373 5.3003.5c Sizing.............................................................................................................................. 373 5.3003.5d Installation quality ........................................................................................................... 374 5.3003.5e Support ........................................................................................................................... 374 5.3003.9 Heating and Cooling Controls 5.3003.9a Removal of mercury- based thermostats ....................................................................... 375 5.3003.9b Removal of existing controls .......................................................................................... 375 5.3003.9c Penetrations ................................................................................................................... 375 5.3003.9d Thermostat location ........................................................................................................ 376 5.3003.9e Blower speed.................................................................................................................. 376 5.3003.9f Thermostat selection: heat pump ................................................................................... 376 5.3003.9g Heat pump: supplementary heat .................................................................................... 377 5.3003.9h Heat pump: low ambient compressor lockout ................................................................ 377 5.3003.9i Heat pump: outside temperature sensor ........................................................................ 377 5.3003.9j Heat pump: supplementary heat wiring .......................................................................... 378 5.3003.9k Thermostat: installer programming................................................................................. 378 GA Wx Field Guide Georgia Environmental Finance Authority 14 of 491 June 22, 2018 Table of Contents 5.3003.9l Time delay settings ........................................................................................................ 378 5.3003.9m Humidistat: location ........................................................................................................ 379 5.3003.9n Occupant education ....................................................................................................... 379 5.3003.10 Condensate Drainage of Heating and Air Conditioning Equipment 5.3003.10a Connection ..................................................................................................................... 380 5.3003.10b Insulation ........................................................................................................................ 381 5.3003.10c Overflow protection: upflow ............................................................................................ 381 5.3003.10d Pumps ............................................................................................................................ 382 5.3003.10g Float switch..................................................................................................................... 383 5.3003.14 Combustion Analysis of Gas-Fired Appliances (LP and Natural Gas) 5.3003.14a Gas Pressure.................................................................................................................. 385 5.3003.14b Place appliance in operation .......................................................................................... 385 5.3003.14c Carbon dioxide (CO2)and oxygen (O2).......................................................................... 386 5.3003.14d Carbon monoxide (CO) in flue gas ................................................................................. 386 5.3003.14e Testing/inspection holes ................................................................................................. 386 6 Ventilation 6.60 Exhaust 6.6002 Components 6.6002.1 Ducts 6.6002.1a Duct design and configuration ........................................................................................ 388 6.6002.1b Duct insulation ................................................................................................................ 388 6.6002.1c Duct support ................................................................................................................... 390 6.6002.1d Duct connections ............................................................................................................ 392 6.6002.1e Duct materials................................................................................................................. 393 6.6002.2 Terminations 6.6002.2a Hole in building shell ...................................................................................................... 396 6.6002.2b Termination fitting ........................................................................................................... 397 6.6002.2c Duct to termination connection ....................................................................................... 398 6.6002.2d Weatherproof installation................................................................................................ 400 6.6002.2e Pest exclusion ................................................................................................................ 401 6.6002.2f Termination location ....................................................................................................... 402 6.6002.2g Kitchen exhaust .............................................................................................................. 403 6.6002.3 Exhaust-Only Ventilation--Fan Intake Grille Location 6.6002.3a Primary whole house ventilation..................................................................................... 405 6.6002.3b Local ventilation.............................................................................................................. 405 6.6003 Fans 6.6003.1 Surface-Mounted Ducted 6.6003.1a Hole through interior surface .......................................................................................... 406 6.6003.1b Wiring ............................................................................................................................. 406 6.6003.1c Fan mounting ................................................................................................................. 406 6.6003.1d Backdraft damper ........................................................................................................... 407 6.6003.1e Duct to fan connection.................................................................................................... 407 6.6003.1f Fan housing seal ............................................................................................................ 408 6.6003.1g Fan to interior surface seal ............................................................................................. 408 GA Wx Field Guide Georgia Environmental Finance Authority 15 of 491 June 22, 2018 Table of Contents 6.6003.1h Air flow............................................................................................................................ 408 6.6003.1i Preventing air leakage caused by exhaust fans ............................................................. 409 6.6003.1j Combustion safety.......................................................................................................... 409 6.6003.2 Inline 6.6003.2a Wiring ............................................................................................................................. 410 6.6003.2b Access ............................................................................................................................ 410 6.6003.2c Fan mounting ................................................................................................................. 410 6.6003.2d Backdraft damper ........................................................................................................... 411 6.6003.2e Duct connections ............................................................................................................ 411 6.6003.2f Boot to interior surface seal............................................................................................ 412 6.6003.2g Air flow............................................................................................................................ 412 6.6003.2h Preventing air leakage caused by exhaust fans ............................................................. 412 6.6003.2i Combustion safety.......................................................................................................... 413 6.6003.3 Through the Wall 6.6003.3a Hole in building shell ...................................................................................................... 414 6.6003.3a Hole in building shell ...................................................................................................... 414 6.6003.3b Wiring ............................................................................................................................. 416 6.6003.3c Fan mounting ................................................................................................................. 417 6.6003.3d Weatherproof installation................................................................................................ 418 6.6003.3e Backdraft damper ........................................................................................................... 419 6.6003.3f Fan housing seal ............................................................................................................ 420 6.6003.3g Fan to interior surface seal ............................................................................................. 421 6.6003.3i Air flow............................................................................................................................ 421 6.6003.3j Preventing air leakage caused by exhaust fans ............................................................. 422 6.6003.3k Combustion safety.......................................................................................................... 423 6.6005 Appliance Exhaust Vents 6.6005.1 Clothes Dryer 6.6005.1a Clothes dryer ducting ..................................................................................................... 426 6.6005.1b Termination fitting ........................................................................................................... 428 6.6005.1c Make-up air..................................................................................................................... 429 6.6005.1d Combustion safety.......................................................................................................... 430 6.6005.1e Occupant education ....................................................................................................... 432 6.6005.2 Kitchen Range 6.6005.2b Fan venting..................................................................................................................... 434 6.6005.2c Fan ducting..................................................................................................................... 434 6.6005.2d Termination fitting ........................................................................................................... 436 6.6005.2e Make-up air..................................................................................................................... 437 6.6005.2f Combustion safety.......................................................................................................... 438 6.61 Supply 6.6102 Components 6.6102.1 Outside Air Ventilation Supply Ducts 6.6102.1a Duct design and configuration ........................................................................................ 441 6.6102.1b Duct insulation ................................................................................................................ 441 6.6102.1c Duct support ................................................................................................................... 441 6.6102.1d Duct connections ............................................................................................................ 442 GA Wx Field Guide Georgia Environmental Finance Authority 16 of 491 June 22, 2018 Table of Contents 6.6102.1e Duct materials................................................................................................................. 443 6.6102.1f Outdoor air intake location ............................................................................................. 443 6.6102.2 Intakes 6.6102.2a Hole in building shell ...................................................................................................... 445 6.6102.2b Intake fitting .................................................................................................................... 445 6.6102.2c Occupant education ....................................................................................................... 445 6.6102.2d Damper (if applicable) .................................................................................................... 446 6.6102.2e Connection to intake fitting ............................................................................................. 446 6.6102.2f Weatherproofing ............................................................................................................. 447 6.6102.2g Pest exclusion ................................................................................................................ 447 6.6102.2h Intake location ................................................................................................................ 448 6.6102.3 Intake for Ventilation Air to Forced Air System Used for Heating or Cooling 6.6102.3a Forced air system requirements ..................................................................................... 449 6.6102.3b Wiring ............................................................................................................................. 449 6.6102.3c Access ............................................................................................................................ 449 6.6102.3d Mounting intake duct ...................................................................................................... 450 6.6102.3e Motorized damper .......................................................................................................... 450 6.6102.3f Intake filter ...................................................................................................................... 451 6.6102.3g Occupant education ....................................................................................................... 451 6.6103 Fans 6.6103.1 Inline or Multi-Port 6.6103.1a Wiring ............................................................................................................................. 452 6.6103.1b Access ............................................................................................................................ 452 6.6103.1c Fan mounting ................................................................................................................. 452 6.6103.1d Damper (required for intermittent operation) .................................................................. 453 6.6103.1e Duct connections ............................................................................................................ 453 6.6103.1f Filter................................................................................................................................ 454 6.6103.1g Occupant education ....................................................................................................... 454 6.6103.1h Boot to interior surface seal............................................................................................ 455 6.62 Whole Building Ventilation 6.6201 Air Flow Requirements 6.6201.2 Primary Ventilation Air Flow between Rooms 6.6201.2a Balancing pressure......................................................................................................... 456 6.6202 Components 6.6202.1 Controls 6.6202.1a Primary ventilation fan (whole-house volume) ............................................................... 458 6.6202.1b Local exhaust--local fan ................................................................................................ 458 6.6202.1c Wiring ............................................................................................................................. 459 6.6202.1d Manual override.............................................................................................................. 459 6.6202.1e Occupant education ....................................................................................................... 459 6.6202.2 Heat Recovery Ventilator (HRV) and Energy Recovery Ventilator (ERV) Installation 6.6202.2a Wiring ............................................................................................................................. 461 6.6202.2b Access ............................................................................................................................ 461 6.6202.2c Fan mounting ................................................................................................................. 461 GA Wx Field Guide Georgia Environmental Finance Authority 17 of 491 June 22, 2018 Table of Contents 6.6202.2d Backdraft dampers (required for intermittent operation)................................................. 462 6.6202.2e Installation of fittings ....................................................................................................... 462 6.6202.2f Duct connections ............................................................................................................ 463 6.6202.2g Duct layout ..................................................................................................................... 464 6.6202.2h Insulation ........................................................................................................................ 464 6.6202.2i Sealant selection ............................................................................................................ 465 6.6202.2j Balance and flow ............................................................................................................ 465 6.6202.2k Occupant education ....................................................................................................... 465 6.99 Additional Resources 6.9901 Codes and Standards Resources 6.9901.1 Supplemental Ventilation Information--ASHRAE 62.2 6.9901.1a Ventilation fan flow rate .................................................................................................. 467 7 Baseload 7.80 Plug Load 7.8001 Refrigerators/Freezers 7.8001.1 Refrigerator and Freezer Replacement 7.8001.1a Selection......................................................................................................................... 468 7.8001.1b Installation ...................................................................................................................... 468 7.8001.1c Decommissioning ........................................................................................................... 469 7.8001.2 Cleaning and Tuning Existing Refrigerators and Freezers 7.8001.2a Clean and tune ............................................................................................................... 470 7.81 Water Heating 7.8101 Water Use Reduction 7.8101.1 Shower Head and Faucet Aerator 7.8101.1a Work assessment ........................................................................................................... 471 7.8101.1b Selection......................................................................................................................... 471 7.8101.1c Installation ...................................................................................................................... 471 7.8101.1d Decommissioning ........................................................................................................... 472 7.8102 Installation and Replacement 7.8102.1 Water Heater Selection 7.8102.1a Selection parameters ..................................................................................................... 474 7.8102.1b Product selection ............................................................................................................ 475 7.8102.2 Storage-Type Appliance 7.8102.2e Expansion tank ............................................................................................................... 476 7.8102.2f Temperature and pressure relief valve........................................................................... 476 7.8102.2k Discharge temperature ................................................................................................... 478 7.8102.3 On-Demand Appliance 7.8102.3a Hazardous material removal .......................................................................................... 480 7.8102.3b Equipment removal ........................................................................................................ 480 7.8102.3c New equipment installation ............................................................................................ 481 7.8102.3d Emergency drain pan ..................................................................................................... 481 7.8102.3e Temperature and pressure relief valve........................................................................... 482 GA Wx Field Guide Georgia Environmental Finance Authority 18 of 491 June 22, 2018 Table of Contents 7.8102.3f Dielectric unions ............................................................................................................. 482 7.8102.3g Backflow prevention and pressure regulator .................................................................. 482 7.8102.3h Thermal efficiency .......................................................................................................... 483 7.8102.3i Required combustion air ................................................................................................ 483 7.8102.3j Venting of flue gases ...................................................................................................... 483 7.8102.3k Flue gas testing .............................................................................................................. 484 7.8102.3l Electric and fossil fuel supply ......................................................................................... 484 7.8102.3m Cold water supply ........................................................................................................... 485 7.8102.3n Discharge temperature ................................................................................................... 485 7.8102.3o Commissioning of system............................................................................................... 485 7.8102.3p Ambient carbon monoxide (CO) ..................................................................................... 486 7.8102.3q Occupant education ....................................................................................................... 486 7.8103 Maintenance/Inspection 7.8103.1 Storage-Type Appliance 7.8103.1a Health and safety ........................................................................................................... 488 7.8103.1c Thermal efficiency .......................................................................................................... 489 7.8103.1e Temperature and pressure relief valve........................................................................... 490 GA Wx Field Guide Georgia Environmental Finance Authority 19 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1 - Global Worker Safety Desired Outcome: Work completed safely without injury or hazardous exposure Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 2.0100.1b - Hand protection Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): Durable and wrist-protecting gloves will be worn that can withstand work activity Objective(s): Minimize skin contact with contaminants Protect hands from hazards Unsafe Recognize potential risks Safe Wear appropriate hand protection GA Wx Field Guide Georgia Environmental Finance Authority 20 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1c - Respiratory protection GOOD: Wear nitrile gloves when handling mastic Inspect gloves for holes and damage to minimize risk 2.0100.1c - Respiratory protection Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): If the risk of airborne contaminants cannot be prevented, proper respiratory protection will be provided and worn (e.g., N-95 or equivalent face mask) When applying low pressure 2-component spray polyurethane foam, air purifying masks with an organic vapor cartridge and P-100 particulate filter will be used When applying high-pressure SPF insulation, supplied air respirators (SARs) will be used Consult MSDS for respiratory protection requirements OSHA 1910.134 shall be followed for the implementation of a respiratory protection program Objective(s): Minimize exposure to airborne contaminants (e.g., insulation materials, mold spores, feces, bacteria, chemicals) GA Wx Field Guide Georgia Environmental Finance Authority 21 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1c - Respiratory protection Unsafe Workers need to properly protect their airways when retrofitting Best Practice Retrofits can have multiple different respiratory protection requirements OSHA regulations defined in 29 CFR 1910.134(f) require organizations requiring respirator use to 1) establish a written respirator program, 2) train all personnel in the proper use and care of their respirators, 3) have personnel medically evaluated for their fitness to wear respirators, and 4) perform annual qualitative and quantitative fit testing on each individual with their assigned respirator Whenever airborne contaminants are For two-component spray insulation, All P-100s should be fitted to the a possibility, wear an N-95 mask P-100 respirators should be used individual worker When working with high pressure spray foam, use a Supplied Air When unsure what level of protection is necessary, check the SDS GA Wx Field Guide Georgia Environmental Finance Authority 22 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices Respirator 2.0100.1d - Electrical safety 2.0100.1d - Electrical safety Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): An electrical safety assessment will be performed All electric tools will be protected by ground-fault circuit interrupters (GFCI) Three-wire type extension cords will be used with portable electric tools Worn or frayed electrical cords will not be used Water sources (e.g., condensate pans) and electrical sources will be kept separate Metal ladders will be avoided Special precautions will be taken if knob and tube wiring is present Aluminum foil products will be kept away from live wires For arc flash hazards, NFPA 70E will be consulted Objective(s): Avoid electrical shock and arc flash hazards GA Wx Field Guide Georgia Environmental Finance Authority 23 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1e - Carbon monoxide (CO) Unsafe Inspect house for unsafe electrical situations Attics and crawl spaces should be inspected closely for electrical safety before work begins Use GFCIs and three-wire extension Electrical wiring should not be located Use fiberglass ladders in place of cords for all power tools near a water source metal Recognize if knob and tube wiring is Follow NFPA 70E 2012 guidelines for present and take special precautions arc flash hazards 2.0100.1e - Carbon monoxide (CO) Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 24 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1f - Personal Protective Equipment Work completed safely without injury or hazardous exposure Specification(s): All homes will have a carbon monoxide alarm Ambient CO will be monitored during combustion testing and testing will be discontinued if ambient CO level inside the home or work space exceeds 35 parts per million (ppm) Objective(s): Protect worker and occupant health Unsafe STOP WORK if CO levels are higher than 35ppm!! Tools: 1. CO meter Best Practice Install carbon monoxide alarms 2.0100.1f - Personal Protective Equipment Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): MSDS and OSHA regulations will be consulted for equipment and protective clothing would be worn if contaminants are present(e.g., insulation materials) Eye protection will always be worn (e.g., safety glasses, goggles if not using full-face respirator) Objective(s): Protect worker from skin contact with contaminants GA Wx Field Guide Georgia Environmental Finance Authority 25 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices Minimize spread of contaminants Provide eye protection 2.0100.1g - Confined space safety Before Workers should be aware of work required and dress appropriately After Ensure workers have proper protective equipment for work environment 2.0100.1g - Confined space safety Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): Spaces with limited ingress and egress and restricted work area will be considered confined space Access and egress points will be located before beginning work Inspection will be conducted for hazards, such as damaged or exposed electrical conductors, mold, sewage effluent, friable asbestos or fiberglass, pests, and other potential hazards Adequate ventilation will be provided Use of toxic material will be reduced Objective(s): Prevent build-up of toxic or flammable contaminants Reduce risk to the workers in the confined space Provide adequate access and egress points Prevent electrical shock GA Wx Field Guide Georgia Environmental Finance Authority 26 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1g - Confined space safety After Locate all access and egress points of confined spaces before entering From OSHA.gov: "Many workplaces contain areas that are considered "confined spaces" because while they are not necessarily designed for people, they are large enough for workers to enter and perform certain jobs. A confined space also has limited or restricted means for entry or exit and is not designed for continuous occupancy." https://www.osha.gov/SLTC/confinedspaces/index.html Perform visual inspection of confined Check for frayed or worn electrical spaces before beginning work wires In confined spaces, use a ventilator Check GHS labels and Safety Data GA Wx Field Guide Georgia Environmental Finance Authority 27 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices Sheets for all materials to minimize hazards 2.0100.1j - Ergonomic safety 2.0100.1j - Ergonomic safety Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): Appropriate PPE will be used (e.g., knee pads, bump caps, additional padding) Proper equipment will be used for work Proper lifting techniques will be used Objective(s): Prevent injuries from awkward postures, repetitive motions, and improper lifting Unsafe Workers will take precautions to protect themselves on the job site Best Practice Hard hats, knee pads, bump caps, and team lifts help to prevent injury Visit https://www.osha.gov/SLTC/ergonomics/controlhazards.html for additional guidance. 2.0100.1m - Thermal stress Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 28 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Safe Work Practices 2.0100.1m - Thermal stress Ensure staff is aware of risks during extreme weather including the symptoms of heat stroke, heat exhaustion, and hypothermia Appropriate ventilation, hydration, rest breaks, and cooling equipment will be provided 911 will be dialed when necessary Objective(s): Prevent heat stroke, heat stress, and cold stress related injuries Attics and crawl spaces can be dangerous work places in the heat Keep workers comfortable with hydration and cool vests GA Wx Field Guide Georgia Environmental Finance Authority 29 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Heating and Cooling Equipment 2.0103.1 - Combustion Worker Safety Desired Outcome: Work completed safely without injury or hazardous exposure 2.0103.1b - Carbon monoxide (CO) Desired Outcome: Work completed safely without injury or hazardous exposure Specification(s): Ambient CO will be monitored during combustion testing and testing will be discontinued if ambient CO level inside the home or work space exceeds 35 parts per million (ppm) Objective(s): Protect worker and occupant health Before STOP WORK if CO levels measure above 35ppm!! Tools: 1. CO meter After Install carbon monoxide alarm if none are found. 2.0103.1c - Raw fuel Desired Outcome: Work completed safely without injury or hazardous exposure GA Wx Field Guide Georgia Environmental Finance Authority 30 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Heating and Cooling Equipment 2.0103.1c - Raw fuel Specification(s): Raw fuel leaks will be monitored for before entering building spaces If leaks are found, testing will be discontinued and condition reported to occupant immediately Objective(s): Protect worker and occupant health Before Fuel leaks need to be repaired by appropriate professional After Notify occupant of any leaks Tools: 1. Combustible gas detector 2. Spray bottle Materials: 1. Noncorrosive leak detection fluid Paraphrased from 2012 IRC G2417: Leakage will be located using an approved combustible gas detector, a noncorrosive leak detection fluid or an equivalent nonflammable solution. Matches, candles, open flames or other methods that could provide a source of ignition cannot be used. Where leakage or other defects are located, the affected portion of the piping system will be repaired or replaced and retested. 1 Check all raw fuel lines for leaks 2 Use multiple methods to test for 3 If bubbles develop, leak is present. GA Wx Field Guide Georgia Environmental Finance Authority 31 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Heating and Cooling Equipment 2.0103.1c - Raw fuel leakage--bubble solution Notify occupant 4 5 Any leaks found should be reported to Any leaks found should be reported to occupant and work stopped occupant and work stopped GA Wx Field Guide Georgia Environmental Finance Authority 32 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Material Safety 2.0106.1 - Material Selection, Labeling, and Material Safety Data Sheets (MSDSs) Desired Outcome: Occupant and worker risk from hazardous materials minimized 2.0106.1a - Material selection Desired Outcome: Occupant and worker risk from hazardous materials minimized Specification(s): Materials that do not create long-term health risks for occupants and workers will be used Objective(s): Improve indoor air quality in the living space 2.0106.1b - Material labels Desired Outcome: Occupant and worker risk from hazardous materials minimized Specification(s): Manufacturer specifications will be followed Objective(s): Reduce risk of exposure to harmful substances Follow safety procedures 2.0106.1c - Material Safety Data Sheets (MSDSs) Desired Outcome: Occupant and worker risk from hazardous materials minimized Specification(s): MSDSs will be provided onsite and available during all work GA Wx Field Guide Georgia Environmental Finance Authority 33 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Material Safety Objective(s): Assess exposure risk Prepare a response in case of emergency 2.0106.1c - Material Safety Data Sheets (MSDSs) GA Wx Field Guide Georgia Environmental Finance Authority 34 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Basements and Crawl Spaces 2.0107.2 - Basements and Crawl Spaces--Pre-Work Qualifications Desired Outcome: Site properly prepared for upgrade 2.0107.2a - Fuel leaks Desired Outcome: Site properly prepared for upgrade Specification(s): Fuel leaks will be repaired and inspected in accordance with the IRC Objective(s): Ensure site is safe and ready for upgrade Unsafe Fuel leaks need to be repaired Safe Repairs need to be tested and verified to no longer leak Tools: 1. Combustion gas detector 2. Testing solution Paraphrased from 2012 IRC G2417: Leakage will be located using an approved combustible gas detector, a noncorrosive leak detection fluid or an equivalent nonflammable solution. Matches, candles, open flames or other methods that could provide a source of ignition cannot be used. Where leakage or other defects are located, the affected portion of the piping system will be repaired or replaced and retested. GA Wx Field Guide Georgia Environmental Finance Authority 35 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Basements and Crawl Spaces 2.0107.2a - Fuel leaks 1 Fuel leaks discovered during initial audit should be flagged 2 3 Use approved combustion gas sniffer Repeatedly test repair site for leakage to see if repaired line still leaks over a 10min period 4 Allow testing solution to sit on newly repaired pipe joint for 10min 5 Confirm repair and remove flag GA Wx Field Guide Georgia Environmental Finance Authority 36 of 491 June 22, 2018 Health and Safety > Safe Work Practices > Basements and Crawl Spaces 2.0107.3 - Basements and Crawl Spaces--Debris Removal Desired Outcome: Clean, safe, and easily accessible crawl space created 2.0107.3a - Debris removal Desired Outcome: Clean, safe, and easily accessible crawl space created Specification(s): Under-floor grade will be removed of all vegetation and organic material Debris that can cause injury or puncture ground covers (e.g., nails, glass, sheet metal screws, etc.) will be removed from the crawl space Objective(s): Minimize punctures in ground liner Minimize habitat for pests (Integrated Pest Management--IPM) and contaminant sources Before Crawl spaces with trash and overgrowth need to be made clean and safe. Tools: 1. Rake 2. Shop vacuum 3. PPE After Rake up and clear away trash and overgrowth. GA Wx Field Guide Georgia Environmental Finance Authority 37 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1 - Combustion Appliance Zone (CAZ) Testing Desired Outcome: Accurate information about appliance safe operation is gathered 2.0201.1a - Assessment Desired Outcome: Accurate information about appliance safe operation is gathered Specification(s): Emergency problems (e.g., ambient gas levels greater than 10% Lower Explosion Limit (LEL), ambient CO levels that exceed 70 ppm) will be communicated clearly and immediately to the customer, the home shall be evacuated, and appropriate personnel (e.g.: HVAC technician, utility, emergency services) shall be contacted. ; Significant problems (e.g., gas leak less than 10% LEL, ambient CO levels that exceed 35 ppm but less than 70 ppm) will be communicated clearly and immediately to the customer and appropriate solutions will be suggested Examine appliance for signs of damage, misuse, improper repairs, and lack of maintenance Objective(s): Ensure system does not have potentially fatal problems Before Unsafe combustion appliances indicate need for repair or replacement After In cases of replacement, ensure new appliance is safe and sized properly Follow this process for all homes with combustion appliances: GA Wx Field Guide Georgia Environmental Finance Authority 38 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1b - Fuel leak detection If the gas supplier has shut off and locked the gas valve at the meter or the propane storage tank is empty, and the client states they are not and will not be using the appliance(s), then the client will need to remove the appliance(s) or disable them by disconnecting and capping off the gas line. Since no combustion safety testing was performed, there will be no liability issue if the client later restores fuel to the appliance(s). If the client refuses to have the system disabled, defer the home. If it appears that the client intends to restore the fuel supply and return the combustion appliance(s) to service, defer the home until combustion safety testing can be performed on them. Document everything in writing and obtain a client signature to acknowledge the conditions. Assess existing combustion appliances for damage and replace when necessary When a simple filter cleaning or Ensure there is adequate make-up air replacement will help, make it happen -- combustion air inlet in closet Stop the misuse of combustion Keep occupant apprised of any health appliances -- camp heater in bedroom or safety concerns 2.0201.1b - Fuel leak detection Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 39 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1b - Fuel leak detection Accurate information about appliance safe operation is gathered Specification(s): Inspect and test for gas or oil leakage at connections of natural gas, propane piping, or oil systems If leaks are found, immediate action will be taken to notify occupant to help ensure leaks are repaired The report will specify repair for leaks and replacement for hazardous or damaged gas or oil connectors and pipes Objective(s): Detect fuel gas leaks Determine and report need for repair Before Fuel lines should be inspected for leakage After If leaks are found, notify occupant immediately to facilitate repair Tools: 1. Combustible gas detector 2. Spray bottle Materials: 1. Noncorrosive leak detection fluid Paraphrased from 2012 IRC G2417: Leakage will be located using an approved combustible gas detector, a noncorrosive leak detection fluid or an equivalent nonflammable solution. Matches, candles, open flames or other methods that could provide a source of ignition cannot be used. Where leakage or other defects are located, the affected portion of the piping system will be repaired or replaced and retested. GA Wx Field Guide Georgia Environmental Finance Authority 40 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1c - Venting Inspect exterior gas and oil lines for leaks and damage Inspect flex lines for damage, and check date on ring for pre-1973 hardware 2.0201.1c - Venting Desired Outcome: Accurate information about appliance safe operation is gathered Specification(s): For oil systems that require a draft regulator, the presence and operability of it (that draft regulator) will be verified and tested Combustion venting systems will be inspected for damage, leaks, disconnections, inadequate slope, and other safety hazards Objective(s): Determine if a regulator is present and working Determine whether vent system is in good condition and installed properly GA Wx Field Guide Georgia Environmental Finance Authority 41 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1d - Base pressure test Unsafe If ventilation system puts occupants at risk, it needs immediate attention Safe Properly vented appliances make a house healthier and more efficient Determine if a draft regulator is installed and working Inspect vent systems for damage Inspect vent systems for disconnected pipes Inspect vent systems for inadequate slope Inspect for missing draft diverter 2.0201.1d - Base pressure test Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 42 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1e - Depressurization test Accurate information about appliance safe operation is gathered Specification(s): Baseline pressure for naturally drafting vented appliances will be measured in Combustion Appliance Zone with reference to outdoors Objective(s): Measure pressure difference between combustion zone and the outside under natural conditions Best Practice Natural conditions: Winter set-up, air handler and exhaust fans off, interior doors open Tools: 1. Manometer 2.0201.1e - Depressurization test Desired Outcome: Accurate information about appliance safe operation is gathered Specification(s): CAZ depressurization testing will be administered for all atmospherically vented appliances located inside the pressure boundary. Depressurization test will include exhaust fans, interior door closure, or duct leakage, or a combination thereof; the test will be done to determine the largest negative pressure per BPI Standard 1200. Objective(s): Determine worst-case depressurization in combustion zone due mechanical system fans GA Wx Field Guide Georgia Environmental Finance Authority 43 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1e - Depressurization test Best Practice Exhaust fans on, Check interior doors, Air handler on? Tools: 1. Manometer 1 Place manometer reference hose to exterior of house 2 Attach test hose to be used in the interior of the house 3 Place test hose by combustion appliance 4 Take baseline reading 5 Turn on interior exhaust fans, including any clothes dryers 6 Is the air handler on? GA Wx Field Guide Georgia Environmental Finance Authority 44 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.1e - Depressurization test 7 Check interior doors for pressure differential either using smoke pencil or hand 8 Manometer reading should not be more negative than -3pa 9 If reading is within allowable limit, all is well GA Wx Field Guide Georgia Environmental Finance Authority 45 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2 - Combustion Safety - Make-up Air Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 2.0201.2a - Outside combustion make-up air Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): Where applicable, combustion air will be provided from the outside and installed in accordance with the IRC for the type of appliance installed Objective(s): Prevent combustion byproducts from entering the house Image 1: For homes with one permanent opening, see 2012 IRC: G2407.6.2 (304.6.2): a minimum free area of 1 in2 per 3,000 Btu/h (734 mm2/kW) of total input rating of all appliances Image 2: For homes with two permanent vertical duct openings, see 2012 IRC G2407.6.1 (304.6.1): a minimum free area of 1 in2 per 4,000 Btu/h (550 mm2/kW) of total input rating of all appliances Image 3: For homes with two permanent horizontal duct openings, see 2012 IRC G2407.6.1 (304.6.1): a minimum free area of 1 in2 per 2,000 Btu/h (1,100 mm2/kW) of total input rating of all appliances 1 2 3 min free area of 1 sqin per 3,000 Btu/h min free area of 1 sqin per 4,000 Btu/ min free area of 1 sqin per 2,000 Btu/h GA Wx Field Guide Georgia Environmental Finance Authority 46 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2b - New appliances (734 mm2/kW) of total input rating h (550 mm2/kW) of total input rating (1100 mm2/kW) of total input rating 2.0201.2b - New appliances Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): If replacing appliances, a sealed-combustion, direct-vent appliance will be installed if possible. New appliances will be installed in accordance with manufacturer specifications, the IRC and additional applicable codes Objective(s): Prevent combustion byproducts from entering the house Before Damaged combustion appliances beyond repair should be replaced After Sealed-combustion, direct-vent appliances should replace unsafe appliances Two-pipe 90% efficiency furnaces are viable replacement Direct vent combustion appliances are also viable appliances replacements GA Wx Field Guide Georgia Environmental Finance Authority 47 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2d - Gas ovens 2.0201.2c - CO detection and warning equipment Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): CO detection or warning equipment will be installed outside of each separate sleeping area in the immediate vicinity of the bedrooms in accordance with ASHRAE 62.2 and authority having local jurisdiction Installation will be accomplished by a licensed electrician when required by local code Objective(s): Alert occupant to CO exposure Best Practice Carbon Monoxide alarms should be installed according to local codes Best Practice Alarms should be mounted near sleeping areas--such as the one marked in red Tools: 1. Drill Materials: 1. CO alarm 2. Fasteners 2.0201.2d - Gas ovens Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): Gas ovens will be tested for CO GA Wx Field Guide Georgia Environmental Finance Authority 48 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2e - Gas range burners A clean and tune will be conducted if measured CO in the undiluted flue gases of the oven vent at steady state exceeds 225 ppm as measured Objective(s): Ensure clean burn of gas ovens Unsafe If CO reading as measured exceeds 225ppm, order a clean and tune Tools: 1. Combustion analyzer with probe Best Practice Test gas oven for carbon monoxide using a combustion gas analyzer 2.0201.2e - Gas range burners Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): Specify clean and tune if the flame has any discoloration, flame impingement, an irregular pattern, or if burners are visibly dirty, corroded, or bent Objective(s): Ensure clean burn and operation of gas range burners GA Wx Field Guide Georgia Environmental Finance Authority 49 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2f - Solid fuel burning appliances Before Discoloration is a clear sign that a gas range needs a clean and tune After A properly operating gas range burner should have an even blue flame 1 Yellow, uncontrolled flames indicate the need for a clean and tune 2 3 Gas ranges should be cleaned and Blue, even flames indicate burners are tuned if improper operation is evident working properly 2.0201.2f - Solid fuel burning appliances Desired Outcome: Buildup of dangerous combustion byproducts in the living space prevented Specification(s): If the solid fuel burning appliance is the primary heat source and has signs of structural failure replace solid fuel burning appliance with UL-listed and EPA - certified appliances if the existing appliance is not UL-listed Objective(s): Ensure safe operations of solid fuel burning appliances GA Wx Field Guide Georgia Environmental Finance Authority 50 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.2f - Solid fuel burning appliances Unsafe Unsafe solid fuel burning appliances should be replaced Safe New appliances should be UL-listed and EPA-certified Since 1988, the EPA has regulated particulate emissions from wood heaters. The limit is 7.5 grams per hour for non-catalytic appliances, and 4.1 grams per hour for catalytic appliances. Locate data plate to find out appliance ratings Check appliance rating plates for EPA and UL markings (or CSA, ETL, or WH markings) GA Wx Field Guide Georgia Environmental Finance Authority 51 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety General 2.0201.3 - Vented Combustion Appliance Safety Testing Desired Outcome: Accurate information about appliance safe operation is gathered 2.0201.3a - Spillage Test Desired Outcome: Accurate information about appliance safe operation is gathered Specification(s): In conditions with largest negative pressure as determined from Detail 2.0201.1e: If spillage in a combustion appliance with a warm vent exceeds two minutes during pressure testing, specify measures to mitigate If spillage in a combustion appliance with a cold vent exceeds five minutes during pressure testing, specify measures to mitigate Objective(s): Detect excessive spillage of combustion gases Unsafe Test natural draft furnace or water heater for spillage in excess of 2min Best Practice Test all sides of natural draft flues since draft may be uneven Tools: 1. Smoke pencil 2. Timer 3. Mirror GA Wx Field Guide Georgia Environmental Finance Authority 52 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety 2.0201.3b - Carbon monoxide (CO) test in appliance General vent 2.0201.3b - Carbon monoxide (CO) test in appliance vent Desired Outcome: Accurate information about appliance safe operation is gathered Specification(s): CO will be tested for in undiluted flue gases of combustion appliances In conditions with largest negative pressure as determined from Detail 2.0201.1e: If CO levels exceed 400 ppm air-free measurement in furnaces, service will be provided to reduce CO to below these levels (unless CO measurement is within manufacturer specifications) If CO levels exceed 200 ppm air-free measurement in water heaters or room heaters, service will be provided to reduce CO to below these levels (unless CO measurement is within manufacturer specifications) Objective(s): Measure CO and report excessive levels Unsafe CO levels cannot exceed 200ppm as measured, unless to manufacturer specs Best Practice Test CO levels in undiluted flue gases and exhaust outlets, when accessible Tools: 1. Combustion analyzer with probe 2. Personal carbon monoxide detector It is recommended as a best practice that technicians in the field have a dedicated CO monitoring device on their person to monitor ambient CO levels independent of the combustion analyzer. GA Wx Field Guide Georgia Environmental Finance Authority 53 of 491 June 22, 2018 Health and Safety > Combustion Safety > Combustion Safety 2.0201.3b - Carbon monoxide (CO) test in appliance General vent CO levels cannot exceed 200ppm, or Test undiluted flue gases in induced- Test undiluted flue gases in natural 400ppm air-free CO draft furnaces draft furnaces Test undiluted flue gases in natural draft water heaters. Test accessible exhaust outlets for direct-vent appliances Test accessible exhaust outlets for power-vented appliances GA Wx Field Guide Georgia Environmental Finance Authority 54 of 491 June 22, 2018 Health and Safety > Combustion Safety > Unvented Space Heaters 2.0202.1 - Unvented Space Heaters: Propane, Natural Gas, and Kerosene Heaters Desired Outcome: Elimination of combustion byproducts 2.0202.1a - Removal Desired Outcome: Elimination of combustion byproducts Specification(s): With the occupant's permission, unvented heaters will be removed, except when used as a secondary heat source and when it can be confirmed that the unit is listed to ANSI Z21.11.2 Units that are not being operated in compliance with ANSI Z21.11.2 should be removed before the retrofit but may remain until a replacement heating system is in place Failure to remove unvented space heaters serving as primary heat sources has the potential to create hazardous conditions and thus any further weatherization services will be re-evaluated in the context of potential indoor air quality risks Objective(s): Eliminate sources of combustion byproduct within a living space 2.0202.1b - Occupant education Desired Outcome: Elimination of combustion byproducts Specification(s): Occupant will be educated on potential hazards of unvented combustion appliances (primary or secondary) within a living space Objective(s): Inform occupant about possible hazards associated with combustion byproducts and moisture GA Wx Field Guide Georgia Environmental Finance Authority 55 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.1 - Combustion Air for Natural Draft Appliances Desired Outcome: Sufficient air provided in the Combustion Appliance Zone (CAZ) 2.0203.1a - Required combustion air Desired Outcome: Sufficient air provided in the Combustion Appliance Zone (CAZ) Specification(s): The required volume of indoor air will be determined in accordance with IRC and authority having jurisdiction, except that where the air infiltration rate is known to be less than 0.40 air changes per hour (ACH), IRC will be used Exception: Existing appliances that have passed combustion safety testing per BPI 1200 are deemed to have sufficient combustion air Objective(s): Determine if existing conditions meet the combustion air calculation 2.0203.1b - Additional combustion air (if action is required) Desired Outcome: Sufficient air provided in the Combustion Appliance Zone (CAZ) Specification(s): Additional combustion air will be provided in accordance with IRC and authority having jurisdiction when necessary to solve spillage problems Objective(s): Ensure adequate combustion air for operation of the appliance 2.0203.1c - Spillage testing Desired Outcome: Sufficient air provided in the Combustion Appliance Zone (CAZ) GA Wx Field Guide Georgia Environmental Finance Authority 56 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.1c - Spillage testing Specification(s): If spillage in a combustion appliance with a warm vent exceeds two minutes during pressure testing, specify measures to mitigate If spillage in a combustion appliance with a cold vent exceeds five minutes during pressure testing, specify measures to mitigate Objective(s): Detect excessive spillage of combustion gases GA Wx Field Guide Georgia Environmental Finance Authority 57 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.2 - Combustion Flue Gas--Orphaned Water Heaters Desired Outcome: Flue gasses successfully removed from the house 2.0203.2a - Spillage testing Desired Outcome: Flue gasses successfully removed from the house Specification(s): If spillage in a combustion appliance with a warm vent exceeds two minutes during pressure testing, specify measures to mitigate If spillage in a combustion appliance with a cold vent exceeds five minutes during pressure testing, specify measures to mitigate Objective(s): Detect excessive spillage of combustion gases Unsafe Orphaned water heaters have oversized flues after a furnace is removed Tools: 1. Timer or stopwatch 2. Smoke pencil 3. Mirror Unsafe Spillage should not exceed 2 minutes, if present GA Wx Field Guide Georgia Environmental Finance Authority 58 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.2b - Flue gas removal (chimney liner or approved methods) 2.0203.2b - Flue gas removal (chimney liner or approved methods) Desired Outcome: Flue gasses successfully removed from the house Specification(s): A chimney liner will be installed in accordance with the IRC or applicable NFPA standard Objective(s): Allow water heater to vent properly Prevent damage to the chimney Tools: 1. hammer drill 2. disposable brushes 3. tin snips 4. 5/16" nut driver 5. pulling cone 6. rope 7. caulking gun 8. tape measure Materials: 1. Flexible chimney liner 2. Elbows 3. Tees 4. Refractory cement 5. Rain cap 6. Thimble 7. Bricks 8. Mortar Connect chimney liner to appliance in accordance with applicable codes. 1 2 3 Identify masonry chimneys being used as combustion appliance vents Measure from the bottom termination to the chimney crown. Add one foot to the measurement and cut the liner to length Pull the liner to the desired position with a rope and pulling cone GA Wx Field Guide Georgia Environmental Finance Authority 59 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.2c - Retesting spillage 4 Cut liner off 4 inches above top of chimney crown 5 Complete the top and bottom connections 6 Seal around penetrations in chimney with refractory cement 2.0203.2c - Retesting spillage Desired Outcome: Flue gasses successfully removed from the house Specification(s): If a combustion appliance spillage exceeds two minutes during pressure testing, specify measures to mitigate Objective(s): Ensure appliance is not spilling longer than two minutes with a warm vent Before If spillage continues to exceed 2 min, additional repairs are required After The elimination of the oversized chimney should prevent spillage GA Wx Field Guide Georgia Environmental Finance Authority 60 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances Tools: 1. Timer or stopwatch 2. Smoke pencil 3. Mirror 2.0203.2c - Retesting spillage 1 2 Retest for spillage. If spillage remains, Repipe the flue to eliminate the more repair is needed. oversized chimney 3 When repairs have been completed, no spillage should occur after two minutes GA Wx Field Guide Georgia Environmental Finance Authority 61 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances 2.0203.4 - Occupant Education Desired Outcome: Ensure persistence of resident safety 2.0203.4a - Occupant health and safety Desired Outcome: Ensure persistence of resident safety Specification(s): All homes will have a functioning CO alarm If CO levels in interior living spaces exceed outdoor levels, potential sources will be investigated and appropriate action taken to reduce them (e.g., have a qualified professional tune, repair, or replace improperly operating combustion appliances; apply weather stripping or conduct air sealing between the garage or crawl space and the home) Objective(s): Ensure occupant health and safety Ensure indoor CO levels do not exceed outdoor CO levels 2.0203.4b - Occupant education Desired Outcome: Ensure persistence of resident safety Specification(s): Occupants will be educated on the operation and maintenance of the CO alarm Completed work on combustion appliances and recommended maintenance will be reviewed with occupant Occupant will be provided information regarding the health effects and risk of high CO concentrations; EPA provides possible expanded actions and offers client education information in an appendix to the protocols Objective(s): GA Wx Field Guide Georgia Environmental Finance Authority 62 of 491 June 22, 2018 Health and Safety > Combustion Safety > Vented Gas Appliances Ensure occupant can operate and maintain installations Inform occupant regarding possible CO hazards 2.0203.4b - Occupant education GA Wx Field Guide Georgia Environmental Finance Authority 63 of 491 June 22, 2018 Health and Safety > Safety Devices > Combustion Safety Devices 2.0301.1 - Smoke Alarm Desired Outcome: Properly installed smoke alarms Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 2.0301.1a - Smoke alarm (hardwired) Desired Outcome: Properly installed smoke alarms Specification(s): When installing hardwired smoke alarms, it will be listed and labeled in accordance with UL 217 and installed in accordance with the IRC or as required by the authority having jurisdiction Objective(s): Ensure proper installation 2.0301.1b - Smoke alarm (battery operated) Desired Outcome: Properly installed smoke alarms Specification(s): When installing battery operated smoke alarms, it will be installed in accordance with manufacturer specifications Objective(s): Ensure proper installation GA Wx Field Guide Georgia Environmental Finance Authority 64 of 491 June 22, 2018 Health and Safety > Safety Devices > Combustion Safety Devices 2.0301.2 - Carbon Monoxide Alarm or Monitor Desired Outcome: Properly installed CO alarms or monitors Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 2.0301.2a - CO detection and warning equipment (hardwired) Desired Outcome: Properly installed CO alarms or monitors Specification(s): Hardwired CO detection or warning equipment will be installed in accordance with the ASHRAE 62.2 or as required by the authority having jurisdiction Installation will be accomplished by a licensed electrician when required by the authority having jurisdiction Objective(s): Ensure proper installation 2.0301.2b - CO detection and warning equipment (battery operated) Desired Outcome: Properly installed CO alarms or monitors Specification(s): Battery-operated CO detection or warning equipment will be installed in accordance with the ASHRAE 62.2 and manufacturer specifications as required by the authority having jurisdiction Objective(s): Ensure proper installation GA Wx Field Guide Georgia Environmental Finance Authority 65 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.1 - Vented Crawl Spaces--Ground Moisture Barrier Desired Outcome: Durable, effective ground moisture barrier provides long-lasting access and minimizes ground vapor 2.0403.1b - Coverage Desired Outcome: Durable, effective ground moisture barrier provides long-lasting access and minimizes ground vapor Specification(s): A ground moisture barrier that covers the exposed crawl space floor will be installed Objective(s): Reduce ground moisture entering the crawl space Before Uncovered crawl space floors can cause moisture damage After Ground moisture barrier to cover 100% of floor is installed last Materials: 1. Plastic sheeting (at least 6 mil) 2. Furring strips 3. Fasteners 4. Polyurethane construction adhesive 2.0403.1c - Material specification Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 66 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.1d - Overlap seams Durable, effective ground moisture barrier provides long-lasting access and minimizes ground vapor Specification(s): A ground moisture barrier with a rating of no more than 0.1 perm will be used A ground moisture barrier will be used that meets tear and puncture resistance standard ASTM E1745 Homeowner will be advised that all plastic is biodegradable and will have a life span much shorter than the home (5 years), and it will need replacing to remain effective Objective(s): Ensure crawl space is accessible for service and maintenance without damaging the integrity of the ground moisture barrier After Barrier must be at least 6 mil and be tear and puncture resistant Materials: 1. Plastic sheeting (at least 6 mil) 2. Furring strips 3. Fasteners 4. Polyurethane construction adhesive 2.0403.1d - Overlap seams Desired Outcome: Durable, effective ground moisture barrier provides long-lasting access and minimizes ground vapor Specification(s): When seams exist, they will be overlapped a minimum of 12" using reverse or upslope lapping technique GA Wx Field Guide Georgia Environmental Finance Authority 67 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers Objective(s): Keep water under the liner Reduce the likelihood of damage at seams 2.0403.1e - Fastening Before Ground moisture barriers help keep moisture from permeating floor. After Ground moisture barrier overlaps at seams at least 12 inches and is securely fastened to walls and ground Tools: 1. Stapler 2. Utility knife 3. Drill Materials: 1. Ballast 2. Plastic sheeting (at least 6 mil) 3. Furring strips 4. Seam tape - moisture resistant. Examples: Butyl tape, Gorilla tape 5. Landscape staples 6. Polyurethane construction adhesive 1 Securely fasten moisture barrier to wall at least 6 inches from ground 2 Overlap seams at least 12 inches, using a reverse shingle method on sloping ground to allow water to drain GA Wx Field Guide Georgia Environmental Finance Authority 68 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.1e - Fastening 2.0403.1e - Fastening Desired Outcome: Durable, effective ground moisture barrier provides long-lasting access and minimizes ground vapor Specification(s): When ground moisture barrier is installed on sloping ground, may be exposed to wind, or accessed for routine maintenance or storage it will be fastened to ground with durable fasteners or ballast(s) Objective(s): Prevent movement of the ground moisture barrier Best Practice Ground moisture barrier extends up the wall, is fastened with staples, and is held in place with ballast Tools: 1. Stapler 2. Drill Materials: 1. Plastic sheeting (al least 6 mil) 2. Furring strips 3. Staples 4. Landscape staples 5. Cut nails, case hardened nails, or masonry screws 1 GA Wx Field Guide Georgia Environmental Finance Authority 2 69 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.1e - Fastening Seams on walls can be taped to prevent water leakage Use mechanical fasteners such as staples or furring strips on the walls. Use ballast or landscape staples on the ground GA Wx Field Guide Georgia Environmental Finance Authority 70 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.2 - Closed Crawl Spaces--Ground Moisture Barriers Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor 2.0403.2b - Coverage Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor Specification(s): An air barrier and ground moisture barrier, covering the exposed crawl space floor, will be installed and sealed to the wall's air and moisture barrier in accordance with ASTM E1643 and manufacturer's recommendations Ground moisture barrier will be fastened to ground in accordance with manufacturer's recommendations and extend a minimum of 6 inches up the foundation wall Objective(s): Reduce ground moisture entering the crawl space Create a continuous and durable connection between the wall and ground air and moisture barriers Before Uncovered crawl space floors can lead to moisture issues After Ground moisture barrier should cover 100% of floor and at least 6" of walls GA Wx Field Guide Georgia Environmental Finance Authority 71 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.2c - Material specification Materials: 1. Plastic sheeting (al least 6 mil) 2. Furring strips 3. Fasteners 2.0403.2c - Material specification Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor Specification(s): A ground moisture barrier with a rating of no more than 0.1 perm will be used A ground moisture barrier will be used that meets tear and puncture resistance standard ASTM E1745 Homeowner will be advised that all plastic is biodegradable and will have a life span much shorter than the home, and it will need replacing to remain effective Objective(s): Reduce ground vapor entering the crawl space Ensure crawl space is accessible for service and maintenance without destroying the integrity of the moisture barrier Best Practice Barrier must be at least 6 mil, able to withstand puncture and last 10 yrs GA Wx Field Guide Georgia Environmental Finance Authority 72 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.2d - Overlap seams Materials: 1. Plastic sheeting (at least 6 mil) 2. Furring strips 3. Fasteners 4. Polyurethane construction adhesive 5. Landscape staples 6. Heavy duty tape such as Gorilla Tape or waterproof seam tape 2.0403.2d - Overlap seams Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor Specification(s): When seams exist, they will be overlapped a minimum of 12" with reverse or upslope lapping technique For wall to floor connection, the wall moisture barrier will be installed under the ground moisture barrier Objective(s): Keep water under the liner Before Ground moisture barriers help keep moisture from permeating floor After Ground moisture barrier overlaps at least 12 in and is securely fastened GA Wx Field Guide Georgia Environmental Finance Authority 73 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers Tools: 1. Stapler 2. Utility knife 3. Drill 2.0403.2e - Fastening Materials: 1. Ballast 2. Plastic sheeting (at least 6mil) 3. Furring strips 4. Moisture-resistant adhesive tape 1 Securely fasten moisture barrier to wall at least 6 inches from ground 2 Overlap seams at least 12 inches, using a shingle method to keep water out 2.0403.2e - Fastening Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor Specification(s): When ground moisture barrier is installed on sloping ground, or accessed for routine maintenance or storage it will be fastened to ground with durable fasteners or ballast(s) Objective(s): Prevent movement and uplift of the air barrier and ground moisture barrier GA Wx Field Guide Georgia Environmental Finance Authority 74 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.2f - Sealing seams Moisture barrier is fastened to sill with staples, and is weighed down with rebar as ballast Tools: 1. Drill 2. Stapler This closed crawlspace uses spray polyurethane foam to seal vapor barrier to the wall and to seal the rim joist Materials: 1. 6 mil or greater polyethylene sheeting 2. Furring strips 3. Fasteners such as nails, screws, or staples for use on walls 4. Landscape staples, rebar, or bricks to hold sheeting down 5. Spray polyurethane foam may be used to seal rim joist and plastic to walls 2.0403.2f - Sealing seams Desired Outcome: Durable, effective air barrier and ground moisture barrier provide ongoing access and minimize ground vapor Specification(s): A durable sealant compatible with the air barrier and ground moisture barrier will be used Objective(s): Maintain continuous air barrier and ground moisture barrier GA Wx Field Guide Georgia Environmental Finance Authority 75 of 491 June 22, 2018 Health and Safety > Moisture > Vapor Barriers 2.0403.2f - Sealing seams Before Crawl spaces lacking moisture barrier risk moisture penetration of floor Tools: 1. Utility knife After Ground moisture barriers in unvented spaces should be sealed Materials: 1. Moisture-resistant adhesive tape, for example, butyl tape or Gorilla tape 1 Tape wall seams and press to ensure airtight bonding of adhesive 2 Tape (overlapped) floor seams to prevent movement and water leakage GA Wx Field Guide Georgia Environmental Finance Authority 76 of 491 June 22, 2018 Health and Safety > Radon > Air Sealing 2.0501.1 - Radon--Air Sealing Considerations, Basements, and Crawl spaces Desired Outcome: Work completed without increasing occupant exposure to radon 2.0501.1a - Radon testing and mitigation Desired Outcome: Work completed without increasing occupant exposure to radon Specification(s): Radon testing and mitigation will be done in accordance with the Environmental Protection Agency (EPA) Healthy Indoor Environment Protocols for Home Energy Upgrades Objective(s): Reduce potential for occupant exposure to radon GA Wx Field Guide Georgia Environmental Finance Authority 77 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring 2.0601.1 - Knob and Tube Wiring Desired Outcome: Live unsafe wiring identified and brought to local codes Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 2.0601.1a - Knob and tube identification Desired Outcome: Live unsafe wiring identified and brought to local codes Specification(s): Contractor, assessor, auditor, or similar will inspect and assess the house to identify knob and tube wiring Objective(s): Ensure occupant safety Preserve the integrity and safety of the house Knob and tube wiring should be identified before work begins Distinctive "knobs" are highlighted. This wiring can be a safety hazard 2.0601.1b - Live wire testing Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 78 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring 2.0601.1c - Isolation and protection Live unsafe wiring identified and brought to local codes Specification(s): Non-contact testing method will be used to determine if wiring is live Objective(s): Protect occupant safety Preserve the integrity and safety of the house Before Knob & tube wiring needs to be tested to determine if still live. Red=live Tools: 1. Non-contact wire tester After Live wiring should be dammed or professionally disabled before insulating 2.0601.1c - Isolation and protection Desired Outcome: Live unsafe wiring identified and brought to local codes Specification(s): Proper clearance will be maintained around live knob and tube as required by the National Electrical Code ( NEC ) or authority having jurisdiction When required, a dam that does not cover the top will be created to separate insulation from the wire path Objective(s): Ensure occupant safety GA Wx Field Guide Georgia Environmental Finance Authority 79 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring Preserve the integrity and safety of the house 2.0601.1c - Isolation and protection Before Live knob & tube wiring may get hot and should not be insulated over After Dams should be installed to hold back loose fill insulation Tools: 1. Drill 2. Tape measure 3. Non-contact wire tester Materials: 1. Plywood 2. Drywall 3. Fasteners NEC guidelines and local jurisdictions are very particular on the treatment of knob & tube wiring. Check your local codes. Have a certified electrician verify that wiring is safe to work around A sign should be posted at all entrances to warn of knob & tube wiring Warning sign should remind to contact certified electrician for repairs GA Wx Field Guide Georgia Environmental Finance Authority 80 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring 2.0601.1d - Replacement Many jurisdictions require a sign in Spanish as well Damming should extend above installed height of insulation With dams in place, insulation can begin 2.0601.1d - Replacement Desired Outcome: Live unsafe wiring identified and brought to local codes Specification(s): Wiring will be replaced with new appropriate wiring in accordance with the NEC National Electrical Code and local codes Old wiring will be rendered inoperable by licensed electrician in accordance with the NEC National Electrical Code and local codes Objective(s): Ensure occupant safety Preserve the integrity and safety of the house GA Wx Field Guide Georgia Environmental Finance Authority 81 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring 2.0601.1d - Replacement Before After Knob and tube wiring may get hot and cannot If possible, k&t wiring should be disabled and be insulated over replaced with modern wiring Tools: 1. Non-contact wire tester Materials: 1. Romex as needed NEC guidelines and local jurisdictions have many codes dealing with the treatment of knob & tube wiring. Check your local codes. The entire knob and tube system should be disabled Many electricians will remove old Exposed knob and tube should be exposed wiring to prevent reactivation replaced with modern wiring With modern wiring in place and old GA Wx Field Guide Georgia Environmental Finance Authority 82 of 491 June 22, 2018 Health and Safety > Electrical > Knob and Tube Wiring k&t disabled, insulation can begin 2.0601.1d - Replacement GA Wx Field Guide Georgia Environmental Finance Authority 83 of 491 June 22, 2018 Health and Safety > Occupant Education and Access > Basements and Crawl Spaces 2.0701.1 - Crawl Spaces--Providing New Access Desired Outcome: Access to the closed crawl space is controlled and the ground moisture barrier is protected to maintain the integrity of the system 2.0701.1a - Crawl Spaces - Providing New Access Desired Outcome: Access to the closed crawl space is controlled and the ground moisture barrier is protected to maintain the integrity of the system Specification(s): Crawl space will be accessible in accordance with IRC Access to mechanical equipment located in the crawl space will be in accordance with IRC Service and maintenance of the crawl space and equipment will be performed without risk of damage to the thermal barrier, air barrier, and ground moisture barrier in accordance with IRC Objective(s): Provide crawl space access Maintain integrity of the crawl space system 2.0701.1b - Security Desired Outcome: Access to the closed crawl space is controlled and the ground moisture barrier is protected to maintain the integrity of the system Specification(s): At client's/resident's discretion, a lockable access will be provided if access is from the exterior. Objective(s): Control access and prevent intruders GA Wx Field Guide Georgia Environmental Finance Authority 84 of 491 June 22, 2018 Health and Safety > Occupant Education and Access > Basements and Crawl Spaces 2.0701.2 - Crawl Space Information Sign Desired Outcome: Posted signs inside of the crawl space provide essential safety and maintenance information to occupant and users of the crawl space Note: 2.0701.2a - Sign specifications Desired Outcome: Posted signs inside of the crawl space provide essential safety and maintenance information to occupant and users of the crawl space Specification(s): A durable, easily seen sign will be installed at all accesses inside of the crawl space (minimum 8 " x 11") A minimum expected service life of 10 years will be ensured Objective(s): Prevent damage to the crawl space after upgrade Crawl space access points should have signage to alert occupant and workers Best Practice Sign should be highly-visible, securelyfastened, and durable 2.0701.2b - Sign content Desired Outcome: Posted signs inside of the crawl space provide essential safety and maintenance information to GA Wx Field Guide Georgia Environmental Finance Authority 85 of 491 June 22, 2018 Health and Safety > Occupant Education and Access > Basements and Crawl Spaces 2.0701.2b - Sign content occupant and users of the crawl space Specification(s): Those entering the crawl space will be cautioned not to damage the air barrier, ground moisture barrier, insulation, and mechanical components specific to the crawl space type Anyone entering the crawl space will be alerted that immediate repairs are needed in case of damage Installer contact information will be included on the sign in case there are questions or needs for repairs Objective(s): Prevent damage to the crawl space after upgrade Educate anyone entering the crawl space Provide occupants with a way to contact the installer Best Practice Mount sign where clearly visible to anyone entering crawl space Tools: 1. Printer 2. Staple gun Be sure sign includes relevant information to aid occupant in repairs Materials: 1. Paper 2. Laminant 3. Staples GA Wx Field Guide Georgia Environmental Finance Authority 86 of 491 June 22, 2018 Health and Safety > Occupant Education and Access > Basements and Crawl Spaces 2.0701.2c - Hazard warning Hacer la seal en espaol tambin 2.0701.2c - Hazard warning Desired Outcome: Posted signs inside of the crawl space provide essential safety and maintenance information to occupant and users of the crawl space Specification(s): Language prohibiting storage of hazardous and flammable materials will be provided on site Objective(s): Prevent storage of hazardous or flammable materials in the crawl space Maintain indoor air quality Prevent a fire hazard Alert those entering the crawl space never to store hazardous materials Best Practice Mount sign where anyone entering the crawl space can see it GA Wx Field Guide Georgia Environmental Finance Authority 87 of 491 June 22, 2018 Health and Safety > Occupant Education and Access > Basements and Crawl Spaces 2.0701.2c - Hazard warning Tools: 1. Staple gun 2. Printer Materials: 1. Paper 2. Laminant 3. Staples Hacer la seal en espaol tambin GA Wx Field Guide Georgia Environmental Finance Authority 88 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.1 - Penetrations and Chases Desired Outcome: Penetrations and chases sealed to prevent air leakage and moisture movement between the attic and conditioned space 3.1001.1d - High temperature application Desired Outcome: Penetrations and chases sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Only non-combustible sealant will be used in contact with chimneys, vents, and flues Local codes will be referenced Objective(s): Prevent a fire hazard Before Gaps around combustion exhaust flues need to be sealed After Sealed penetrations and chases should utilize high-temperature materials Tools: 1. Drill/screwdriver 2. Caulk gun 3. Metal snips Materials: 1. High-temperature caulking 2. 26-gauge steel sheeting See 3.1402.1c for Clearance Requirements GA Wx Field Guide Georgia Environmental Finance Authority 89 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.1d - High temperature application 1 Prepare work area by removing any insulation and debris 2 3 Use high-temperature caulking (600F Apply first ring of caulking to match min) shape of opening 4 Apply second ring of caulking to size and shape of rigid material 5 6 Fasten rigid material (26-gauge steel) Fasten rigid material to cover and apply additional caulking penetration and seal against flue with caulk GA Wx Field Guide Georgia Environmental Finance Authority 90 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.2 - Chase Capping Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space 3.1001.2a - Pre-inspection Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): An inspection will be conducted for mold, water leaks, and water damage before sealing a chase Repairs will be completed before work begins Objective(s): Repair moisture-related issues Tools: 1. flashlight 2. headlamp 3. hammer 4. prybar 5. circular saw 6. reciprocating saw 7. borescope 8. mirror 1 2 Locate and expose chases to prepare Clear away insulation and debris to 3 Carefully investigate areas with high GA Wx Field Guide Georgia Environmental Finance Authority 91 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.2b - Standard chase (interior walls covered with drywall or plaster) for inspection and capping/sealing allow inspection potential for water leaks 3.1001.2b - Standard chase (interior walls covered with drywall or plaster) Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Entire opening will be spanned with rigid material Material will be cut to fit and fastened as required Objective(s): Reduce opening to what can be sealed with sealant Before Unsealed standard chases covered with drywall can be leakage points Tools: 1. Drill/screwdriver 2. Caulk gun After The air barrier is be maintained by capping chases with rigid material Materials: 1. XPS 2. Drywall 3. Caulk 4. Sheet metal 5. OSB or plywood GA Wx Field Guide Georgia Environmental Finance Authority 92 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.2c - Non-standard chase (interior walls covered with wood or paneling) 1 Clear area of debris and insulation in preparation for work 2 Apply sealant all the way around opening 3 Trim rigid material, such as drywall or XPS, to size and place over sealant 4 Fasten rigid material appropriately, such as with screws 3.1001.2c - Non-standard chase (interior walls covered with wood or paneling) Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Material will be used that can be exposed to the interior of the house and meet the flame and smoke spread indexes as required in IRC Objective(s): Prevent a fire hazard GA Wx Field Guide Georgia Environmental Finance Authority 93 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.2d - Support Before Paneled drop soffits typically are more combustible than plain drywall After When sealing on attic side, drywall and XPS are viable materials Tools: 1. Drywall saw 2. Tape measure 3. Caulk gun 4. Drill Materials: 1. Drywall 2. XPS 3. Fire-block sealant 4. Fasteners EPS or bead-board are not acceptable materials. Sealing with drywall reduces overall combustibility of paneled chases Sealing with XPS also reduces overall combustibility of paneled chases 3.1001.2d - Support Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated GA Wx Field Guide Georgia Environmental Finance Authority 94 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag 3.1001.2d - Support Before Spans greater than 24 inches require additional bracing before capping Tools: 1. Drill 2. Saw 3. Tape measure After Support should prevent cap from sagging or moving Materials: 1. Lumber 2. Drywall 3. Fasteners Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase GA Wx Field Guide Georgia Environmental Finance Authority 95 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.2e - Joint seal Ensure new bracing is secure by using Once chase is capped, it is now ready screws to fasten to joist to be sealed along framing 3.1001.2e - Joint seal Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Objective(s): Provide airtight, durable seal that does not move, bend, or sag Before Chases need to be capped and sealed to prevent leakage Tools: 1. Spray foam gun 2. Caulk gun After Chase is sealed along all cracks, gaps, and penetrations Materials: 1. Spray foam 2. Caulk GA Wx Field Guide Georgia Environmental Finance Authority 96 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases Always wear protective gloves when working with sealants. 3.1001.2f - Adjacent framing 1 2 3 Chase has been capped but needs to Sealant is used to fill in all cracks and Cap is sealed be sealed gaps along edges of chase cap 3.1001.2f - Adjacent framing Desired Outcome: Chase capped to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps at the top of the chase will be sealed Objective(s): Ensure airtight seal from one finished side of the chase to the other Before Chases need to be capped and sealed to prevent leakage After Chase is sealed along all cracks, gaps, and penetrations GA Wx Field Guide Georgia Environmental Finance Authority 97 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases Tools: 1. Spray foam gun 2. Caulk gun Materials: 1. Spray foam 2. Caulk Always wear gloves when working with sealant. 3.1001.2f - Adjacent framing 1 2 Sealant is used to fill in all cracks and gaps along edges of Extend seal along adjacent framing chase cap GA Wx Field Guide Georgia Environmental Finance Authority 98 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.3 - Walls Open to Attic--Balloon Framing and Double Walls Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space 3.1001.3b - Sealing methods Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Entire opening will be spanned with rigid material in line with the ceiling level Material will be cut to fit and fastened as required OR Wall below openings will be dense packed OR Wall below openings will be bridged and sealed with spray polyurethane foam (SPF) Sealants will be used that prevent visible air movement using chemical smoke at 50 pascals of pressure difference Objective(s): Prevent air leakage from wall cavity to attic GA Wx Field Guide Georgia Environmental Finance Authority 99 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.3b - Sealing methods Before Wall cavities are open to attic Tools: 1. Utility knife 2. Saw 3. Insulation machine 4. Caulk gun 5. Spray foam gun After Whatever option chosen, test for visible air movement with smoke pencil Materials: 1. Drywall 2. XPS 3. Spray foam 4. Caulk 5. Fasteners 6. Dense packable insulation 7. Lumber Option 1: Dense pack cavities through Option 2: Bridge cavities with spray wood cap fastened in place foam Option 3, Step 1: Apply sealant around opening and on surrounding framing GA Wx Field Guide Georgia Environmental Finance Authority 100 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.3c - Support Option 3, Step 2, Option A: Cap with XPS and seal exposed joints Option 3, Step 2, Option B: Cap with drywall and seal exposed joints 3.1001.3c - Support Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag Before Spans greater than 24 inches require additional bracing before capping After Support should prevent cap from sagging or moving GA Wx Field Guide Georgia Environmental Finance Authority 101 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases Tools: 1. Saw 2. Drill 3. Tape measure Materials: 1. Lumber 2. Drywall 3. Fasteners 3.1001.3d - Joint seal Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase Ensure new bracing is secure by using Once chase is capped, it is now ready screws to fasten to joist to be sealed along framing 3.1001.3d - Joint seal Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Objective(s): Provide airtight, durable seal that does not move, bend, or sag GA Wx Field Guide Georgia Environmental Finance Authority 102 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.3e - Adjacent framing Before Balloon framing needs to be capped and sealed to prevent leakage Tools: 1. Spray foam gun 2. Caulk gun After All edges of the cap should be sealed to surrounding surfaces Materials: 1. Spray foam 2. Caulk For rigid material applications, extend sealant along all seams Extend sealant or SPF along joist to seal all gaps 3.1001.3e - Adjacent framing Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps at the top of the opening will be sealed OR All remaining gaps at the top of the chase will be sealed GA Wx Field Guide Georgia Environmental Finance Authority 103 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.3e - Adjacent framing Objective(s): Ensure airtight seal from one finished side of the wall assembly to the other Before Balloon framing needs to be capped and sealed to prevent leakage Tools: 1. Spray foam gun 2. Caulk gun After All edges of the cap should be sealed to surrounding surfaces, including adjacent framing Materials: 1. Spray foam (SPF) 2. Caulk For rigid material applications, sealant should be applied to When using SPF to bridge cavity, extend SPF along joist framing and adjacent framing GA Wx Field Guide Georgia Environmental Finance Authority 104 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.10 - Non-Insulation Contact (IC) Recessed Light Desired Outcome: Ensure safety from fire and prevent air leakage 3.1001.10a - Air barrier system Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): A fire-rated air barrier system (i.e. equivalent to 5/8 fire code gypsum wallboard) will be used to separate non-IC rated recessed lights from insulation, using one of the methods below: A fire-rated airtight closure taller than surrounding attic insulation will be placed over non-IC rated recessed lights OR The non-IC rated light fixture will be replaced with an airtight and IC- rated fixture OR The fixture(s) may be replaced with surface mounted fixture and opening sealed Objective(s): Prevent a fire hazard Prevent air leakage through fixture 3.1001.10b - Enclosure top Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): The top-fire rated enclosure material will have an R-value of 0.5 or less The top of the enclosure will be left free of insulation GA Wx Field Guide Georgia Environmental Finance Authority 105 of 491 June 22, 2018 Air Sealing > Attics > Penetrations and Chases 3.1001.10c - Clearance Objective(s): Prevent heat build up 3.1001.10c - Clearance Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): The entire closure will maintain a 3" clearance between the closure and the fixture including wiring, box, and ballast Objective(s): Keep an air space around the fixture 3.1001.10d - Sealants and weather stripping Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): Caulk, mastic, or foam will be used on all edges, gaps, cracks, holes, and penetrations of closure material only Objective(s): To prevent air leakage, completely adhere the sealant to all surfaces to be sealed GA Wx Field Guide Georgia Environmental Finance Authority 106 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.1 - New Ceiling Below Original--Old Ceiling Intact or Repairable Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Note: 3.1003.1b - Sealing methods Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Entire opening will be spanned with rigid material in line with the ceiling level Material will be cut to fit and fastened as required OR Side of stud bays will be sealed with rigid material from bottom of dropped ceiling to top-plate OR Wall below openings will be dense packed OR Wall below openings will be bridged and sealed with SPF Seals will be used that prevent visible air movement using chemical smoke at 50 pascals of pressure difference Objective(s): Prevent air leakage from dropped ceiling to attic GA Wx Field Guide Georgia Environmental Finance Authority 107 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.1b - Sealing methods Before Damage to an older ceiling reveals the new ceiling below After Rigid material sealed in place creates an air barrier Tools: 1. Utility knife 2. Saw 3. Drill 4. Insulation machine 5. Caulk gun 6. Spray foam gun 7. Tape measure Materials: 1. Caulk sealant 2. Rigid material -- XPS or Drywall 3. Spray foam 4. Fasteners 5. Dense packable insulation 6. Wrapped fiberglass batts Prepare work area by removing existing insulation and debris Option 1, Step 1: Run a bead of Option 1, Step 2: Cover openings with sealant around damage in old ceiling rigid material, either XPS or drywall GA Wx Field Guide Georgia Environmental Finance Authority 108 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.1c - Support Option 2: Seal with rigid material along Option 3: Dense pack cavities through Option 4: Bridge cavities at new ceiling face of stud cavities fastened wood plate level with wrapped batts and SPF Whatever option chosen, test with chemical smoke to verify no leakage 3.1003.1c - Support Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag GA Wx Field Guide Georgia Environmental Finance Authority 109 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.1c - Support Before Spans greater than 24 inches require additional bracing before capping Tools: 1. Saw 2. Drill 3. Tape measure After Support should prevent cap from sagging or moving Materials: 1. Lumber 2. Drywall 3. Fasteners Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase Ensure new bracing is secure by using Once chase is capped, it is now ready GA Wx Field Guide Georgia Environmental Finance Authority 110 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits screws to fasten to joist to be sealed along framing 3.1003.1d - Joint seal 3.1003.1d - Joint seal Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Objective(s): Provide airtight, durable seal that does not move, bend, or sag Before Damage to an old ceiling reveals a newer ceiling below Tools: 1. Spray foam gun 2. Caulk gun After No gaps should remain after sealant is applied Materials: 1. Caulk 2. Spray foam GA Wx Field Guide Georgia Environmental Finance Authority 111 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.1e - Adjacent framing 1 2 Apply sealant to surrounding surfaces Sealant should extend along joists before setting cap in place and into seams at top plates 3 Once cap is set, apply sealant to remaining gaps and along all seams 3.1003.1e - Adjacent framing Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps will be sealed at the top of the dropped ceiling OR All remaining gaps at the top of the chase will be sealed Objective(s): Provide airtight framing from one finished side of the dropped ceiling to the other Before Damage to an older ceiling reveals the new ceiling below After No gaps should remain after spray foam is applied GA Wx Field Guide Georgia Environmental Finance Authority 112 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits Tools: 1. Caulk gun 2. Spray foam gun Materials: 1. Spray foam 2. Caulk sealant 3.1003.1e - Adjacent framing 1 Caulk along all joists before setting cap 2 Use sealant to fill all remaining gaps GA Wx Field Guide Georgia Environmental Finance Authority 113 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.2 - Ceiling Leaks Not Repairable--No Air Barrier Above Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Note: 3.1003.2c - Support Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag Before Spans greater than 24 inches require additional bracing before capping Tools: 1. Drill 2. Saw 3. Tape measure After Support should prevent cap from sagging or moving Materials: 1. Lumber 2. Drywall 3. Fasteners GA Wx Field Guide Georgia Environmental Finance Authority 114 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.2d - Joint seal Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase Ensure new bracing is secure by using Once chase is capped, it is now ready screws to fasten to joist to be sealed along framing 3.1003.2d - Joint seal Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Objective(s): Provide airtight, durable seal that does not move, bend, or sag GA Wx Field Guide Georgia Environmental Finance Authority 115 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.2e - Adjacent framing Before Dropped soffits need to be capped and sealed to prevent leakage Tools: 1. Caulk gun 2. Spray foam gun After No gaps should remain after sealant is applied Materials: 1. Spray foam 2. Caulk 1 2 3 Apply sealant to surrounding surfaces Sealant should extend along surround Once cap is set, apply sealant to before setting cap in place joist and into seams at top plates remaining gaps and along all seams 3.1003.2e - Adjacent framing Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps will be sealed at the top of the dropped ceiling OR GA Wx Field Guide Georgia Environmental Finance Authority 116 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.2e - Adjacent framing All remaining gaps at the top of the chase will be sealed Objective(s): Provide airtight framing from one finished side of the dropped ceiling to the other Before Dropped soffits need to be capped and sealed to prevent leakage Tools: 1. Caulk gun 2. Spray foam gun After No gaps should remain after sealant is applied along adjacent framing Materials: 1. Spray foam 2. Caulk sealant 1 Sealant should have been along all joists and adjacent framing before cap was set 2 Additional sealant should fill in all remaining gaps after cap has been set GA Wx Field Guide Georgia Environmental Finance Authority 117 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3 - Above Closets and Tubs Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Note: 3.1003.3b - Above closets and tubs Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Entire opening will be spanned with rigid material in line with the ceiling level Material will be cut to fit and fastened as required OR Side of stud bays will be sealed with rigid material from bottom of dropped ceiling to top-plate OR Wall below openings will be dense packed OR Wall below openings will be bridged and sealed with SPF Seals will be used that prevent visible air movement using chemical smoke at 50 pascals of pressure difference Objective(s): Prevent air leakage from dropped ceiling to attic GA Wx Field Guide Georgia Environmental Finance Authority 118 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3b - Above closets and tubs Before Unsealed drop soffits over tubs and closets can be a point of leakage Tools: 1. Utility knife 2. Saw 3. Tape measure 4. Insulation machine 5. Drill 6. Caulk gun 7. Spray foam gun 8. Smoke pencil After Capped soffits minimize leakage to and from unconditioned spaces Materials: 1. XPS 2. Drywall 3. Plywood 4. Caulk 5. Spray foam 6. Dense packable insulation 7. Fasteners 8. Wrapped fiberglass batts Option 1, Step 1: Apply sealant to top- Option 1, Step 2: Cover soffit with plates or other relevant surfaces rigid material, such as drywall Option 1, Step 3: Secure the rigid material with screws GA Wx Field Guide Georgia Environmental Finance Authority 119 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3c - Support Option 2: Cover face of stud bay with Option 3: Dense pack cavity through Option 4: Bridge stud bay with rigid material, like XPS or plywood fastened wood cap wrapped fiberglass and spray foam All Options: Test with smoke pencil to verify no air movement 3.1003.3c - Support Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag GA Wx Field Guide Georgia Environmental Finance Authority 120 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3c - Support Before Spans greater than 24 inches require additional bracing before capping Tools: 1. Drill 2. Saw 3. Tape measure After Support should prevent cap from sagging or moving Materials: 1. Lumber 2. Drywall 3. Fasteners Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase Ensure new bracing is secure by using Once chase is capped, it is now ready GA Wx Field Guide Georgia Environmental Finance Authority 121 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits screws to fasten to joist to be sealed along framing 3.1003.3d - Joint seal 3.1003.3d - Joint seal Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Objective(s): Provide airtight, durable seal that does not move, bend, or sag Before Uninsulated soffits can cause leakage to and from unconditioned spaces After No gaps should remain after spray foam is applied Tools: 1. Caulk gun 2. Spray foam gun Materials: 1. Caulk 2. Spray foam GA Wx Field Guide Georgia Environmental Finance Authority 122 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3e - Adjacent framing 1 Caulk surrounding surfaces before setting cap in place 2 3 Sealant should extend along surround Once cap is set, apply sealant to joist and into seams at top plates remaining gaps and along all seams 3.1003.3e - Adjacent framing Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps at the top of the dropped ceiling will be sealed Objective(s): Provide airtight framing from one finished side of the dropped ceiling to the other Before Dropped soffits need to be capped and sealed to prevent leakage Tools: 1. Caulk gun 2. Spray foam gun After No gaps should remain after sealant is applied along adjacent framing Materials: 1. Caulk sealant 2. Spray foam GA Wx Field Guide Georgia Environmental Finance Authority 123 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.3e - Adjacent framing 1 2 3 Apply sealant to surrounding surfaces Sealant should extend along adjacent Additional sealant should fill in all before setting cap in place framing and into seams at top plates remaining gaps after cap has been set GA Wx Field Guide Georgia Environmental Finance Authority 124 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.4 - Dropped Ceilings Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space 3.1003.4c - Support Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Support material will be installed for spans wider than 24", except when air barrier material is rated to span greater distance under load (e.g., wind, insulation) Objective(s): Ensure seal stays in place and does not sag Before Spans greater than 24 inches require additional bracing before capping Tools: 1. Saw 2. Drill 3. Tape measure After Support should prevent cap from sagging or moving Materials: 1. Lumber 2. Drywall 3. Fasteners GA Wx Field Guide Georgia Environmental Finance Authority 125 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.4d - Joint seal Create bracing to support spans larger When supporting from above, apply than 24", either from above or below adhesive between drywall and bracing Bracing can be screwed to drywall before capping chase Ensure new bracing is secure by using Once chase is capped, it is now ready screws to fasten to joist to be sealed along framing 3.1003.4d - Joint seal Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): Continuous seal will be installed around seams, cracks, joints, edges, penetrations, and connections Pre-fabricated units may be used when meeting the desired outcome Objective(s): Provide airtight, durable seal that does not move, bend or sag GA Wx Field Guide Georgia Environmental Finance Authority 126 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.4e - Adjacent framing Before Dropped soffits need to be capped and sealed to prevent leakage Tools: 1. Spray foam gun 2. Caulk gun After No gaps should remain after spray foam is applied Materials: 1. Spray foam 2. Caulk sealant 1 Caulk surrounding surfaces before setting cap in place 2 3 Sealant should extend along surround Once cap is set, apply sealant to joist and into seams at top plates remaining gaps and along all seams 3.1003.4e - Adjacent framing Desired Outcome: Continuous air barrier prevents air leakage and moisture movement between the attic and conditioned space Specification(s): All remaining gaps will be sealed at the top of the dropped ceiling OR GA Wx Field Guide Georgia Environmental Finance Authority 127 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.4e - Adjacent framing All remaining gaps at the top of the chase will be sealed Objective(s): Provide airtight framing from one finished side of the dropped ceiling to the other Before Dropped soffits need to be capped and sealed to prevent leakage Tools: 1. Spray foam gun 2. Caulk gun After No gaps should remain after sealant is applied along adjacent framing Materials: 1. Spray foam 2. Caulk 1 Sealant should have been along all joists and framing before cap was set 2 Additional sealant should fill in all remaining gaps after cap has been set GA Wx Field Guide Georgia Environmental Finance Authority 128 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.6 - Dropped Soffits Desired Outcome: Dropped soffits sealed to prevent air leakage and moisture movement between the attic and conditioned space Note: 3.1003.6b - Soffit general Desired Outcome: Dropped soffits sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Air flow will be blocked at soffit in locations where access allows Objective(s): Provide continuous air barrier across soffit openings Before Accessible drop soffits should be sealed to prevent heat gain/loss After Completely sealed drop soffits and chases minimize heat transfer Tools: 1. Measuring tape 2. Utility knife 3. Caulk gun 4. Spray foam gun 5. Saw 6. Drill Materials: 1. Caulk 2. Spray foam 3. Lumber 4. XPS 5. Fasteners There are a variety of ways to seal soffits. Please examine 3.1003.6c and 3.1003.6d for more GA Wx Field Guide Georgia Environmental Finance Authority 129 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits information. 3.1003.6c - Option 1: bring soffit inside (seal at top) 3.1003.6c - Option 1: bring soffit inside (seal at top) Desired Outcome: Dropped soffits sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Entire opening will be spanned with rigid material in line with the ceiling level Material will be cut to fit and fastened as required Objective(s): Prevent air leakage from wall to attic Reduce opening to what can be sealed with sealant Ensure closure is permanent and supports any load (e.g., wind, insulation) Bring soffit into thermal boundary Before Standard soffits are often open to the attic and uninsulated Tools: 1. Drill/screwdriver 2. Caulk gun After Rigid material encloses the soffit into the conditioned living space Materials: 1. Drywall 2. Sealant GA Wx Field Guide Georgia Environmental Finance Authority 130 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.6d - Option 2: leave soffit outside (seal at bottom or side) 1 Soffits open to the attic need to be sealed to maintain air barrier 2 Apply sealant along top plates 3 Cap soffit with rigid material, such as drywall, cut to size 4 5 Fasten cap with screws to set sealant Insulate over now-capped soffit and create air barrier 3.1003.6d - Option 2: leave soffit outside (seal at bottom or side) Desired Outcome: Dropped soffits sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Each stud bay will be spanned with rigid material will be cut to fit and fastened as required OR Backing at each stud bay will be provided and will be sealed OR Side of stud bays will be sealed with rigid material from bottom of soffit to top-plate GA Wx Field Guide Georgia Environmental Finance Authority 131 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.6d - Option 2: leave soffit outside (seal at bottom or side) OR A sealed rigid barrier will be installed at all transitions Objective(s): Prevent air leakage from wall to soffit Reduce opening to what can be sealed with sealant Ensure soffit is outside of the thermal boundary Before Wall cavities are open to attic and heat transfer due to dropped soffit Tools: 1. Tape measure 2. Utility knife 3. Saw 4. Insulation machine 5. Drill 6. Caulk gun 7. Spray foam gun After Wall cavities capped and air-sealed in one of a variety of options Materials: 1. XPS 2. Drywall 3. Plywood 4. Lumber 5. Fasteners 6. Caulk 7. Spray foam 8. Dense packable insulation 9. Poly-wrapped insulation GA Wx Field Guide Georgia Environmental Finance Authority 132 of 491 June 22, 2018 Air Sealing > Attics > Dropped Ceilings and Soffits 3.1003.6d - Option 2: leave soffit outside (seal at bottom or side) Clear work area of insulation and debris Option 1: Span each stud bay with rigid material at level of soffit Option 2: Backing used to fill bays and sealed with spray foam Option 3: Stud bay will faced with rigid material, fastened and sealed GA Wx Field Guide Georgia Environmental Finance Authority 133 of 491 June 22, 2018 Air Sealing > Attics > Other Ceiling Materials 3.1005.1 - Tongue and Groove Ceilings Desired Outcome: Tongue and groove ceilings sealed to prevent air leakage and moisture movement between the attic and conditioned space Note: 3.1005.1a - Pre-inspection Desired Outcome: Tongue and groove ceilings sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): An inspection will be conducted for mold, water leaks, and water damage before sealing a tongue and groove ceiling Repairs will be completed before work Objective(s): Repair moisture-related issues 3.1005.1b - Backing Desired Outcome: Tongue and groove ceilings sealed to prevent air leakage and moisture movement between the attic and conditioned space Specification(s): Backing will be installed behind tongue and groove ceilings Objective(s): Prevent air leakage and allow for sealants 3.1005.1c - Sealant selection Desired Outcome: Tongue and groove ceilings sealed to prevent air leakage and moisture movement between the attic GA Wx Field Guide Georgia Environmental Finance Authority 134 of 491 June 22, 2018 Air Sealing > Attics > Other Ceiling Materials 3.1005.1c - Sealant selection and conditioned space Specification(s): Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications, according to authority having jurisdiction No sealant will be allowed to be visible in the living space Objective(s): Select permanent sealant Ensure sealant meets or exceeds the performance characteristics of the surrounding materials Ensure ceiling remains aesthetically pleasing GA Wx Field Guide Georgia Environmental Finance Authority 135 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.1 - Double-Hung Wood Windows Desired Outcome: Windows operable and weather tight; improved energy efficiency performance of fenestration 3.1201.1a - Lead paint assessment Desired Outcome: Windows operable and weather tight; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's Renovation, Repair and Painting (RRP) Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera GA Wx Field Guide Georgia Environmental Finance Authority 136 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing EPA RRP certification required to conduct Lead Paint assessment. 3.1201.1d - Replacement sills 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative. 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test positive and turn red 8 Record test results to maintain documentation 3.1201.1d - Replacement sills Desired Outcome: Windows operable and weather tight; improved energy efficiency performance of fenestration GA Wx Field Guide Georgia Environmental Finance Authority 137 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.1d - Replacement sills Specification(s): Beveled sill will be flush with interior wall and sloped to the exterior Seams will be continuously and completely sealed with sealant to the jambs and to the frame Sill will be water-sealed and primed Objective(s): Form a complete seal from the bottom of the lower sash to the sill Maintain operability of the window Allow for drainage to the exterior Before Rot in and under a window sill is often a sign of a bigger problem After Once repaired, this window is less leaky and better supported Tools: 1. Saw 2. Drill 3. Pry bar 4. Sander 5. Caulk gun Materials: 1. Lumber or metal sill 2. Caulk 3. Fasteners 4. Flashing GA Wx Field Guide Georgia Environmental Finance Authority 138 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.1d - Replacement sills Remove sill to determine full extent of Once rotted materials are cut away, Cut new materials flush to surrounding rot and necessary repairs determine sizing of new materials surfaces and pitch toward exterior For exterior repairs, replace flashing Set new sill, then replace and prime trim GA Wx Field Guide Georgia Environmental Finance Authority 139 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.2 - Single-Unit Window and Fixed Frame with Wood Sash Desired Outcome: Windows operable and weather tight; improved energy efficiency performance of fenestration Note: 3.1201.2a - Lead paint assessment Desired Outcome: Windows operable and weather tight; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation GA Wx Field Guide Georgia Environmental Finance Authority 140 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.2a - Lead paint assessment Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera EPA RRP certification required to conduct Lead Paint assessment. 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsule and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test 8 Record test results to maintain GA Wx Field Guide Georgia Environmental Finance Authority 141 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing positive and turn spot red documentation 3.1201.2a - Lead paint assessment GA Wx Field Guide Georgia Environmental Finance Authority 142 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3 - Exterior Doors Desired Outcome: Doors operable and weather tight Note: 3.1201.3a - Lead paint assessment Desired Outcome: Doors operable and weather tight Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/ May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera GA Wx Field Guide Georgia Environmental Finance Authority 143 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3b - Door operation and fit EPA RRP certification required to conduct Lead Paint assessment. 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test positive and turn spot red 8 Record test results to maintain documentation 3.1201.3b - Door operation and fit Desired Outcome: Doors operable and weather tight GA Wx Field Guide Georgia Environmental Finance Authority 144 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3b - Door operation and fit Specification(s): Door will be adjusted to properly fit the jamb and allow for ease of operation (e.g., hinge replacement, re-plane door, door strike adjustment) Objective(s): Ensure proper operation of the door Before Daylight visible around door can indicate it does not hang true and leaks Tools: 1. Screwdriver 2. Planer After With proper adjustment, doors should hang true and minimize leakage Materials: 1. Shims 1 After examining how door hangs, remove door from hinges 2 3 Adjust hinge plates to bring door back Adjust strike plate to allow for secure into true and smooth operation GA Wx Field Guide Georgia Environmental Finance Authority 145 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3c - Air infiltration 4 Rehang door to verify adjustments worked and door operates smoothly 3.1201.3c - Air infiltration Desired Outcome: Doors operable and weather tight Specification(s): Details that reduce air infiltration will be repaired, replaced, sealed, or installed in accordance with State Energy Conservation Code or local code--whichever is more stringent (e.g., weather stripping, door bottoms, trim replacement with foam) Objective(s): Reduce air infiltration Before Daylight visible around an exterior door indicates air infiltration After Weatherstripping and a door bottom minimize air infiltration around doors GA Wx Field Guide Georgia Environmental Finance Authority 146 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3d - Water infiltration Tools: 1. Screwdriver 2. Saw 3. Utility knife 4. Caulk gun 5. Drill 6. Tape measure Materials: 1. Weatherstripping (Q-lan) 2. Door bottom 3. Fasteners 4. Caulk Remove leaky door in order to affix door bottom Measure and trim door, if necessary, Trimming to allow for door bottom to allow for door bottom Cut door bottom to width of door Ensure door bottom fits snugly around Measure doorway for weatherstripping door and fasten into place Notch upper ends of side Weatherstripping should fit snugly into Rehang door and verify fit, operation, weatherstripping to allow for top piece rabbit and against other pieces and lack of air infiltration GA Wx Field Guide Georgia Environmental Finance Authority 147 of 491 June 22, 2018 Air Sealing > Windows and Doors > Maintenance, Repair, and Sealing 3.1201.3d - Water infiltration 3.1201.3d - Water infiltration Desired Outcome: Doors operable and weather tight Specification(s): Details that reduce water infiltration will be repaired, replaced, sealed, or installed (e.g., adjust threshold, caulk jamb to threshold, caulk trim, flashing) Objective(s): Reduce water infiltration Before Daylight visible under exterior doors indicate water can leak in After By adjusting the threshold and sealing along it, water should be kept out Tools: 1. Caulk gun 2. Screwdriver 3. Pry bar Materials: 1. Caulk sealant Adjust threshold to minimize gap and keep water out Caulk along threshold from inside and outside to prevent water infiltration GA Wx Field Guide Georgia Environmental Finance Authority 148 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1 - Fixed Frame with Wood Sash--Older House Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration 3.1202.1a - Lead paint assessment Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/ May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera EPA RRP certification required to conduct Lead Paint assessment. GA Wx Field Guide Georgia Environmental Finance Authority 149 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1b - Broken glass removal 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test positive and turn spot red 8 Record test results to maintain documentation 3.1202.1b - Broken glass removal Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 150 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass Putty and push points will be removed Broken or cracked glass will be removed Objective(s): Safely remove old glass 3.1202.1b - Broken glass removal Before Broken glass with failed repairs needs to be replaced In Progress Large pieces of glass have been removed but sash still needs preparation Tools: 1. Putty knife 2. Chisel 3. Utility knife 4. Shop vaccuum 5. Tape measure Materials: 1. Tape When handling glass, wear heavy work gloves. See also 2.0100.1b for Hand Protection. 1 Wear heavy work gloves when handling glass 2 3 Cut through caulk bead and glazing to Remove old putty and glazing to ease removal expose metal points holding glass in place GA Wx Field Guide Georgia Environmental Finance Authority 151 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1c - Sash preparation 4 With points and glass removed, measure opening for replacement pane 5 Cut replacement glass 1/8" smaller than measured opening 3.1202.1c - Sash preparation Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Opening will be cleaned Objective(s): Prepare opening for new glass Before Remove all debris from sash either by sand paper, knife, or chisel In Progress Mount new glass onto a clean surface Tools: 1. Chisel 2. Utility knife Materials: 1. Sand paper 2. Cleaning solution 3. Rags GA Wx Field Guide Georgia Environmental Finance Authority 152 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1d - New glass installation 1 Debris in the sash can cause new glass to seal improperly 2 3 Check closely to remove all pieces of With sash cleaned, glass will fit broken glass and debris properly and glazing will seal 3.1202.1d - New glass installation Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Glass will be sized 1/8" to 3/16'' smaller than opening to allow for movement of frame Safety glass will be installed in accordance with local codes Push points will be provided on each side to secure glass in frame Glazing compound will be added in accordance with manufacturer specifications Objective(s): Ensure glazing compound will adhere to sash Install, seal, and secure new glass in place Allow glazing compound to harden to ensure secure installation GA Wx Field Guide Georgia Environmental Finance Authority 153 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1d - New glass installation Before With sash prepared, installation of new pane can begin After Replacement glass should be securely fixed with points and glazing Tools: 1. Caulk gun 2. Tape measure 3. Paint brush Materials: 1. Primer 2. Window glazing 3. Push points 4. Shims 5. Replacement glass 6. Tape Wear heavy work gloves when handling glass. See also 2.0100.1b for Hand Protection. 1 Wear heavy work gloves when handling glass 2 3 With broken glass removed, measure Cut replacement glass 1/8" smaller opening for replacement glass than measured opening GA Wx Field Guide Georgia Environmental Finance Authority 154 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.1d - New glass installation 4 Use shims to center glass while installing push points 5 6 With push points in place, glaze to air Secure pane in place with tape to hold seal new glass pane in sash until glazing sets GA Wx Field Guide Georgia Environmental Finance Authority 155 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.2 - Single-Unit Window, Mounted on Rough Opening--Newer House Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration 3.1202.2a - Lead paint assessment Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera GA Wx Field Guide Georgia Environmental Finance Authority 156 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass EPA RRP certification required to conduct Lead Paint assessment. 3.1202.2b - Broken glass removal 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test positive and turn spot red 8 Record test results to maintain documentation 3.1202.2b - Broken glass removal Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration GA Wx Field Guide Georgia Environmental Finance Authority 157 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass Specification(s): Window stops and damaged glass will be removed Objective(s): Safely remove old glass 3.1202.2b - Broken glass removal Before Broken glass with failed repairs needs to be replaced In Progress After larger pieces are removed, the sash still needs preparation Tools: 1. Putty knife 2. Chisel 3. Utility knife 4. Shop vaccuum 5. Tape measure Materials: 1. Tape Wear heavy work gloves when handling glass. See also 2.0100.1b for Hand Protection. 1 Wear heavy work gloves when handling glass 2 Cut through caulk or glazing to simplify removal 3 Remove old putty and glazing from glass to expose pin nails holding glass GA Wx Field Guide Georgia Environmental Finance Authority 158 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.2c - Opening preparation 4 With pins and glass removed, measure opening for replacement pane 5 Cut replacement glass 1/8" smaller than measured opening 3.1202.2c - Opening preparation Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Opening will be cleaned Glazing tape will be removed or replaced Objective(s): Prepare opening for new glass Before Remove all debris, glazing tape, and glass from sash In Progress Sash surface must be clean before mounting new glass GA Wx Field Guide Georgia Environmental Finance Authority 159 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass Tools: 1. Chisel 2. Utility knife Materials: 1. Cleaning solution 2. Rags 3.1202.2d - New glass installation 1 Debris in the sash can cause new glass to seal improperly 2 Check closely to remove and collect all broken glass and debris 3 With sash cleaned, glass will fit properly and glazing will seal 3.1202.2d - New glass installation Desired Outcome: Glass complete and intact; improved energy efficiency performance of fenestration Specification(s): Replacement glass will be sized to original width, height, and depth Stops will be replaced or installed Wood stops will be sealed to glass with appropriate sealant Glass will be selected with comparable tint and coating (color and look) Tempered glass will be installed as required by local codes Glazing compound will be added in accordance with manufacturer specifications Objective(s): Install, seal, and secure new glass in place Allow glazing compound to harden to ensure secure installation GA Wx Field Guide Georgia Environmental Finance Authority 160 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.2d - New glass installation Before With sash prepared, new pane installation can begin After Replaced glass should be held in place while glazing sets Tools: 1. Caulk gun 2. Tape measure 3. Light-duty hammer Materials: 1. Trim Wear heavy work gloves when handling glass. See also 2.0100.1b for Hand Protection. 1 Wear heavy work gloves when handling glass 2 3 With broken glass removed, measure Cut replacement glass 1/8" smaller rough opening for replacement glass than measured opening size GA Wx Field Guide Georgia Environmental Finance Authority 161 of 491 June 22, 2018 Air Sealing > Windows and Doors > Repairing/Replacing Cracked and Broken Glass 3.1202.2d - New glass installation 4 With sash prepared, shim glass to center in opening and reinstall stops 5 Apply window glazing to air seal new pane GA Wx Field Guide Georgia Environmental Finance Authority 162 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.1 - Replacement Window in Existing Window Frame Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration 3.1203.1a - Lead paint assessment Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/ May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera GA Wx Field Guide Georgia Environmental Finance Authority 163 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.1b - Opening preparation EPA RRP certification required to conduct Lead Paint assessment. 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test positive and turn spot red 8 Record test results to maintain documentation 3.1203.1b - Opening preparation Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of GA Wx Field Guide Georgia Environmental Finance Authority 164 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.1c - Replacement window installation fenestration Specification(s): Interior stops, sashes, parting strips, and pulleys will be removed Opening will be cleaned Objective(s): Provide a clean opening for replacement window unit In Progress Scrape off existing caulk and glazing tape. Clean opening and prepare for new window Tools: 1. Stiff bladed scraper or putty knife 2. Single-edge razor blade scraper Written approval from GEFA is required before replacing windows or doors. 3.1203.1c - Replacement window installation Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration Specification(s): Replacement window will be installed in accordance with manufacturer specifications, ensuring that the exterior stops are caulked Objective(s): Ensure replacement window operates properly GA Wx Field Guide Georgia Environmental Finance Authority 165 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement Ensure replacement window has a weather tight fit 3.1203.1c - Replacement window installation In Progress Installing a vinyl replacement window into a double-hung wood window jamb Tools: 1. Utility knife 2. Hammer 3. Sharp-bladed prybar 4. Nail set punch 5. Cordless driver/drill 6. Caulking gun 7. HEPA vacuum (for lead-based paint work) Materials: 1. Window, door, and trim caulk 2. 6-mil polyethylene plastic Written approval from GEFA is required before replacing windows or doors. 1 Using a utility knife, carefully cut the paint and caulk to remove window stops from window jambs. 2 Using a hammer and flat prybar, carefully remove the inside window stops and remove bottom sash 3 Remove the blind stops, bottom sash, pulleys, and ropes. Clean and prepare the opening GA Wx Field Guide Georgia Environmental Finance Authority 166 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.1c - Replacement window installation 4 5 6 Apply caulk to stop molding and install the new window in accordance with manufacturer's instructions. Follow lead safe work practices if lead Wet surfaces before disturbing lead based paint will be disturbed. Cover based paint floors with plastic six feet from work area 7 Using a HEPA vacuum in lead based paint work areas, clean up as you work 8 Dispose of all waste properly. Wrap waste and place in a dumpster GA Wx Field Guide Georgia Environmental Finance Authority 167 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2 - Single-Unit Window, Mounted on Rough Opening--Newer House Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration Note: 3.1203.2a - Lead paint assessment Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration Specification(s): Presence of lead-based paint in pre-1978 homes will be assumed unless testing confirms otherwise EPA's RRP Program Rule (40 CFR Part 745) in pre-1978 homes and proposed changes to this rule (Federal Register/Vol. 75, No. 87/May 6, 2010) will be complied with, to be superseded by any subsequent final rulemaking or any more stringent state or federal standards Objective(s): Protect worker and occupant from potential lead hazards Best Practice In homes built before 1978, test paint before beginning renovation GA Wx Field Guide Georgia Environmental Finance Authority 168 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2a - Lead paint assessment Tools: 1. Note: Mask must be worn during testing 2. LeadCheck test kit 3. Utility knife 4. Camera EPA RRP certification required to conduct Lead Paint assessment. 1 2 3 Clean tools and sample site to prevent Cut sample site at an angle to expose Break capsules and shake to mix contamination all older paint layers reagents. Swab sample site for 30 seconds 4 Check swab for reaction 5 Red indicates lead positive. White is lead negative 6 If negative, verify validity of test with provided calibration card 7 Lead in calibration card should test 8 Record test results to maintain GA Wx Field Guide Georgia Environmental Finance Authority 169 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2b - Opening preparation positive and turn spot red documentation 3.1203.2b - Opening preparation Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration Specification(s): Replacement window will be laid out with trim Exterior trim will be removed or exterior siding will be cut back to fit new window with trim Existing window will be removed Window opening will be flashed in accordance with accepted industry standards Objective(s): Provide a clean and properly flashed opening for replacement window unit Before Single pane window in newer home Tools: 1. Pry bar 2. Utility knife 3. Drill In Progress Window is removed to allow for replacement with double pane unit Materials: 1. Window and door flashing GA Wx Field Guide Georgia Environmental Finance Authority 170 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2c - Replacement unit preparation 1 Single pane window needs to be replaced with double pane 2 Cut through caulk at stops to break seal 3 Remove stops while attempting to keep damage to rough opening to minimum 4 Remove interior trim 5 Remove exterior trim 6 Remove exterior fasteners to free window 7 Remove window from rough opening 8 Clean rough opening to remove old caulk and debris 9 Install flashing along sides and bottom of rough opening 3.1203.2c - Replacement unit preparation Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration GA Wx Field Guide Georgia Environmental Finance Authority 171 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2d - Replacement window installation Specification(s): Mounting detail will be determined based on depth of window and location of window liner Objective(s): Allow for good fit and finish of replacement window Before Single pane window is being removed Tools: 1. Tape measure 2. Utility knife In Progress Double-pane unit replaces previous singlepane one 1 Measure rough opening depth to determine best method of installation 2 3 Clean old sealant off exterior surface Install unit following appropriate detail to allow for flange installation for rough opening and unit depth 3.1203.2d - Replacement window installation Desired Outcome: Replacement window provides weather tight fit; improved energy efficiency performance of fenestration GA Wx Field Guide Georgia Environmental Finance Authority 172 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement 3.1203.2d - Replacement window installation Specification(s): Replacement windows will be installed in accordance with manufacturer specifications and will be integrated with flashing Gaps between the new window and existing frame will be sealed with low-expanding foam Objective(s): Ensure replacement window operates properly Ensure replacement window is weather tight Before Single pane window is being removed to install double pane unit Tools: 1. Utility knife 2. Spray foam gun 3. Drill 4. Hammer 5. Saw After Double pane unit installed with trim in place Materials: 1. Fasteners 2. Flashing 3. Low-expansion spray foam 4. Backer rod 5. Primed trim Install flashing to manufacturer specs Flanges have been folded out to allow Fasten window flange securely around GA Wx Field Guide Georgia Environmental Finance Authority 173 of 491 June 22, 2018 Air Sealing > Windows and Doors > Replacement and industry standards for easy installation 3.1203.2d - Replacement window installation exterior of entire window With window secured in place, check Check that sash locks align properly, Fill interior gap with compressible for proper function indicating window is plumb foam or appropriate sealant Prime and replace interior trim and, if Replace exterior trim and patch needed, sill exterior siding or finish as needed GA Wx Field Guide Georgia Environmental Finance Authority 174 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.1 - Crawl Spaces--Sealing Floor Penetrations Desired Outcome: Air leakage prevented and indoor air quality protected Note: 3.1402.1a - Backing and infill Desired Outcome: Air leakage prevented and indoor air quality protected Specification(s): Backing or infill will be provided as needed to meet the specific characteristics of the selected sealant and the characteristics of the penetration The backing or infill will not bend, sag, or move once installed Objective(s): Ensure resulting closure is permanent and supports any load (e.g., insulation) Ensure sealant does not fall out Before Gaps around floor penetrations, such as plumbing, HVAC, and electrical Tools: 1. Headlamp After Gaps should be sealed to maintain air barrier Materials: 1. Backer rod 2. Sealant GA Wx Field Guide Georgia Environmental Finance Authority 175 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.1b - Sealant selection 1 2 Prepare work space by removing any Infill with backer rod insulation 3 Apply appropriate caulking to ensure backing/infill does not move 4 Visually inspect to verify no gaps remain 3.1402.1b - Sealant selection Desired Outcome: Air leakage prevented and indoor air quality protected Specification(s): Sealants will be used to fill holes no larger than recommended by manufacturer specifications Sealants will be compatible with their intended surfaces Sealants will allow for differential expansion and contraction between dissimilar materials Sealants will be continuous and meet fire barrier specifications, according to authority having jurisdiction Objective(s): Create a permanent seal GA Wx Field Guide Georgia Environmental Finance Authority 176 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.1c - High temperature application Ensure sealant meets or exceeds the performance characteristics of the surrounding materials Bad Practice Avoid sealants that do not allow for expansion between dissimilar materials Tools: 1. Caulk gun 2. Spray foam gun Best Practice Flexible sealants compensate for differential expansion and maintain a seal Materials: 1. Caulk 2. Spray foam Caulking can be used to span gaps up Spray foam can be used to span gaps Check manufacturer specifications to to 1/4 inch up to 3 inches verify spanning capabilities Also check manufacturer specs for incompatibility with intended surfaces GA Wx Field Guide Georgia Environmental Finance Authority 177 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.1c - High temperature application 3.1402.1c - High temperature application Desired Outcome: Air leakage prevented and indoor air quality protected Specification(s): Only non-combustible materials will be used in contact with chimneys, vents, and flues in accordance with authority having jurisdiction Objective(s): Prevent a fire hazard Before Gaps around floor penetrations allow air and moisture movement After Use non-combustible materials, like 26-gauge steel and high-temp caulk Tools: 1. Caulk gun 2. Metal snips 3. Drill/screwdriver Materials: 1. High-temperature caulk 2. 26-gauge steel sheeting 1 Prepare work area by removing any insulation and debris 2 3 Use high-temperature caulking (600F Apply first ring of caulking to match min) shape of opening GA Wx Field Guide Georgia Environmental Finance Authority 178 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.1c - High temperature application 4 Apply second ring of caulking to size and shape of rigid material 5 6 Fasten rigid material (26-gauge steel) Fasten rigid material to cover and apply additional caulking penetration and seal against flue with caulk GA Wx Field Guide Georgia Environmental Finance Authority 179 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.3 - Closed Crawl Spaces--Air Sealing Exterior Wall Desired Outcome: Well-sealed exterior wall prevents leakage and pests 3.1402.3a - Seal penetrations Desired Outcome: Well-sealed exterior wall prevents leakage and pests Specification(s): Penetrations will be sealed with a durable material A minimum expected service life of 10 years will be ensured Objective(s): Prevent air and moisture penetration into crawl space Before Light showing through penetration in exterior block wall After Sealed with durable material to prevent air and water leakage, and pests Tools: 1. Caulk gun 2. Spray foam gun 3. Metal snips 4. Drill Materials: 1. Caulk 2. Sprayfoam 3. Metal mesh 4. Fasteners GA Wx Field Guide Georgia Environmental Finance Authority 180 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.3b - Pest exclusion 1 Measure holes to determine the best backing and fill strategy 2 In holes larger than 1/4 inch, wire mesh should be used for backing 3 Sprayfoam or caulk seal the hole 3.1402.3b - Pest exclusion Desired Outcome: Well-sealed exterior wall prevents leakage and pests Specification(s): If penetration is greater than inches, caulking, steel wool, or other pest-proof material will be used to fill the penetration before sealing Objective(s): Prevent pest entry Before After For bigger holes, extra steps should be taken Choose the backing and infill strategy that to keep out pests works best for the hole size Tools: 1. Caulk gun 2. Sprayfoam gun 3. Metal snips 4. Drill Materials: 1. Caulk 2. Sprayfoam 3. Metal mesh 4. Rigid backing GA Wx Field Guide Georgia Environmental Finance Authority 181 of 491 June 22, 2018 Air Sealing > Basements and Crawl Spaces > Crawl Spaces 3.1402.3b - Pest exclusion For holes larger than 1/4", rigid Metal mesh or other rigid materials backing should be used to keep pests should be cut to fill the space out Sprayfoam can be used to seal the hole and hold mesh in place GA Wx Field Guide Georgia Environmental Finance Authority 182 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1 - Penetrations, Cracks, and Doors Between Garage and House Desired Outcome: Openings from garage sealed to prevent leakage 3.1501.1a - Penetrations Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): All lighting fixtures, wiring, plumbing, venting, ducting, and gas piping penetrations will be sealed Objective(s): Prevent air leakage and pollutant entry Before Penetrations between the garage and house can leak hazardous fumes After Seal penetrations to minimize risks and air leakage Tools: 1. Caulk gun 2. Reusable spary foam gun 3. Spray bottle (misting surfaces will improve spray foam adhesion and cure) Materials: 1. Backer Rod 2. Caulk 3. Spray foam 3.1501.1b - Ductwork Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 183 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1b - Ductwork Openings from garage sealed to prevent leakage Specification(s): All joints and connections in ductwork will be fastened and sealed with UL 181B or 181B-M welds, gaskets, adhesive mastics, or mastic-plus- embedded-fabric systems Objective(s): Prevent air leakage and pollutant entry Before Unsealed joints and connections need to be sealed to prevent health risks. After Sealed ductwork connections help prevent leakage. Tools: 1. Disposable brushes 2. Utility knife 3. Cordless driver/drill and 1/4" nut driver bits 4. Zip tie tensioning tool Materials: 1. Fiberglass mesh tape 2. Mastic duct sealant 3. Zip ties 4. Zip-in pointed sheet metal screws Fasten metal to metal joints with at least three equally spaced screw around the joint. Use fiberglass mesh tape on cracks 1/4" and larger. Apply mastic sealant at least as thick as a nickel on all seams and gores. 1 2 3 GA Wx Field Guide Georgia Environmental Finance Authority 184 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1c - Cracks Prepare work area by assessing any Wrap joint with fiberglass mesh tape. Apply UL 181 mastic to seal joint. safety concerns. 3.1501.1c - Cracks Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): All cracks in house and garage separation wall will be sealed, including cracks between mud sill, rim joists, subfloors, and bottom of gypsum board, ensuring the air sealing enhances the integrity of the fire resistance construction of that wall All cracks in ceiling surfaces will be sealed Objective(s): Prevent air leakage and pollutant entry Before Cracks in shared walls of attached garages are a potential leakage site Materials: 1. Sprayfoam 2. Fire-block caulk After Air sealing reduces pollutant entry, but does not diminish fire resistance GA Wx Field Guide Georgia Environmental Finance Authority 185 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1d - Garage to house door Determine which walls are shared between garage and living space Inspect wall and ceiling for cracks and Clear work area of obstacles and penetrations debris Apply appropriate sealant dependent Ensure sealant does not decrease upon size of crack and location wall's fire resistance 3.1501.1d - Garage to house door Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): Weather stripping, door sweep, and threshold will be installed to stop air leakage Objective(s): Prevent air leakage and pollutant entry GA Wx Field Guide Georgia Environmental Finance Authority 186 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1d - Garage to house door Before Daylight visible under door to garage indicates leakage Tools: 1. Caulk gun 2. Screwdriver 3. Utility knife 4. Hacksaw 5. Saw 6. Tape measure 7. Drill 8. Planer After Door sweep, with weatherstripping, will minimize air exchange with garage Materials: 1. Weatherstripping (Q-lan) 2. Door sweep 3. Caulk 4. Fasteners Remove door for access to work space and to install sweep Measure for weatherstripping around Install weatherstripping into rabbit door around door GA Wx Field Guide Georgia Environmental Finance Authority 187 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1e - Glass Corners of weatherstripping should be Adjust threshold to minimize snug and secure contaminant and water infiltration Caulk along threshold to minimize water and contaminant infiltration Cut door sweep to width of the door Ensure door sweep fits tightly against Rehang door to verify snug fit and bottom of door and fasten in place smooth operation 3.1501.1e - Glass Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): Broken glass panes in doors will be replaced, pointed, and glazed where needed Objective(s): Prevent air leakage and pollutant entry GA Wx Field Guide Georgia Environmental Finance Authority 188 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1e - Glass Before Broken glass in exterior and garage doors allows for leakage. Replace it Tools: 1. Hammer 2. Pry bar 3. Caulk gun 4. Tape measure After With new glass in place, take care to tightly seal and replace stops Materials: 1. Brads 2. Caulk 3. Glazing 4. New glass cut to size of rough opening Remove stops, taking care not to damage them Remove broken glass and clean old sealant and glazing from rough opening Measure rough opening and cut new glass to size GA Wx Field Guide Georgia Environmental Finance Authority 189 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1f - Carbon monoxide (CO) alarm Apply sealant to rough opening and place new glass Seal glass into place from inside as well to ensure no air infiltration Replace stops and rehang door 3.1501.1f - Carbon monoxide (CO) alarm Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): CO alarms will be installed in accordance with ASHRAE 62.2, applicable codes and manufacturer specifications Objective(s): Warn occupants of CO exposure from attached garage Best Practice Carbon monoxide alarms should be installed throughout the house Best Practice Occupants should be alerted to CO alarm locations and maintenance CO alarms should be installed one per floor and near sleeping areas. 3.1501.1g - Occupant education Desired Outcome: Openings from garage sealed to prevent leakage Specification(s): Occupant will be educated on need to keep door from garage to house closed and not to warm up vehicles or use any gas engine appliances or grills in the garage, even if the main door is left open GA Wx Field Guide Georgia Environmental Finance Authority 190 of 491 June 22, 2018 Air Sealing > Attached Garages > Garage Openings 3.1501.1g - Occupant education Objective(s): Reduce risk of CO poisoning inside of garage and adjacent rooms Unsafe Communicate importance of never running vehicles in a closed garage Best Practice Speak with occupant about hazards of using gas appliances in the garage Occupants should never run vehicles Occupants should not light in a closed garage combustibles inside garages Speak with occupant about hazards of using gas appliances in the garage GA Wx Field Guide Georgia Environmental Finance Authority 191 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation 3.1601.1 - Preparation and Mechanical Fastening Desired Outcome: Ducts and plenums properly fastened to prevent leakage 3.1601.1a - Preparation Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Type and R-value of existing duct insulation (e.g., fiberglass, stone wool, asbestos) will be identified as will the location of vapor retarders, if any If asbestos insulation was used, it will not be disturbed; consult with an asbestos abatement expert for removal Surrounding insulation will be cleared to expose joints being sealed Duct surface to accept sealant will be cleaned Insulation will be returned or replaced with equivalent R-value Objective(s): Gain access while maintaining insulation value Achieve proper adhesion for airtight seal 3.1601.1b - Metal to metal Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Round ducts will be mechanically fastened to maintain alignment Other shaped ducts will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes Objective(s): GA Wx Field Guide Georgia Environmental Finance Authority 192 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation Ensure durable joints 3.1601.1c - Flex to metal Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Joints will be fastened with tie bands using a tie band tensioning tool Objective(s): Ensure durable joints 3.1601.1d - Duct board to duct board Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Joints will be fastened with clinch stapler Objective(s): Ensure durable joints 3.1601.1e - Flexible duct to duct board Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Metal take-off collar will be used and attached in accordance with IRC Objective(s): Ensure durable joints 3.1601.1c - Flex to metal GA Wx Field Guide Georgia Environmental Finance Authority 193 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation 3.1601.1g - Duct board plenum to air handler cabinet 3.1601.1f - Metal plenum to air handler cabinet Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Plenum will be mechanically fastened Objective(s): Ensure durable joints 3.1601.1g - Duct board plenum to air handler cabinet Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Termination bar or metal strip will be fastened with screws Duct board will be installed between the screw and the termination bar Objective(s): Ensure durable joints 3.1601.1h - Boot to wood Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Screws or nails will be used to fasten boot to wood Objective(s): Ensure durable joints 3.1601.1i - Boot to gypsum Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 194 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation Ducts and plenums properly fastened to prevent leakage Specification(s): Boot hanger will be fastened to adjacent framing with screws or nails Boot will be connected to boot hanger with screws Integral snap boots will be installed Objective(s): Ensure durable joints 3.1601.1j - Flex to duct board 3.1601.1j - Flex to duct board Desired Outcome: Ducts and plenums properly fastened to prevent leakage Specification(s): Take-offs will be in accordance with IRC and applicable local code Objective(s): Ensure durable joints GA Wx Field Guide Georgia Environmental Finance Authority 195 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation 3.1601.2 - Duct Preparation for SPF Application Desired Outcome: Condition of ductwork identified and necessary repairs made in preparation for spray polyurethane foam (SPF) application 3.1601.2a - Inspection Desired Outcome: Condition of ductwork identified and necessary repairs made in preparation for spray polyurethane foam (SPF) application Specification(s): All exposed ductwork in unconditioned spaces (e.g., attics, basements, crawl spaces) will be inspected Broken joints or large cracks, gaps, or holes will be identified Type of ductwork (e.g., metal, duct board, flex duct) will be identified Type and R-value of existing duct insulation (e.g., fiberglass, stone wool, asbestos) will be identified as will the location of vapor retarders, if any If asbestos insulation was used, it will not be disturbed; consult with an asbestos abatement expert for removal Loose fitting or damaged fiberglass or stone wool insulation will be removed using proper safety equipment Necessary clearances for installation of SPF will be ensured Objective(s): Identify damaged ductwork in need of repair Identify type and R-value of existing insulation 3.1601.2b - Repair Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 196 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation 3.1601.2b - Repair Condition of ductwork identified and necessary repairs made in preparation for spray polyurethane foam (SPF) application Specification(s): Broken or missing ductwork will be repaired or replaced All cracks, gaps, or holes greater than " will be taped or sealed as feasible Dust, dirt, and grease will be removed from exterior surfaces of ducts Objective(s): Cover openings in ducts to prevent SPF from entering the interior of the duct Ensure surfaces of duct are clean to promote proper adhesion of SPF GA Wx Field Guide Georgia Environmental Finance Authority 197 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation 3.1601.3 - Support Desired Outcome: Ducts and plenums properly supported 3.1601.3a - Support (applies to all duct types) Desired Outcome: Ducts and plenums properly supported Specification(s): Flexible and duct board ducts and plenums will be supported every 4' using a minimum of 1 " wide material Support materials will be applied in a way that does not crimp ductwork or cause the interior dimensions of the ductwork to be less than specified (e.g., ceiling, framing, strapping); duct support must be installed in accordance with authority having jurisdiction Metal ducts will be supported by 1/2 inch wide eighteen gauge metal straps or 12-gauge galvanized wire at intervals not exceeding 10 feet or other approved means Objective(s): Eliminate falling and sagging Before Ducts should not be allowed to droop and drag, adding distance to run After Properly supported ducts minimize heat loss and and maximize duct run GA Wx Field Guide Georgia Environmental Finance Authority 198 of 491 June 22, 2018 Air Sealing > Ducts > Duct Preparation Tools: 1. Metal snips 2. Utility knife 3. Drill 4. Stapler 3.1601.3a - Support (applies to all duct types) Materials: 1. 18 gauge metal strap (at least 1/2" wide) 2. 12 gauge galvinized wire 3. Fabric support straps (at least 1 1/2" wide) 4. Staples 5. Fasteners BAD: Make sure supports DO NOT compress insulation or duct Flex ducts should have supports no less than every 4 feet Durable strap should be at least 1 1/2 inches wide Metal ducts should be supported every Metal straps should be at least 18 10 feet or less with straps or wire gauge and 1/2 inch wide Metal wire should be at least 12 gauge and galvanized GA Wx Field Guide Georgia Environmental Finance Authority 199 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.1 - Air Sealing Duct System Desired Outcome: Ducts and plenums sealed to prevent leakage 3.1602.1c - Existing component to existing component Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): Seams, cracks, joints, holes, and penetrations less than " will be sealed using UL 181 fiberembedded mastic Seams, cracks, joints, holes, and penetrations between " and " will be sealed in two stages: * They will be backed using temporary tape (e.g., foil tape) as a support prior to sealing* They will be sealed using fiberglass mesh and mastic Seams, cracks, joints, holes, and penetrations larger than " will be repaired using rigid duct material Mastic will overlap repair joint or existing temporary tape by at least 1" on all sides Objective(s): Eliminate air leakage into or out of ducts and plenums Ensure adhesion of primary seal (fiberglass mesh and mastic) to the duct Reinforce seal Support fiberglass mesh and mastic during curing GA Wx Field Guide Georgia Environmental Finance Authority 200 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.1c - Existing component to existing component Before Unsealed joints and connections need to be sealed to prevent health risks After Sealed ductwork connections help prevent leakage Materials: 1. Mastic 2. Fiberglass mesh tape 1 Prepare work area by assessing any safety concerns 2 3 Wrap joint with fiberglass mesh tape Apply UL 181 mastic to seal joint GA Wx Field Guide Georgia Environmental Finance Authority 201 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.2 - Duct Spray Polyurethane Foam (SPF) Installation Desired Outcome: Exposed ductwork in unconditioned spaces insulated and sealed 3.1602.2a - Installation Desired Outcome: Exposed ductwork in unconditioned spaces insulated and sealed Specification(s): Insulation will be installed according to manufacturer specifications and all provisions of the IRC SPF will be applied to desired thickness, using pass thickness maximum as indicated by manufacturer Sufficient insulation will be applied to all joints and around all penetrations to the conditioned space through walls, floors, and ceilings SPF will be covered with proper fire protective coverings or coatings appropriate for location of ductwork and type of foam used and provisions of the IRC and local codes If ducts are used for air-conditioning, an appropriate vapor retarder will be applied on the SPF if open-cell SPF used If 2" or more of closed-cell SPF is used, follow manufacturer specification to determine if additional vapor retarder is needed The flame spread index will not be greater than 25 and the smoke- developed index is not greater than 450 at the specified installed thickness The foam plastic will be protected with an ignition barrier Objective(s): Insulate and seal all exposed ductwork in unconditioned spaces Manage moisture condensation on ductwork that carry cooled air in warm, moist climates Provide adequate fire protection for exposed SPF GA Wx Field Guide Georgia Environmental Finance Authority 202 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.3 - Proprietary Spray Application Desired Outcome: Ducts and plenums sealed to prevent leakage 3.1602.3a - Internal or external application Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): Installation of sealant will be applied in accordance with manufacturer specifications as well as UL 181M, NFPA 90A, and NFPA 90B Objective(s): Reduce duct leakage GA Wx Field Guide Georgia Environmental Finance Authority 203 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4 - Air Sealing System Components Desired Outcome: Ducts and plenums sealed to prevent leakage 3.1602.4a - Duct boot to interior surface Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): All gaps between boot and interior surface that defines conditioned space will be air sealed Gypsum edge will be wetted before applying water-based sealant Sealants will be continuous and be in accordance with IRC Objective(s): Prevent air leakage Prevent a fire hazard Before Gaps around duct boots allow for leakage to and from the attic After Use a mesh in mastic system to seal duct boot to interior surface Tools: 1. Utility knife 2. Spray bottle 3. Putty knife 4. Reusable spray foam gun 5. Caulking gun Materials: 1. Mastic 2. Mesh tape 3. Caulk GA Wx Field Guide Georgia Environmental Finance Authority 204 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4b - Wooden plenums and building cavities 1 2 Remove grill to expose duct boot and Wet the edges of the drywall to gaps ensure a good bond 3 Cut mesh tape to fit around duct boot and cover gaps 4 5 Apply mastic over mesh tape to create Once mastic is set, grill can be heat resistant, durable bond replaced and mastic should not show 3.1602.4b - Wooden plenums and building cavities Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): Accessible connections and joints will be made airtight using approved material Objective(s): Ensure ducts and plenums will not leak GA Wx Field Guide Georgia Environmental Finance Authority 205 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4b - Wooden plenums and building cavities Before Locate unsealed ducts constructed from building cavities After Return plenum lined with fiberglass duct board and sealed with mastic Tools: 1. disposable brushes 2. tape measure 3. utility knife 4. rubber gloves 5. framing square or T-square 6. tin snips Materials: 1. mastic 2. fiberglass duct board 3. UL 181 listed mastic tape 4. screws 5. sheet metal DO NOT use spray polyurethane foam. Use approved materials to seal ductwork; cover organic materials with airtight, non-organic material such as mastic, metal, or duct board. From NFPA 90B 4.2.1.3: "The interior of combustible ducts shall be lined with noncombustible material at points where there might be danger from incandescent particles dropped through the register or heater, such as directly under floor registers, the bottom of vertical ducts, or heaters having a bottom return." From NFPA 90B 4.3.1.1: "Duct coverings, duct linings, and tapes used in duct systems shall have a maximum flame spread index of 25 without evidence of continued progressive combustion and a maximum smoke developed index of 50 when tested in accordance with ASTM E 84 or ANSI/UL 723..." GA Wx Field Guide Georgia Environmental Finance Authority 206 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4c - Air handler cabinet 1 2 3 Identify building cavities used as ducts Seal holes and penetrations and line Cut and install fiberglass duct board to the duct with airtight material create an airtight duct 4 Seal seams in duct board and site-built ducts with mastic 3.1602.4c - Air handler cabinet Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): Joints will be closed and cracks and holes not needed for proper function of unit will be sealed using removable sealant (e.g., foil tape) or in accordance with the original equipment manufacturer directions (if available) Objective(s): Reduce air leakage while maintaining accessibility GA Wx Field Guide Georgia Environmental Finance Authority 207 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4d - Filter slot Before Unnecessary holes in the air handler cabinet need to be sealed After Use removable foil tape to seal holes Materials: 1. Foil tape 1 Unnecessary holes in the air handler cabinet should be sealed 2 Removable foil tape should be used to seal 3 Fully cover holes with tape to seal completely 3.1602.4d - Filter slot Desired Outcome: Ducts and plenums sealed to prevent leakage Specification(s): A pre-manufactured or site manufactured durable filter slot cover will be installed Objective(s): Reduce air leakage while maintaining accessibility GA Wx Field Guide Georgia Environmental Finance Authority 208 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.4d - Filter slot Before Uncovered filter slots are a point of leakage After Filter slots should be covered GA Wx Field Guide Georgia Environmental Finance Authority 209 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.5 - Return--Framed Platform Desired Outcome: The return duct installed to prevent air leakage 3.1602.5a - Preparation Desired Outcome: The return duct installed to prevent air leakage Specification(s): Debris and dirt will be cleaned out of the return platform Objective(s): Allow for the application of rigid materials and sealants Before Dirty, unsealed return platform needs to be cleaned out before sealing Tools: 1. Shop vacuum In Progress Vacuum out debris and dirt from the return to prepare work area 3.1602.5b - Infill and backing Desired Outcome: The return duct installed to prevent air leakage Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 210 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.5b - Infill and backing Backing or infill will be provided as needed to meet the specific characteristics of the selected material and the characteristics of the open space Backing or infill will not bend, sag, or move once installed Material will be rated for use in return duct systems Objective(s): Minimize hole size to ensure successful use of sealant Ensure closure is permanent and supports any load (e.g., return air pressure) Ensure sealant does not fall out Before Leakage from air return into wall cavities should be eliminated Tools: 1. Tape measure 2. Utility knife 3. Drill 4. Caulk gun In Progress Only materials rated for use in higher temperature areas should be used Materials: 1. Fiberglass duct board 2. Drywall 3. Fire-resistant caulk 4. Fasteners GA Wx Field Guide Georgia Environmental Finance Authority 211 of 491 June 22, 2018 Air Sealing > Ducts > Duct Sealing 3.1602.5c - Sealant selection DO NOT use EPS foam board or XPS foam board in air returns due to proximity to combustion appliances 3.1602.5c - Sealant selection Desired Outcome: The return duct installed to prevent air leakage Specification(s): Sealants will be continuous and be in accordance with IRC Objective(s): Select permanent sealant Ensure sealant meets or exceeds the performance characteristics of the surrounding materials Best Practice Best Practice Sealants, like mesh and UL 181 mastic, meet Caulk sealants will be continuous IRC, ASTM, and UL specs Tools: 1. Caulk gun 2. Utility knife 3. Taping knife Materials: 1. Fiberglass mesh 2. Siliconized caulk 3. UL 181 mastic Paraphrased from 2012 IRC R302.9: Wall and ceiling finishes will have a flame spread index of 200 or less and a smoke-developed index of 450 or less GA Wx Field Guide Georgia Environmental Finance Authority 212 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.1 - Non-Insulation Contact (IC) Recessed Light Desired Outcome: Ensure safety from fire and prevent air leakage 4.1001.1a - Air barrier system Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): A fire-rated air barrier system (i.e., equivalent to 5/8 fire code gypsum wallboard) will be used to separate non- IC rated recessed lights from insulation, using one of the methods below: A fire-rated airtight closure taller than surrounding attic insulation will be placed over non- IC rated recessed lights OR The non- IC rated light fixture will be replaced with an airtight IC - rated fixture or insert OR The fixture(s) may be replaced with surface mounted fixture and opening sealed ORAir sealing measures as approved by the authority having jurisdiction Objective(s): Prevent a fire hazard Prevent air leakage through fixture GA Wx Field Guide Georgia Environmental Finance Authority 213 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.1b - Enclosure top Before Non-IC rated recessed light fixtures should be dammed from insulation Tools: 1. Utility knife 2. Tape measure After Sealed box around non-IC light should be taller than surrounding insulation Materials: 1. 5/8" fire-rated Type X drywall 2. Fire-rated caulk sealant 3. OR approved fire-rated air barrier system/material 1 2 3 Construct box to maintain a minimum of 3" clearance to combustible materials Sealed box should be constructed of fire-rated drywall OR non-IC can light can be replaced with airtight, IC-rated recessed light 4.1001.1b - Enclosure top Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): The top-fire rated enclosure material will have an R-value of 0.56 or less The top of the enclosure will be left free of insulation GA Wx Field Guide Georgia Environmental Finance Authority 214 of 491 June 22, 2018 Insulation > Attics > General Preparation Objective(s): Prevent heat build up 4.1001.1c - Clearance Before Non-IC rated recessed lights create excess heat and are a fire risk Tools: 1. Utility knife 2. Caulk gun After Once dammed from insulation, it should still not have insulation on top Materials: 1. Drywall 4.1001.1c - Clearance Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): The entire closure will maintain a 3" clearance between the closure and the fixture including wiring, box, and ballast Objective(s): Keep an air space around the fixture GA Wx Field Guide Georgia Environmental Finance Authority 215 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.1d - Sealants and weather stripping Before Non-IC rated recessed lights produce excess heat and can be a fire risk After A 3 inch clearance should be kept from boxing materials Tools: 1. Utility knife 2. Tape measure 3. Caulk gun Materials: 1. Fire-rated sealant 2. Drywall 4.1001.1d - Sealants and weather stripping Desired Outcome: Ensure safety from fire and prevent air leakage Specification(s): Caulk, mastic, or foam will be used on all edges, gaps, cracks, holes, and penetrations of closure material only Objective(s): To prevent air leakage, completely adhere the sealant to all surfaces to be sealed GA Wx Field Guide Georgia Environmental Finance Authority 216 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.1d - Sealants and weather stripping Before Non-IC recessed light fixtures produce excess heat and can be a fire risk Tools: 1. Caulk gun 2. Spray foam gun 3. Putty knife After Entire box should be sealed, but none should come in contact with light Materials: 1. Fire-rated silicone caulk 2. UL-181 mastic 3. Spray foam GA Wx Field Guide Georgia Environmental Finance Authority 217 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.2 - Knob and Tube Wiring Desired Outcome: Insulation kept away from contact with live wiring Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 4.1001.2a - Identifying knob and tube wiring Desired Outcome: Insulation kept away from contact with live wiring Specification(s): Contractor, assessor, auditor, or similar will inspect and assess the house to identify knob and tube wiring Objective(s): Determine if knob and tube wiring exists Unsafe Identify knob and tube wiring in homes to insulate properly and safely GA Wx Field Guide Georgia Environmental Finance Authority 218 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.2b - Testing to determine if live More knob & tube wiring Knob & tube wiring again 4.1001.2b - Testing to determine if live Desired Outcome: Insulation kept away from contact with live wiring Specification(s): Non-contact testing method will be used to identify live wiring Objective(s): Ensure safety of occupants, workers, and house Plan where remediation is needed Unsafe Knob & tube wiring needs to be tested to determine if still live. Red=live Tools: 1. Non-contact wire tester Safe Live wiring should be dammed or professionally disabled before insulating GA Wx Field Guide Georgia Environmental Finance Authority 219 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.2c - Isolate or replace 4.1001.2c - Isolate or replace Desired Outcome: Insulation kept away from contact with live wiring Specification(s): Proper clearance will be maintained around live knob and tube as required by the National Electrical Code ( NEC ) or authority having jurisdiction When required, a dam that does not cover the top will be created to separate insulation from the wire path Objective(s): Ensure work can be completed safely Protect occupant and house Ensure future work can be done safely Prevent the overheating of the wiring Before Knob & tube wiring radiates heat and cannot be insulated over After Before insulation, wiring should be dammed or disabled and replaced Tools: 1. Non-contact wire tester 2. Drywall 3. Plywood 4. Saw 5. Drill 6. Tape measure Materials: 1. Fasteners 2. Romex as needed GA Wx Field Guide Georgia Environmental Finance Authority 220 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.2c - Isolate or replace NEC guidelines and local jurisdictions often closely prescribe the treatment of knob & tube wiring. Check your local codes. If electrician determines wiring is safe and keeps it active, isolate wires To isolate, dams higher than intended Warning of knob & tube should be insulation depth should be installed posted at all entrances to related spaces Warning signs should encourage the Some jurisdictions require warning use of certified electrician for repairs signs in Spanish as well If knob & tube can be replaced, all existent k&t should be disabled Many electricians will removed Modern wiring should replace all knob exposed wires to prevent reactivation & tube GA Wx Field Guide Georgia Environmental Finance Authority 221 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.3 - Fireplace Chimney and Combustion Flue Vents Desired Outcome: Combustible materials kept away from combustion sources 4.1001.3a - Verify attic prep Desired Outcome: Combustible materials kept away from combustion sources Specification(s): Holes, penetrations, and bypasses will be sealed Dams will be fixed in places that maintain required clearance Objective(s): Prevent air leakage Ensure insulation dams maintain clearance Before Gaps and penetrations in attic need to be sealed to maintain air barrier Tools: 1. Metal snips 2. Caulk gun 3. Fasteners After Chimneys, flues, and light fixtures should be dammed to prevent fire Materials: 1. 26-gauge steel sheeting 2. High temperature caulk 3. Caulk 4. Backer rod 5. Spray foam GA Wx Field Guide Georgia Environmental Finance Authority 222 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.3b - Required clearance Gaps around flues and penetrations need to be sealed before insulating High temperature caulk should be used for flues and chimneys 26-gauge steel should be used to construct seals and dams on flues Only construct dam after sealing has Dammed chimneys, flues and light been completed properly fixtures prevent fires 4.1001.3b - Required clearance Desired Outcome: Combustible materials kept away from combustion sources Specification(s): A rigid dam having a height to ensure a 3" clearance area free of insulation or combustibles between combustion flue vent and dam, unless the flue vent is listed for a lesser clearance Objective(s): Ensure dam material does not bend, move, or sag Prevent a fire hazard GA Wx Field Guide Georgia Environmental Finance Authority 223 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.3c - Safety Before To prevent fire hazards, flues, chimneys, and light fixtures require dams After Observe a 3 inch minimum clearance for dams around flues and chimneys Tools: 1. Metal snips Materials: 1. 26-gauge steel sheeting 2. Fasteners 4.1001.3c - Safety Desired Outcome: Combustible materials kept away from combustion sources Specification(s): Insulation will not be allowed between a heat-generating appliance and a dam unless material is rated for contact with heat generating sources Objective(s): Prevent a fire hazard Before Dams around flues, chimneys, and light fixtures should hold back insulation After Clear dams of any loose insulation in order to minimize risk of fire GA Wx Field Guide Georgia Environmental Finance Authority 224 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.3d - Occupant education 4.1001.3d - Occupant education Desired Outcome: Combustible materials kept away from combustion sources Specification(s): Documentation of material and R-value will be provided to occupant Objective(s): Provide occupant with documentation of installation Best Practice Staple insulation card in an easily viewed location in the attic Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Staple the insulation card in a prominent location in the attic GA Wx Field Guide Georgia Environmental Finance Authority 225 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.4 - Vented Eave or Soffit Baffles Desired Outcome: Attic ventilation meets code requirements and insulation is protected from wind washing Note: 4.1001.4a - Installation Desired Outcome: Attic ventilation meets code requirements and insulation is protected from wind washing Specification(s): If soffit venting or eave venting is present, baffles will be mechanically fastened to block wind entry into insulation or to prevent insulation from blowing back into the attic If soffit venting or eave venting is present, baffles will be installed to maintain clearance between the roof deck and baffle in accordance with manufacturer specifications Installation will allow for the highest possible R-value above the top plate of the exterior wall Objective(s): Ensure insulation R-value is not reduced Maintain attic ventilation Before Insulation should not block vented eaves Tools: 1. Stapler After Baffles installed in vented attics to allow air flow past insulation Materials: 1. Baffles 2. Staples GA Wx Field Guide Georgia Environmental Finance Authority 226 of 491 June 22, 2018 Insulation > Attics > General Preparation 4.1001.4a - Installation Allow a standard two inch gap for air flow through eave Baffles should be securely fastened to Once baffles are properly installed, prevent movement over time insulation can be placed against them Baffles also hold insulation from falling into eave GA Wx Field Guide Georgia Environmental Finance Authority 227 of 491 June 22, 2018 Insulation > Attics > Attic Ceilings 4.1003.3 - Unvented Flat Roof with Existing Insulation Desired Outcome: Insulation reduces heat flow through unvented roof 4.1003.3a - Ventilation Desired Outcome: Insulation reduces heat flow through unvented roof Specification(s): Code compliant ventilation will be installed before insulation Objective(s): Reduce possibility of moisture issues Before Unvented flat roofs should have venting installed Tools: 1. Saw 2. Grinder 3. Metal snips 4. Drill After Vents in the space below the roof help maintain proper air flow Materials: 1. Metal lath 2. Stucco GA Wx Field Guide Georgia Environmental Finance Authority 228 of 491 June 22, 2018 Insulation > Attics > Attic Ceilings 4.1003.3b - Installation Unvented flat roofs should have venting installed Vents in the space below the roof help maintain proper air flow Mushroom capped vents in the roof are equally important to air flow 4.1003.3b - Installation Desired Outcome: Insulation reduces heat flow through unvented roof Specification(s): Roof cavities will be blown with loose fill insulation (or roof cavities will be dense packed with insulation) without gaps, voids, compressions, misalignments, or wind intrusions Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value Before Vent reveals attic is insulated with old rug -not adequate. In Progress Attic will be dense packed to r-value specified on Work Order. GA Wx Field Guide Georgia Environmental Finance Authority 229 of 491 June 22, 2018 Insulation > Attics > Attic Ceilings 4.1003.3c - Occupant education Tools: 1. Insulation machine Materials: 1. Loose fillable or dense packable insulation 4.1003.3c - Occupant education Desired Outcome: Insulation reduces heat flow through unvented roof Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and minimum settled thickness Number of bags installed in accordance with manufacturer specifications Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 Best Practice Provide occupant with documentation of and about insulation installed GA Wx Field Guide Georgia Environmental Finance Authority 230 of 491 June 22, 2018 Insulation > Attics > Attic Ceilings 4.1003.3c - Occupant education Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 231 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.1 - Preparation for Dense Packing Desired Outcome: Airtight cavity and insulated knee wall 4.1004.1a - Backing Desired Outcome: Airtight cavity and insulated knee wall Specification(s): All knee walls will have top and bottom plate or blockers installed using rigid materials When knee wall floor and walls are being insulated, the floor joist running under the knee wall will be air sealed If fabric is used before dense packing, it will be secured, according to manufacturers specifications or with furring strips every wall stud If rigid material is used, material will be installed to cover 100% of the surface of the accessible knee wall area If foam sheathing is used, sheathing will be listed for uncovered use in an attic or covered with a fire barrier Objective(s): Eliminate bending, sagging, or movement that may result in air leakage Prevent air leakage through the top or bottom of the knee wall Ensure material will not tear under stress from wind loads or insulation GA Wx Field Guide Georgia Environmental Finance Authority 232 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.1a - Backing Before Knee walls often need sealing and insulation After Knee wall is prepped for dense pack insulation Tools: 1. Tape measure 2. Utility knife 3. Caulk gun 4. Spray foam gun 5. Drill 6. Stapler Materials: 1. Drywall 2. XPS 3. Caulk 4. Spray foam 5. Fasteners 6. Staples Knee walls missing top plates need one created from rigid material Top plate holds dense pack insulation New top plate should be sealed to in cavity surrounding joists and studs GA Wx Field Guide Georgia Environmental Finance Authority 233 of 491 June 22, 2018 Insulation > Attics > Knee Walls Bottom plates also need to be installed. Measure for size 4.1004.1b - Installation Cut to size and attempt to install in line with air barrier above Seal to surrounding joist If using house-wrap or fabric, tack in place with furring strips or staples Drywall is also a good barrier for dense packing knee walls 4.1004.1b - Installation Desired Outcome: Airtight cavity and insulated knee wall Specification(s): All existing batted insulation will be adjusted to ensure it is in full contact with the interior cladding and the top and bottom plates Insulation that is blown behind fabric or air barrier material will be blown dense to a minimum specification of 3.5 pounds per cubic foot for cellulose Follow manufacturer's requirements for fiberglass dense pack applications Objective(s): Eliminate misalignment of existing insulation Prevent insulation from settling or moving GA Wx Field Guide Georgia Environmental Finance Authority 234 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.1b - Installation Before Existing batt insulation should be adjusted to fit properly After If properly dense-packed, insulation should hold in place when finished Attach furring strips to create pockets for dense-pack insulation Insulation should meet manufacturer specifications for density. GA Wx Field Guide Georgia Environmental Finance Authority 235 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.2 - Preparation for Batt Insulation Desired Outcome: Airtight cavity and properly insulated knee wall 4.1004.2a - Knee wall prep for batts Desired Outcome: Airtight cavity and properly insulated knee wall Specification(s): All knee walls will have a top and bottom plate or blockers installed using a Rigid material All joints, cracks, and penetrations will be sealed in finished material, including interior surface to framing connections When knee wall floor and walls are being insulated, the floor joist running under the knee wall will be air sealed. Objective(s): Eliminate bending, sagging, or movement that may result in air leakage Prevent air leakage through the top or bottom of the knee wall Create an air barrier Before Top plate is missing from knee wall After New top plate is sealed to adjacent framing GA Wx Field Guide Georgia Environmental Finance Authority 236 of 491 June 22, 2018 Insulation > Attics > Knee Walls Tools: 1. Spray foam gun 2. Caulk gun 3. Tape measure 4. Utility knife 5. Drill 6. Saw Materials: 1. XPS 2. Lumber 3. Caulk 4. Spray foam 5. Fasteners 4.1004.2b - Installation Top plate has been cut and fit to size Top plate has been sealed to adjacent framing Bottom plate is also missing. Space is measured so XPS can be cut Bottom plate is cut to size Bottom plate is placed in line with interior air barrier Bottom plate is also sealed to surrounding joist and framing 4.1004.2b - Installation Desired Outcome: Airtight cavity and properly insulated knee wall Specification(s): Insulation will be installed using one of the following methods: New batts will be installed in accordance with manufacture specifications GA Wx Field Guide Georgia Environmental Finance Authority 237 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.2c - Backing knee wall All existing batted insulation will be adjusted to ensure it is in full contact with the interior cladding and the top and bottom plates Objective(s): Eliminate misalignment of existing insulation Before Knee wall with batts improperly installed and missing from stud bays After Properly fit insulation filling full volume of stud bay Tools: 1. Utility knife 2. Tape measure Materials: 1. Fiberglass batts Where existing insulation is improperly Kraft-face should go to "warm in installed, fix it winter" side and batt should fill bay Batts should fill entire volume of knee wall stud bays 4.1004.2c - Backing knee wall Desired Outcome: Airtight cavity and properly insulated knee wall GA Wx Field Guide Georgia Environmental Finance Authority 238 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.2c - Backing knee wall Specification(s): If rigid material is used, material will be installed to cover 100% of the surface of the knee wall If foam sheathing is used, sheathing will be listed for uncovered use in attic, or covered with a fire barrier Objective(s): Prevent insulation from settling or moving Before Knee walls with batt insulation require covering After Foam sheathing? Needs to be covered with a fire barrier Tools: Materials: 1. Utility knife 1. Drywall 2. Tape measure 2. House wrap 3. Drill Many popular extruded polystyrene (XPS) foam insulation products meet the exemption at the bottom of the following section from the 2012 IRC, based on testing and evaluation by the ICC Evaluation Service (ICC-ES) or Underwriters Laboratories (UL). Ensure that the code conditions are met and check for the appropriate ICC-ES or UL evaluation report for the specific product and manufacturer before installing without an iginition or thermal barrier. "R316.5.3 Attics. The thermal barrier specified in Section R316.4 is not required where all of the following apply: 1. Attic access is required by Section R807.1. 2. The space is entered only for purposes of repairs or maintenance. 3. The foam plastic insulation is protected against ignition using one of the following ignition barrier materials: 3.1. 11/2-inch-thick (38 mm) mineral fiber insulation; GA Wx Field Guide Georgia Environmental Finance Authority 239 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.2c - Backing knee wall 3.2. 1/4-inch-thick (6.4 mm) wood structural panels; 3.3. 3/8-inch (9.5 mm) particleboard; 3.4. 1/4-inch (6.4 mm) hardboard; 3.5. 3/8-inch (9.5 mm) gypsum board; or 3.6. Corrosion-resistant steel having a base metal thickness of 0.016 inch (0.406 mm); 3.7. 11/2-inch-thick (38 mm) cellulose insulation.The above ignition barrier is not required where the foam plastic insulation has been tested in accordance with Section R316.6." 1 2 Fiberglass batts in attic knee walls can be held in place by If foam sheathing is used, it needs to be covered with a house wrap fire barrier GA Wx Field Guide Georgia Environmental Finance Authority 240 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.3 - Strapping for Existing Insulation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Note: 4.1004.3a - Sealing Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Holes and penetrations will be sealed Bypasses will be blocked and sealed Objective(s): Prevent air leakage 4.1004.3b - Installation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Insulation will be installed in full contact with all sides of existing cavity without gaps, voids, compressions, misalignments, or wind intrusions Objective(s): Insulate to prescribed R-value 4.1004.3c - Attachment Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to GA Wx Field Guide Georgia Environmental Finance Authority 241 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.3d - Occupant education prescribed R-value Specification(s): Strapping material will have a minimum expected service life of 20 years Objective(s): Maintain alignment 4.1004.3d - Occupant education Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Documentation of material and R-value will be provided to occupant Objective(s): Provide occupant with documentation of installation GA Wx Field Guide Georgia Environmental Finance Authority 242 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.4 - Knee Wall Without Framing Desired Outcome: Consistent uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value 4.1004.4a - Sealing Desired Outcome: Consistent uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Holes and penetrations will be sealed Bypasses will be blocked and sealed Objective(s): Prevent air leakage 4.1004.4b - Flat cavity present Desired Outcome: Consistent uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Gap between framing and existing air barrier will be insulated Objective(s): Create a flat insulated surface 4.1004.4c - Installation Desired Outcome: Consistent uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 243 of 491 June 22, 2018 Insulation > Attics > Knee Walls 4.1004.4d - Occupant education Specification(s): A rigid insulated sheathing will be mechanically fastened to code required R-value Seams will be sealed Objective(s): Insulate to prescribed R-value 4.1004.4d - Occupant education Desired Outcome: Consistent uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 244 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.1 - Accessible Floors--Batt Installation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow 4.1005.1a - Preparation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Subfloor or drywall will be removed to access cavities as necessary, including inaccessible kneewall attic floor spaces All electrical junctions will be flagged to be seen above the level of the insulation Open electrical junction boxes will have covers installed Objective(s): Access the workspace Provide location of electrical junctions for future servicing Prevent an electrical hazard Before Remove flooring in attic spaces to access floor cavities and insulate After Flag electrical junctions to make future maintenance and repairs easier GA Wx Field Guide Georgia Environmental Finance Authority 245 of 491 June 22, 2018 Insulation > Attics > Attic Floors Tools: 1. Hammer 2. Pry bar Materials: 1. Flags 4.1005.1b - Installation Pry up flooring to access floor cavities Check cavity for electrical junctions and penetrations If electrical junctions are found, they should be enclosed and flagged Air seal any penetrations 4.1005.1b - Installation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Batt insulation will be installed in accordance with manufacturer specifications without gaps, voids, compressions, misalignments, or wind intrusions Insulation will be installed to the prescribed R-value Objective(s): Insulate to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 246 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.1c - Occupant education Before Accessible attic floors should be air sealed and insulated Tools: 1. Hammer 2. Utility knife 3. Tape measure After Insulate floor cavities to prescribe R-value from the work order Materials: 1. Fiberglass batts Insert fiberglass batts into floor cavities, kraft-face down Fill entire volume of floor cavity Once insulated, flooring should be reinstalled 4.1005.1c - Occupant education Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness GA Wx Field Guide Georgia Environmental Finance Authority 247 of 491 June 22, 2018 Insulation > Attics > Attic Floors R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 4.1005.1c - Occupant education Best Practice Document the thickness and R-value of the installed insulation Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 248 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.2 - Accessible Floors--Loose Fill Installation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow 4.1005.2a - Preparation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Subfloor or drywall will be removed to access cavities as necessary, including inaccessible kneewall attic floor spaces Insulation will be adequately marked for depth a minimum of every 300 square feet of attic area, with measurement beginning at the air barrier All electrical boxes will be flagged to be seen above the level of the insulation Open electrical junctions will have covers installed Insulation dams and enclosures will be installed as required Objective(s): Access the workspace Verify uniformity of insulation material Provide location of electrical boxes for future servicing Prevent an electrical hazard GA Wx Field Guide Georgia Environmental Finance Authority 249 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.2a - Preparation Before Accessible attic floors should be air sealed and insulated Tools: 1. Pry bar 2. Hammer 3. Caulk gun 4. Utility knife 5. Staple gun 6. Spray foam gun 7. Tape measure After Depth markers and insulation dams aid in proper insulation of attic spaces Materials: 1. Flags 2. Depth markers 3. Staples 4. XPS 5. Caulk 6. Spray foam Check cavity for electrical junctions and penetrations Flag and install covers on electrical junctions Seal any penetrations GA Wx Field Guide Georgia Environmental Finance Authority 250 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.2b - Air barrier Non-IC (insulation contact) can lights should be covered with a dam and have no insulation on top Install depth markers and insulation dams above height of insulation 4.1005.2b - Air barrier Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Existence of air barrier material in line with the knee walls will be installed or verified when dense packing Air barrier material will not bend, sag, or move once dense packed Objective(s): Hold dense pack in place Before When missing, bottom plates must be installed under knee walls After New bottom plates complete air barrier and hold insulation in place GA Wx Field Guide Georgia Environmental Finance Authority 251 of 491 June 22, 2018 Insulation > Attics > Attic Floors Tools: 1. Tape measure 2. Utility knife 3. Saw 4. Drill 5. Spray foam gun 6. Caulk gun Materials: 1. Spray foam 2. XPS 3. Drywall 4. Plywood 5. Fasteners 6. Caulk sealant 4.1005.2c - Installation Measure floor cavity for new bottom plate Cut rigid material, such as XPS, to size to snugly fit into cavity Align block with air barrier of conditioned space Air seal around new bottom plate with spray foam 4.1005.2c - Installation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): All insulation will be installed to the minimum unsettled depth and the maximum coverage per bag to reach a consistent depth for desired R-value indicated on the manufacturer's coverage chart. GA Wx Field Guide Georgia Environmental Finance Authority 252 of 491 June 22, 2018 Insulation > Attics > Attic Floors Objective(s): Reduce heating and air conditioning costs Improve comfort Minimize noise 4.1005.2d - Onsite documentation Before Accessible attic floor should be air sealed and insulated Tools: 1. Insulation machine After Check chart on package to ensure proper insulation depth to achieve R-value Materials: 1. Loose fill insulation Use depth markers to ensure insulation has reached prescribed R-value Where flooring cannot be removed, verify insulation is meeting R-value goal 4.1005.2d - Onsite documentation Desired Outcome: Consistent, thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 253 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.2d - Onsite documentation A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and settled thickness Number of bags installed in accordance with manufacturer specification Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 Best Practice Information on insulation installed should be posted nearby Best Practice Posted info includes insulation type, r-value, depth, coverage area, etc. Paraphrased from 16 CFR 460.17: If you are an installer, you must give your customers a contract or receipt for the insulation you install. For loose-fill, the receipt must show the coverage area, initial installed thickness, minimum settled thickness, R-value, and the number of bags used. To figure out the R-value of the insulation, use the data that the manufacturer gives you. The receipt must be dated and signed by the installer. GA Wx Field Guide Georgia Environmental Finance Authority 254 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.3 - Accessible Floors--Batt Insulation Over Existing Insulation Desired Outcome: Insulation controls heat transfer through ceiling 4.1005.3e - Onsite documentation Desired Outcome: Insulation controls heat transfer through ceiling Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 Best Practice Provide occupant with documentation of and about insulation installed GA Wx Field Guide Georgia Environmental Finance Authority 255 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.3e - Onsite documentation Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide an attic insulation card detailing thickness, type, and R-value of the newly added insulation GA Wx Field Guide Georgia Environmental Finance Authority 256 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.4 - Accessible Floors--Loose Fill Over Existing Insulation Desired Outcome: Insulation controls heat transfer through ceiling 4.1005.4d - Onsite documentation Desired Outcome: Insulation controls heat transfer through ceiling Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and minimum settled thickness Number of bags installed in accordance with manufacturer specifications Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 257 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.4d - Onsite documentation Best Practice Written documentation of insulation type and efficiency will be provided Best Practice Information should include depth of loose fill installed and once settled Paraphrased from 16 CFR 460.17: If you are an installer, you must give your customers a contract or receipt for the insulation you install. For loose-fill, the receipt must show the coverage area, initial installed thickness, minimum settled thickness, R-value, and the number of bags used. To figure out the R-value of the insulation, use the data that the manufacturer gives you. The receipt must be dated and signed by the installer. GA Wx Field Guide Georgia Environmental Finance Authority 258 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.5 - Enclosed Bonus Room Floor Over Unconditioned Space--Dense Pack Installation Desired Outcome: A consistent thermal boundary between conditioned and unconditioned space controls the heat flow 4.1005.5a - Air barrier Desired Outcome: A consistent thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Existence of air barrier material in line with the knee walls will be installed or verified when dense packing Air barrier material will not bend, sag, or move once dense packed Objective(s): Hold dense pack in place Before This finished garage below a bonus room is an unconditioned space After Rigid material forms an air barrier located under the bonus room stem wall Tools: 1. Drywall saw 2. Utility knife 3. Tape measure 4. Straight edge Materials: 1. XPS or other rigid material GA Wx Field Guide Georgia Environmental Finance Authority 259 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.5b - Fill floors Snap chalk lines to keep access cuts Cut through garage ceiling to access The rigid block should be placed in line clean and easy to repair joist cavities below bonus room with the stem wall above Measure joist cavity depth Measure joist cavity width Cut XPS, or other rigid material, to measured size of joist cavity Rigid block should fit snugly into joist Rigid block will hold the insulation in cavity to prevent insulation leaks place under the bonus room above 4.1005.5b - Fill floors Desired Outcome: A consistent thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Each cavity will be 100% filled to consistent density: GA Wx Field Guide Georgia Environmental Finance Authority 260 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.5b - Fill floors Cellulose material will be installed to a minimum density of 3.5 pounds per cubic foot or to a maximum density structurally allowable Loose fiberglass material will be installed and will be specifically approved for air flow resistance to a minimum density per the manufacturer's recommendations The number of bags installed will be confirmed and will match the number required on the coverage chart Insulation will be verified to prevent visible air movement at 50 pascals of pressure difference using chemical smoke or other approved verification method by the authority having jurisdiction Objective(s): Eliminate voids and settling Minimize framing cavity air flows Before With rigid block in place under bonus room stem wall, insulation can begin Tools: 1. Insulation machine 2. Drill 3. Smoke pencil 4. Blower door 5. Small hole saw bit After Chemical smoke at 50pa indicates insulation is at appropriate density Materials: 1. Cellulose insulation 2. Dense packable insulation 3. Spackle 4. Seam tape GA Wx Field Guide Georgia Environmental Finance Authority 261 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.5c - Safety Blow insulation into cavities to density Close cavities with access panel cut Cut small test holes in cavities to verify appropriate for chosen material out at the beginning specified density has been met Set up blower door and depressurize With blower door running, chemical Tape and spackle access panel and bonus room to -50pa wrt outside smoke should not draw into test holes test holes to repair garage ceiling 4.1005.5c - Safety Desired Outcome: A consistent thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): Insulation will not be allowed on top of non-IC rated can light boxes or between a heat-generating appliance and a dam, unless material is rated for contact with heat generating sources Objective(s): Prevent a fire hazard GA Wx Field Guide Georgia Environmental Finance Authority 262 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.5d - Onsite documentation Before Dams around flues, chimneys, and light fixtures should hold back insulation After Clear dams of any insulation or debris in order to minimize risk of fire No insulation on top of non-insulation contatct (non-IC) rated fixtures 4.1005.5d - Onsite documentation Desired Outcome: A consistent thermal boundary between conditioned and unconditioned space controls the heat flow Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed GA Wx Field Guide Georgia Environmental Finance Authority 263 of 491 June 22, 2018 Insulation > Attics > Attic Floors Comply with 16 CFR 460.17 4.1005.5d - Onsite documentation After Documentation of insulation installed should be provided in writing Paraphrased from 16 CFR 460.17: If you are an installer, you must give your customers a contract or receipt for the insulation you install. For all insulation except loose-fill and aluminum foil, the receipt must show the coverage area, thickness, and R-value of the insulation you installed. The receipt must be dated and signed by the installer. To figure out the R-value of the insulation, use the data that the manufacturer gives you. In addition to posting an insulation information card in the Information should include insulation type, r-value, insulated space, a "receipt" may be provided coverage area, etc. GA Wx Field Guide Georgia Environmental Finance Authority 264 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.6 - Enclosed Attic Storage Platform Floor--Dense Pack Installation Desired Outcome: Insulation reduces heat flow through floor and framing cavities inaccessible to other treatments 4.1005.6a - Fill floors Desired Outcome: Insulation reduces heat flow through floor and framing cavities inaccessible to other treatments Specification(s): Each cavity will be 100% filled to consistent density: Cellulose material will be installed to a minimum density of 3.5 pounds per cubic foot or to a maximum density structurally allowable Loose fiberglass material will be installed and will be specifically approved for air flow resistance to a minimum density per the manufacturer's recommendations The number of bags installed will be confirmed and will match the number required on the coverage chart Insulation will be verified to prevent visible air movement at 50 pascals of pressure difference using chemical smoke or other approved verification method by the authority having jurisdiction Objective(s): Eliminate voids and settling Minimize framing cavity air flows 4.1005.6b - Safety Desired Outcome: Insulation reduces heat flow through floor and framing cavities inaccessible to other treatments Specification(s): Insulation will not be allowed on top of non-IC rated can light boxes or between a heat generating appliance and a dam, unless material is rated for contact with heat generating sources GA Wx Field Guide Georgia Environmental Finance Authority 265 of 491 June 22, 2018 Insulation > Attics > Attic Floors 4.1005.6c - Onsite documentation Objective(s): Prevent a fire hazard 4.1005.6c - Onsite documentation Desired Outcome: Insulation reduces heat flow through floor and framing cavities inaccessible to other treatments Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 4.1005.6d - Occupant education Desired Outcome: Insulation reduces heat flow through floor and framing cavities inaccessible to other treatments Specification(s): Documentation of material and R-value will be provided to occupants Objective(s): Provide occupant with documentation of installation GA Wx Field Guide Georgia Environmental Finance Authority 266 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.1 - Pull-Down Stairs Desired Outcome: Pull-down attic stair properly sealed and insulated 4.1006.1a - Installation Desired Outcome: Pull-down attic stair properly sealed and insulated Specification(s): Top-side of the attic enclosure will be insulated to the maximum R-value structurally allowable up to the R-value of the adjoining insulated assembly Pull-down stair rough opening will be surrounded with a durable, rigid dam that is higher than the level of the attic floor insulation Counter-weights should be considered to ease accessibility for excessively heavy hatches Objective(s): Achieve uniform R-value Prevent loose insulation from entering the living area Before Insulation needs to be dammed to keep from falling through during operation After Insulated pull-down stairs cover installed to prevent air leakage GA Wx Field Guide Georgia Environmental Finance Authority 267 of 491 June 22, 2018 Insulation > Attics > Attic Openings Tools: 1. Tape measure 2. Drill 3. Saw 4. Caulk gun 4.1006.1b - Sealing Materials: 1. Caulk sealant 2. Lumber 3. XPS 4. Pre-fabricated stairwell cover Stairs and hatch should both be insulated to match r-value of attic 4.1006.1b - Sealing Desired Outcome: Pull-down attic stair properly sealed and insulated Specification(s): Entire pull-down stair assembly will be covered with an airtight and removable/openable enclosure inside the attic space Pull-down stair frame will be caulked, gasketed, weatherstripped, or otherwise sealed with an air barrier material, suitable film, frictionally engaging components or solid material that allows attic door operation Objective(s): Prevent air leakage GA Wx Field Guide Georgia Environmental Finance Authority 268 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.1b - Sealing Before Unsealed pull-down stairs leads to air leakage to and from the attic Tools: 1. Caulk gun After To preserve thermal envelope, an airtight seal needs to be created Materials: 1. Weatherstripping 2. Spray foam 3. Caulk Seal around frame of pull-down stairs Weatherstrip around stair panel to with appropriate sealant encourage a tight seal Remember to seal finish details and trim Insulation and sealing should be airtight but openable GA Wx Field Guide Georgia Environmental Finance Authority 269 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.2 - Access Doors and Hatches Desired Outcome: Attic access door properly sealed and insulated 4.1006.2a - Installation Desired Outcome: Attic access door properly sealed and insulated Specification(s): Hatches will be insulated to the maximum R-value structurally allowable up to the R-value of the adjoining insulated assembly Attic hatches rough opening will be surrounded with a durable,rigid protective baffle that is higher than the level of the surrounding attic floor insulation Objective(s): Achieve uniform R-value on the attic door or hatch Achieve uniform R-value on the attic floor Prevent loose attic floor insulation from entering the living area Before Uninsulated attic hatches and access panels weaken the thermal envelope After Hatch cover or panel access door should match r-value of attic insulation GA Wx Field Guide Georgia Environmental Finance Authority 270 of 491 June 22, 2018 Insulation > Attics > Attic Openings Materials: 1. XPS 2. Lumber 3. Weatherstripping 4. Fasteners 4.1006.2b - Sealing 1 Create hatch cover that matches rvalue of surrounding insulation 2 3 Build dam to hold back attic insulation Weatherstrip underside of hatch cover and hold cover in place tightly to create tight seal 4 Alternate installation for vertical access panel to attic 4.1006.2b - Sealing Desired Outcome: Attic access door properly sealed and insulated Specification(s): Access hatch frames will be sealed using caulk, gasket, weather-strip, or otherwise sealed with an air barrier material, suitable film, or solid material Options will include installing a latch or lock or frictionally engaged components that do not require a latch GA Wx Field Guide Georgia Environmental Finance Authority 271 of 491 June 22, 2018 Insulation > Attics > Attic Openings The measure must include a protective baffle or insulation barrier Objective(s): Prevent air leakage 4.1006.2c - Attachment Before Unsealed attic hatches and panel doors allow air leakage to and from attic After Once sealed, air leakage at attic hatch or door should be minimized Materials: 1. Weatherstripping 2. 3/4" Lumber 3. Caulk Remember to seal around finish details and framing on interior Build insulation dam from 3/4 inch lumber and seal around base Weatherstrip around bottom edge of hatch cover to create air tight seal 4.1006.2c - Attachment Desired Outcome: Attic access door properly sealed and insulated Specification(s): Insulation will be permanently attached and in complete contact with the air barrier GA Wx Field Guide Georgia Environmental Finance Authority 272 of 491 June 22, 2018 Insulation > Attics > Attic Openings Objective(s): Insulate to prescribed R-value 4.1006.2c - Attachment Before Unsealed and uninsulated attic hatches and access doors allow leakage After Rigid insulation on back of new hatch cover attached firmly and squarely to allow for airtight fit Tools: 1. Caulk gun 2. Utility knife Materials: 1. XPS 2. Adhesive 1 2 Apply foam tape to "warm side" face of Ensure an air tight seal by making attic hatch sure foam tape has no gaps 3 Apply strong adhesive to "cold-side" of hatch 4 5 6 GA Wx Field Guide Georgia Environmental Finance Authority 273 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.2c - Attachment Adhesive should ring perimeter as well Affix XPS insulation to "cold-side" of as criss-crossing hatch to ensure hatch with adhesive, ensuring XPS is complete attachment of insulation tight and square to hatch Repeat adhesive and XPS layers to reach maximum R-value without making hatch excessively heavy or awkward 7 All XPS layers should be attached firmly to one another and square to hatch GA Wx Field Guide Georgia Environmental Finance Authority 274 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.3 - Whole-House Fan Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Note: 4.1006.3a - Installation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Specification(s): Sides of fan insulation box assembly will be insulated to the same R-value as adjoining insulated assembly Objective(s): Insulate to prescribed R-value 4.1006.3b - Air sealing Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Specification(s): Fan insulation box frame will be continuously weatherstripped to ensure a tight fit Fan insulation box will be constructed at a depth to protect the fan housing and motor from insulation Objective(s): Prevent air leakage 4.1006.3c - Attachment Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 275 of 491 June 22, 2018 Insulation > Attics > Attic Openings 4.1006.3d - Durability Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Specification(s): Non-compressible insulation will be permanently attached in contact with fan insulation box Appropriate adhesive or mechanical fastener will be used Objective(s): Ensure continuous alignment with air barrier 4.1006.3d - Durability Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Specification(s): Material integrity will meet a minimum expected service life of 20 years Objective(s): Ensure a minimum expected service life 4.1006.3e - Occupant education Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value of an adjoining insulated assemb Specification(s): Purpose of insulation will be communicated to occupant Objective(s): Educate occupant on how to use the whole-house fan to ensure integrity of the fan insulated assembly throughout service life GA Wx Field Guide Georgia Environmental Finance Authority 276 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.1 - Attic Ventilation Desired Outcome: Properly restored vents minimize moisture and ice dams 4.1088.1a - Air barrier and thermal boundary Desired Outcome: Properly restored vents minimize moisture and ice dams Specification(s): Attic ventilation will be recommended or installed if local code requires attic ventilation during weatherization or retrofits The presence of an effective air barrier and thermal boundary between the attic and the living space must be verified and appropriate attic sealing and proper insulation is specified as part of the scope of work Objective(s): Ensure presence of continuous air barrier and thermal boundary 4.1088.1b - Vent type Desired Outcome: Properly restored vents minimize moisture and ice dams Specification(s): Attic vent types will be made of corrosion-resistant material for their specific location (e.g., exterior soffit, gable end, roof ) and material and intended use (e.g., metal vent on metal roof ) Attic-powered ventilators will not be used Objective(s): Ensure vent meets proper performance characteristics for location and roofing type 4.1088.1c - Vent location Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 277 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.1d - Ventilation baffling Properly restored vents minimize moisture and ice dams Specification(s): Placement of attic vents will be considered for proper air flow and prevention of entry of wind driven rain or snow Objective(s): Encourage proper air flow Minimize entry of wind driven rain or snow 4.1088.1d - Ventilation baffling Desired Outcome: Properly restored vents minimize moisture and ice dams Specification(s): Baffling for attic soffit vents will be installed to: Ensure proper air flow Prevent wind washing of insulation Allow maximum insulation coverage Ensure baffle terminates above insulation Objective(s): Ensure vent allows proper air flow without compromising insulation performance 4.1088.1e - Ventilation screens Desired Outcome: Properly restored vents minimize moisture and ice dams Specification(s): All attic ventilation will have screens with non-corroding wire mesh with openings of 1/16" to 1/4" to prevent pest entry (e.g., birds, bats, bees) Existing vents that are not screened will be covered with non-corroding wire mesh with openings of 1/16" to 1/4" Ensure net free area requirements are met GA Wx Field Guide Georgia Environmental Finance Authority 278 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.1e - Ventilation screens Additional vents or larger vents can be added if screen size is smaller than designated Objective(s): Prevent pest entry GA Wx Field Guide Georgia Environmental Finance Authority 279 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.3 - Skylights Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value 4.1088.3b - Installation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Insulation will be installed in accordance with manufacturer specifications and will be in full contact with all sides of existing cavity without gaps, voids, compressions, misalignments, or wind intrusions Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value Before Uninsulated, unsealed skylight well After Insulated, air sealed skylight well GA Wx Field Guide Georgia Environmental Finance Authority 280 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.3c - Occupant education Tools: 1. stapler 2. tape measure 3. utility knife 4. caulking gun 5. foam gun Materials: 1. caulk 2. one-part foam sealant 3. insulation (fiberglass, cellulose, spray polyurethane foam, polyisocyanurate board, extruded polystyrene board, or other as needed to achieve specified Rvalue) 4. air barrier material (drywall, foam board, paneling, hardboard, etc.) Air-permeable insulation such as fiberglass or cellulose should be covered with a sealed attic-side air barrier. 1 Skylight well 2 Carefully seal all seams and joints 3 Install insulation in complete contact with all sides of the cavity. 4 Install an attic-side air barrier. 5 The air barrier may be constructed from rigid insulation board. Seal the attic side air barrier 4.1088.3c - Occupant education Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 281 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.3c - Occupant education Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and settled thickness (settled thickness required for loose-fill only) Number of bags installed in accordance with manufacturer specifications (for loose-fill only) Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 Best Practice Attach an insulation information card in a prominent location near the attic access GA Wx Field Guide Georgia Environmental Finance Authority 282 of 491 June 22, 2018 Insulation > Attics > Special Considerations 4.1088.3c - Occupant education Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Attach an insulation information card in a prominent location near the attic access GA Wx Field Guide Georgia Environmental Finance Authority 283 of 491 June 22, 2018 Insulation > Walls > Preparation 4.1101.1 - Exterior Wall Dense Packing Desired Outcome: Walls properly prepared to receive dense pack insulation 4.1101.1a - Preparation Desired Outcome: Walls properly prepared to receive dense pack insulation Specification(s): Lead and asbestos safety procedures will be followed Cavities will be free of hazards, intact, and able to support dense pack pressures Drilling hazards (e.g., wiring, venting, fuel piping) will be located Blocking will be installed around: All openings to inside crawl space and basement for fibrous material High temperature fire-rated materials Wiring and electrical hazards Heat sources Access to exterior wall cavities will be gained, sheathing will be drilled as needed and probed to locate each cavity, wall studs, and blockers Interior will be masked and dust controlled during drilling when accessing from interior Electricity supply will be confirmed and will support blowing machine power demand Blowing machine pressure test will be performed with air on full, feed off, agitator running, and gate closed Hose outlet pressure will be at least 80 IWC or 2.9 psi for cellulose insulation; for other types of dense pack insulation, check manufacturer specification for blowing machine set up Objective(s): Prevent damage to house Provide a clean work space GA Wx Field Guide Georgia Environmental Finance Authority 284 of 491 June 22, 2018 Insulation > Walls > Preparation 4.1101.1b - Exterior dense pack Provide thorough access to allow 100% coverage Ensure proper equipment and process results in consistent density Prevent settling and retard air flow through cavities Protect worker and occupant health 4.1101.1b - Exterior dense pack Desired Outcome: Walls properly prepared to receive dense pack insulation Specification(s): Using fill tube, 100% of each cavity will be filled to a consistent density: Cellulose material will be installed to a minimum density of 3.5 pounds per cubic foot Loose fiber glass material will be installed and will be specifically approved for air flow resistance per manufacturer's specifications The number of bags installed will be confirmed and will match the number required on the coverage chart Insulation density will be verified by bag count, core sampling, or infrared camera with the blower door at 50 pascals to prevent visible air movement using chemical smoke at 50 pascals of pressure difference Objective(s): Eliminate voids and settling Minimize framing cavity air flows GA Wx Field Guide Georgia Environmental Finance Authority 285 of 491 June 22, 2018 Insulation > Walls > Preparation 4.1101.2 - Exterior Wall Insulating Sheathing Desired Outcome: Wall cladding removed and replaced to expose wall sheathing for installation of insulating wall sheathing 4.1101.2a - Wall cladding removal Desired Outcome: Wall cladding removed and replaced to expose wall sheathing for installation of insulating wall sheathing Specification(s): Existing cladding will be removed Lead and asbestos safety procedures will be followed Objective(s): Expose existing wall sheathing to prepare for installation of insulating sheathing 4.1101.2b - Wall cladding replacement Desired Outcome: Wall cladding removed and replaced to expose wall sheathing for installation of insulating wall sheathing Specification(s): New cladding will be installed in accordance with manufacturer specifications and local codes after exterior wall insulation is installed Objective(s): Install wall cladding correctly Meet local codes GA Wx Field Guide Georgia Environmental Finance Authority 286 of 491 June 22, 2018 Insulation > Walls > Accessible Walls 4.1102.1 - Open-Cavity Wall Insulation--General Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value 4.1102.1a - Sealing Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Holes and penetrations will be sealed Bypasses will be blocked and sealed Objective(s): Prevent air leakage Before Penetrations and bypasses create places where blown in insulation can leak Tools: 1. Caulk gun After Sealed penetrations offer leakage protection and keep insulation in place Materials: 1. Backer rod 2. Spray foam 3. Caulk GA Wx Field Guide Georgia Environmental Finance Authority 287 of 491 June 22, 2018 Insulation > Walls > Accessible Walls 4.1102.1b - Installation Open walls to be insulated and drywalled need air sealing Penetrations and bypasses should be Use backer rod or other infill for larger sealed to keep insulation in cavities penetrations Seal penetration with caulk or fireblock, as appropriate 4.1102.1b - Installation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Insulation will be installed in accordance with manufacturer specifications without gaps, voids, compressions, misalignments, or wind intrusions Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 288 of 491 June 22, 2018 Insulation > Walls > Accessible Walls 4.1102.1c - Pre-drywall verification Before Open walls should be insulated Tools: 1. Insulation machine 2. Staple gun After Well-insulated rooms are significantly more comfortable in all seasons Materials: 1. Loose fillable insulation 2. Netting 3. Staples 4. Fiberglass batts Wall should be netted and insulation blow in to prescribed OR: Wall can be insulated using batts installed without r-value gaps 4.1102.1c - Pre-drywall verification Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): Verification of complete installation without gaps, voids, compressions, misalignments, or wind intrusions will be provided GA Wx Field Guide Georgia Environmental Finance Authority 289 of 491 June 22, 2018 Insulation > Walls > Accessible Walls Objective(s): Install insulation correctly 4.1102.1d - Onsite documentation Before Verify insulation is properly installed before drywalling Tools: 1. Hands 2. Eyes After Once proper installation is verified, begin drywalling to finish wall Take a visual and physical inspection of insulation installation 4.1102.1d - Onsite documentation Desired Outcome: Consistent, uniform thermal boundary between the conditioned space and unconditioned space to prescribed R-value Specification(s): A dated receipt signed by the installer will be provided that includes: GA Wx Field Guide Georgia Environmental Finance Authority 290 of 491 June 22, 2018 Insulation > Walls > Accessible Walls 4.1102.1d - Onsite documentation Insulation type Coverage area R-value Installed thickness and settled thickness (settled thickness required for loose-fill only) Number of bags installed in accordance with manufacturer specifications (for loose-fill only) Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 291 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.1 - Dense Pack Exterior Walls Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1103.1a - Exterior dense pack Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Using fill tube or an alternative method as approved by the authority having jurisdiction, 100% of each cavity will be filled to a consistent density: Cellulose insulation used in an enclosed cavity will be installed at 3.5 pounds per cubic foot or greater density Blown fiberglass, mineral fiber, or rock and slag wool used in an enclosed cavity will be installed at or above the manufacturer recommended density to limit air flow that corresponds to an air permeance value of 3.5 cfm /sq. ft. at 50 pascals, as measured using ASTM C 522, E 283, or E 2178; the number of bags installed will be confirmed and will match the number required on the coverage chart All holes and penetrations will be plugged and/or sealed Insulation will be verified to prevent visible air movement using chemical smoke at 50 pascals of pressure difference Objective(s): Eliminate voids and settling Minimize framing cavity air flows 4.1103.1b - Onsite documentation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly GA Wx Field Guide Georgia Environmental Finance Authority 292 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.1b - Onsite documentation Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 293 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.2 - Additional Exterior Wall Cavities Desired Outcome: Properly installed insulation reduces heat flow through walls and framing cavities inaccessible to other treatments 4.1103.2a - Location of cavities Desired Outcome: Properly installed insulation reduces heat flow through walls and framing cavities inaccessible to other treatments Specification(s): Details remaining in or between completed wall sections will be located and accessed Objective(s): Ensure the last gaps and framing edges in the thermal boundary, roof-wall joints, floor-wall joints, etc., are found and finished Before In Progress Cavities missing insulation allow greater heat Either from inside or outside, using IR transfer than insulated ones camera to locate cavities for fill Tools: 1. Infrared camera 2. Drill 3. Hole saw 4. Tape measure 5. Probe GA Wx Field Guide Georgia Environmental Finance Authority 294 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.2d - Quality assurance 4.1103.2b - Sealing Desired Outcome: Properly installed insulation reduces heat flow through walls and framing cavities inaccessible to other treatments Specification(s): Backing will be provided and all newly uncovered openings will be sealed with air barriers, foam, or mastic, maintaining all required clearances Objective(s): Ensure the air barrier is connected across all accessible house elements Before Unsealed penetrations should be sealed to ensure insulation stays in place Tools: 1. Caulk gun After Once air barrier has been preserved by sealing, insulation can begin Materials: 1. Caulk 2. Backer rod 3. Fire-block, when necessary 4.1103.2d - Quality assurance Desired Outcome: Properly installed insulation reduces heat flow through walls and framing cavities inaccessible to other treatments Specification(s): Completed wall sections will be viewed using infrared camera with blower door operating Any voids or low density areas will be drilled and re-packed GA Wx Field Guide Georgia Environmental Finance Authority 295 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls Objective(s): Establish air barrier and thermal boundary Confirm no voids or hidden air flows remain 4.1103.2e - Close holes Before Unisulated exterior wall cavities to be insulated Tools: 1. Infrared camera After Reduced temperature difference indicating insulated wall cavities Depressurize house (if safe) to -50pa Inspect for voids and low density wrt outside areas Reduced temperature difference indicating insulated wall cavities 4.1103.2e - Close holes Desired Outcome: Properly installed insulation reduces heat flow through walls and framing cavities inaccessible to other treatments Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 296 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.2e - Close holes Installation holes will be plugged as follows: Exterior holes will be weather barrier patched Interior holes will be coated and patched to match original interior surface All construction debris and dust will be collected and removed Objective(s): Ensure house is returned to watertight and clean condition In Progress With insulation complete, wall needs to be patched to better-than-found Tools: 1. Taping knife 2. Caulk gun 3. Drill 4. Paint brush After When repair is finished, it shouldn't be obvious any work was done Materials: 1. Spackle 2. House wrap 3. Lath 4. Stucco 5. Fasteners 6. Adhesive 7. Primer 8. Drywall 9. XPS GA Wx Field Guide Georgia Environmental Finance Authority 297 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.2e - Close holes For interior access, locate access holes at studs for easier patching Once drywall patches are spackled, For exterior access, use a drop cloth prime and paint. or gutter to help with clean up Plug holes with rigid material that will For stucco and plaster patches, lath If possible, maintain house wrap, or not move or sag over time will need to be used to hold weight replace it after holes are plugged Put siding back in place, or return exterior finish to match remaining wall GA Wx Field Guide Georgia Environmental Finance Authority 298 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.3 - Insulated Sheathing and Insulated Siding Installation Desired Outcome: Properly installed insulated wall sheathing and insulated siding 4.1103.3a - Sealing Desired Outcome: Properly installed insulated wall sheathing and insulated siding Specification(s): Holes, gaps, and penetrations in existing sheathing will be sealed Objective(s): Prevent air leaks 4.1103.3b - Location of wall framing Desired Outcome: Properly installed insulated wall sheathing and insulated siding Specification(s): Wall studs and other framing will be located and marked Objective(s): Provide secure attachment of insulating sheathing 4.1103.3c - Installation Desired Outcome: Properly installed insulated wall sheathing and insulated siding Specification(s): Insulation will be installed in accordance with manufacturer specifications without gaps, voids, compressions, misalignments, or wind intrusions Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 299 of 491 June 22, 2018 Insulation > Walls > Enclosed Walls 4.1103.3d - Occupant education Objective(s): Install insulation properly 4.1103.3d - Occupant education Desired Outcome: Properly installed insulated wall sheathing and insulated siding Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 300 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1 - Standard Floor System--Batt Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.1a - Sealing Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Sealing the floor system will be completed before insulating Objective(s): Ensure airtight envelope Prevent leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 301 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1b - Installation Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.1b - Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Insulation will be installed in contact with subfloor without gaps, voids, compressions, misalignments, or wind intrusions If kraft-faced batts are used, they will be installed with kraft facing to subfloor Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 302 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1c - Securing batts Before Uninsulated floors above unconditioned spaces are an energy drain Tools: 1. Utility knife 2. Tape measure After Batts should fill most of joist bay and be in full contact with subfloor Materials: 1. Kraft-faced fiberglass batts to work order specifications Order and install insulation as called for in Work Order If precise r-value cannot be purchased, choose option with greater r-value Install kraft-faced batts with paper against subfloor Ensure batts are in full contact with subfloor and remain uncompressed GA Wx Field Guide Georgia Environmental Finance Authority 303 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1d - Occupant education 4.1301.1c - Securing batts Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Batts will be secured with physical fasteners Objective(s): Ensure insulation remains in contact with subfloor Before Fiberglass batts should not be hanging away from subfloor After "Lightning rods" or twine can be used to hold batts in contact Tools: 1. Utility knife 2. Drill 3. Staple gun Materials: 1. Lightning rods 2. Twine 3. Fasteners Batt should be in contact with subfloor without being compressed Twine fastened across bays in a zig-zag pattern can also be used GA Wx Field Guide Georgia Environmental Finance Authority 304 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1d - Occupant education 4.1301.1d - Occupant education Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 Best Practice Provide occupant with documentation of and about insulation installed GA Wx Field Guide Georgia Environmental Finance Authority 305 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.1d - Occupant education Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 306 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.2 - Standard Floor System--Loose Fill with Netting Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.2a - Sealing Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Sealing the floor system will be completed before insulating Objective(s): Ensure airtight envelope Prevent leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 307 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.2b - Netting, fabric Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.2b - Netting, fabric Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): When using netting or fabric, staples will be placed according to manufacturer specifications Netting or fabric will meet local fire codes Objective(s): Secure insulation Before Uninsulated floors above unconditioned spaces are an energy drain In Progress Netting is secured to joists and sills to create cavities for insulation GA Wx Field Guide Georgia Environmental Finance Authority 308 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Scissors 3. Stapler Materials: 1. Fabric netting 2. Staples 4.1301.2c - Installation 1 Secure netting across each joist to create separate cavities 2 3 Secure netting across sills to prevent Keep netting taut while stapling to leakage of insulation prevent wrinkles and leakage 4 Staples should be kept tightly together, placed no more than 1 1/2" apart 4.1301.2c - Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Insulation in netted or fabric cavities will be dense packed with loose fill insulation in accordance with manufacturer specifications Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 309 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.2c - Installation Insulation will be in continuous contact with air barrier Objective(s): Insulate to prescribed R-value Ensure a continuous thermal boundary between conditioned and unconditioned space In Progress With netting in place, insulation can begin Tools: 1. Utility knife 2. Insulation machine After Cavities filled to manufacturer specs to achieve prescribed r-value Materials: 1. Loose fill fiberglass or cellulose 1 Order and install insulation based on specifications in work order 2 Always wear proper PPE when blowing in insulation 3 Cut holes in each individual cavity to insert insulation machine nozzle GA Wx Field Guide Georgia Environmental Finance Authority 310 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.2d - Occupant education 4 Ensure that hole is large enough for nozzle without allowing for outflow 5 Consult manufacturer specs on insulation packaging for proper installation 6 Blow in insulation to prescribed r-value 4.1301.2d - Occupant education Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and minimum settled thickness Number of bags installed in accordance with manufacturer specifications Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 311 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.2d - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 312 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.3 - Standard Floor System--Loose Fill with Rigid Barrier Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.3a - Sealing Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Sealing the floor system will be completed before insulating Objective(s): Ensure airtight envelope Prevent leakage Before Gaps around penetrations cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Backer rod 2. Caulk 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 313 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.3b - Rigid air barrier Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.3b - Rigid air barrier Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A rigid air barrier will be mechanically fastened to underside of floor assembly, providing 100% coverage of the floor assembly Seams and penetrations will be sealed Objective(s): Relocate air barrier Before Uninsulated floors over unconditioned spaces are an energy drain After Rigid barriers provide air sealing and create cavities for insulation GA Wx Field Guide Georgia Environmental Finance Authority 314 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Saw 3. Drill 4. Caulk gun 4.1301.3c - Installation Materials: 1. Rigid material - drywall, XPS, plywood 2. Fasteners 3. Caulk Attach barrier to joists using appropriate fasteners for chosen material When possible, align seams with joist. Pay particular attention to sealing at Seal all seams with caulk complex joints to prevent leakage Remember to seal along sills as well 4.1301.3c - Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Loose fill insulation will be installed between air barrier and subfloor according to manufacturer specifications Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 315 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Objective(s): Insulate to prescribed R-value 4.1301.3c - Installation Before Once rigid barrier is sealed, insulation can be blown in Tools: 1. Insulation machine 2. Caulk gun After Materials: 1. Loose fill insulation 2. Caulk Make sure to wear proper PPE when Purchase and install loose fill to r- working with insulation value specified on Work Order Check manufacturer specifications for proper density to reach r-value Drill hole slightly larger than hose in Loose fill cavities created by rigid Once filled to prescribed density, GA Wx Field Guide Georgia Environmental Finance Authority 316 of 491 June 22, 2018 Insulation > Floors > Accessible Floors rigid barrier barrier 4.1301.3d - Occupant education prepare plug to preserve rigid barrier Plug should be sealed in place to prevent leakage 4.1301.3d - Occupant education Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and minimum settled thickness Number of bags installed in accordance with manufacturer specifications Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 317 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.3d - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 318 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.4 - Dense Pack Floor System with Rigid Barrier Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.4a - Sealing Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Sealing the floor system will be completed before insulating Objective(s): Ensure airtight envelope Prevent leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealands and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 319 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.4b - Rigid air barrier Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk small gaps and to hold backer rod in place 4.1301.4b - Rigid air barrier Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A rigid air barrier will be mechanically fastened to underside of floor assembly, providing 100% coverage of the floor assembly Seams and penetrations will be sealed Objective(s): Relocate air barrier Before Uninsulated floors over unconditioned spaces are an energy drain After Rigid barriers allow for air sealing and create cavities for insulation GA Wx Field Guide Georgia Environmental Finance Authority 320 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Saw 3. Drill 4. Tape measure 5. Caulk gun 4.1301.4c - Installation Materials: 1. Rigid material -- drywall, XPS, plywood 2. Fasteners 3. Caulk Securely fasten rigid barrier, aligning Seal all seams with caulk to prevent Pay particular attention at complex seams with joist when possible leakage joints Remember to caulk along sills 4.1301.4c - Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Dense pack insulation will be installed between air barrier and subfloor according to manufacturer specifications Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 321 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Objective(s): Insulate to prescribed R-value 4.1301.4c - Installation Before After Once rigid barrier is sealed, insulation can be Rigid barrier should be resealed to maintain blown in air barrier after filling Tools: 1. Insulation machine 2. Caulk gun Materials: 1. Dense packable insulation 2. Caulk Ensure that proper PPE is worn while Fill cavities to specified r-value from Check manufacturer specifications for working with insulation Work Order r-value before filling Drill hole slightly larger than nozzle Dense pack insulation into floor When filled to specified density and r- GA Wx Field Guide Georgia Environmental Finance Authority 322 of 491 June 22, 2018 Insulation > Floors > Accessible Floors into rigid barrier with hole saw cavities 4.1301.4d - Occupant education value, fill access hole Plug access hole and seal to maintain air barrier 4.1301.4d - Occupant education Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 323 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.4d - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 324 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.5 - Cantilevered Floor--Batt Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.5a - Air barrier Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Air barrier will be installed between joists and sealed Air barrier will be placed to the most interior edge of the top plate of the wall below Objective(s): Separate cantilevered floor from conditioned floor space Allow for insulation Before Cavities are open allowing unconditioned air to communicate within the space between floors. After Cavity as been blocked, sealed, and insulated. Tools: 1. tape measure 2. utility knife 3. flashlight Materials: 1. rigid air barrier 2. sealant GA Wx Field Guide Georgia Environmental Finance Authority 325 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.5b - Installation Refer to 2012 IECC with Georgia State Supplements and Amendments. Local codes may be more stringent than the statewide code. 1 Measure cavity to determine size necessary for blocking. 2 3 Measure and cut blocking to fit snugly Ensure the blocking is placed to the between floor joists. most interior edge of the top plate of the wall below. 4 5 Air seal blocking around its perimeter Cut batt insulation to match the size edges with foam or caulk. of the blocking. 4.1301.5b - Installation Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Air barrier will be insulated between joist from top plate of the wall below to subfloor above Cantilevered subfloor will be insulated in complete contact with the floor without gaps, voids, compressions, misalignments, or wind intrusions If kraft-faced batts are used, they will be installed with kraft facing to the air barrier GA Wx Field Guide Georgia Environmental Finance Authority 326 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value 4.1301.5c - Attachment Before After Cavities are open and subfloor of conditioned Batt insulation is installed to either fill the space above is uninsulated. cavity or be properly supported to maintain contact with the subfloor. Tools: 1. drill 2. nail gun 3. claw hammer Materials: 1. batt insulation - kraft-faced or unfaced 2. insulation supports Refer to 2012 IECC with Georgia State Supplements and Amendments. Local codes may be more stringent than the statewide code. Block and air seal all joist cavities in cantilevered floors above and in line with the supporting wall. 4.1301.5c - Attachment Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Batts will be secured with physical fasteners Objective(s): Ensure insulation remains in contact with subfloor and air barrier GA Wx Field Guide Georgia Environmental Finance Authority 327 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.5c - Attachment Before Sagging, unsupported floor insulation is not in contact with the subfloor After Fiberglass floor insulation properly installed with wire supports Tools: 1. Wire cutters 2. Stapler 3. Cordless driver/drill 4. Utility knife Materials: 1. Wire insulation supports 2. (optional) 1 X 2 furring strips or insulation support netting 3. Staples https://www.youtube.com/watch?v=b47hH7HByts 4.1301.5c - Attachment Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Batts will be secured with physical fasteners Objective(s): Ensure insulation remains in contact with subfloor and air barrier GA Wx Field Guide Georgia Environmental Finance Authority 328 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.5d - Exterior soffit Before Insulation should be secured to prevent drooping or movement Tools: 1. Utility knife 2. Drill 3. Staple gun After "Lightning rods" or twine should keep full contact with the subfloor Materials: 1. Lightning rods 2. Twine 3. Fasteners Batts should have full contact with subfloor without being Twine fastened across bays in a zig-zag pattern can also compressed be used 4.1301.5d - Exterior soffit Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): Exterior soffit material will be installed and sealed Objective(s): GA Wx Field Guide Georgia Environmental Finance Authority 329 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Cover and protect insulation 4.1301.5e - Occupant education Before Cavities have been insulated but are still exposed. Tools: 1. hammer 2. drill 3. nail gun 4. mechanical fasteners After After all accessible cavities have been air sealed and insulated, replace sheathing and siding to cover insulation. Materials: 1. OSB/Plywood(where existing) 2. Vinyl Soffit(where existing) 1 2 Seal off floor cavities using previously removed materials, Re-install any materials that were removed, such as OSB, in this case OSB and vinyl soffit. J-channels, and vinyl soffit. 4.1301.5e - Occupant education Desired Outcome: Consistent, uniform thermal boundary between conditioned and unconditioned space to prescribed R-value of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: GA Wx Field Guide Georgia Environmental Finance Authority 330 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 4.1301.5e - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 331 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.6 - Pier Construction Subfloor Insulation--Batt Installation with Rigid Barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.6a - Subfloor preparation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Sealing between house and crawl space will be completed before insulating Objective(s): Ensure airtight envelope Prevent leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 332 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.6b - Installation Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.6b - Installation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Insulation will be installed in contact with subfloor without gaps, voids, compressions, misalignments, or wind intrusions If kraft-faced batts are used, they will be installed with kraft facing to subfloor Insulation will be installed to prescribed R-value Objective(s): Insulate to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 333 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.6b - Installation Before Uninsulated floors above unconditioned spaces are an energy drain Tools: 1. Utility knife 2. Drill After Batts should fill most of joist bay and be in full contact with subfloor Materials: 1. Kraft-faced fiberglass batts to work order specifications 2. Rigid barrier -- drywall, plywood, XPS 3. Fasteners Order and install insulation as called for in Work Order If precise r-value cannot be purchased, choose option with greater r-value Install kraft-faced batts with paper against subfloor GA Wx Field Guide Georgia Environmental Finance Authority 334 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Ensure batts are in full contact with subfloor and remain uncompressed 4.1301.6c - Secure batts 4.1301.6c - Secure batts Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Batts will be secured with physical fasteners Objective(s): Ensure insulation remains in contact with subfloor Before Batts should not hang away from subfloor Tools: 1. Utility knife 2. Drill 3. Staple gun After "Lightning rods" or twine should be used to maintain contact Materials: 1. Lightning rods 2. Twine 3. Fasteners GA Wx Field Guide Georgia Environmental Finance Authority 335 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.6d - Rigid air barrier Batts should be in full contact with subfloor without being Twine fastened across bays in a zig-zag pattern can also compressed be used 4.1301.6d - Rigid air barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A rigid air barrier will be mechanically fastened to underside of floor assembly Seams and penetrations will be sealed Objective(s): Protect insulation Before Unfaced fiberglass batts can be attractive housing for pests After Rigid barrier allows for air sealing and protects batt insulation GA Wx Field Guide Georgia Environmental Finance Authority 336 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Saw 3. Drill 4. Tape measure 5. Caulk gun 4.1301.6e - Occupant education Materials: 1. Rigid material - drywall, XPS, plywood 2. Caulk 3. Fasteners Fasten rigid barrier, aligning seams with joists when possible Seal all seams with caulk to prevent Pay particular attention to complex leakage joints Remember to seal along sills 4.1301.6e - Occupant education Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area GA Wx Field Guide Georgia Environmental Finance Authority 337 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 4.1301.6e - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 338 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.7 - Pier Construction Subfloor Insulation--Loose Fill with Rigid Barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.7a - Subfloor preparation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Sealing between house and crawl space will be completed before insulating Objective(s): Prevent air leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 339 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.7b - Rigid air barrier Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.7b - Rigid air barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A rigid air barrier will be mechanically fastened to underside of floor assembly, providing 100% coverage of the floor assembly Seams and penetrations will be sealed Objective(s): Relocate air barrier Before Uninsulated floors over unconditioned spaces are an energy drain After Rigid barriers allow for air sealing while creating cavities for insulation GA Wx Field Guide Georgia Environmental Finance Authority 340 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Saw 3. Drill 4. Tape measure 5. Caulk gun 4.1301.7c - Installation Materials: 1. Rigid material - drywall, XPS, plywood 2. Fasteners 3. Caulk Fasten rigid barrier, aligning seams with joists when possible Seal all seams to prevent leakage Pay particular attention to complex joints Remember to caulk along sills 4.1301.7c - Installation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Loose fill insulation will be installed between air barrier and subfloor according to manufacturer specifications Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 341 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Objective(s): Insulate to prescribed R-value 4.1301.7c - Installation Before After Once rigid barrier has been sealed, insulation After insulating, restore rigid barrier to can be blown in prevent leakage Tools: 1. Insulation machine 2. Caulk gun Materials: 1. Loose fill insulation 2. Caulk Always wear proper PPE when working with insulation Purchase and install insulation to rvalue specified on Work Order Check manufacturer specs to ensure proper installation and density Drill hole in rigid barrier slightly larger Fill cavities formed by rigid barrier Once cavities have been filled to GA Wx Field Guide Georgia Environmental Finance Authority 342 of 491 June 22, 2018 Insulation > Floors > Accessible Floors than insulation hose with loose fill insulation 4.1301.7d - Occupant education specified r-value, prepare plug Seal rigid barrier to prevent leakage 4.1301.7d - Occupant education Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Insulation type Coverage area R-value Installed thickness and minimum settled thickness Number of bags installed in accordance with manufacturer specifications Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Ensure ability to match bags required for total area completed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 343 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.7d - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 344 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.8 - Pier Construction Subfloor Installation--Dense Pack with Rigid Barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly 4.1301.8a - Subfloor preparation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Sealing between house and crawl space will be completed before insulating Objective(s): Prevent air leakage Before Gaps around penetrations can cause air leakage and negate insulation After Sealed penetrations maintain the air barrier Tools: 1. Caulk gun Materials: 1. Caulk 2. Backer rod 3. Spray foam Be alert to high-temperature flues and chimneys and use appropriate sealants and materials. See 3.1402.1c. GA Wx Field Guide Georgia Environmental Finance Authority 345 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.8b - Rigid air barrier Locate gaps around penetrations for plumbing, electrical, etc. Fill gaps greater than 1/4 inch with backer rod or spray foam Caulk smaller gaps and to hold backer rod in place 4.1301.8b - Rigid air barrier Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A rigid air barrier will be mechanically fastened to underside of floor assembly, providing 100% coverage of the floor assembly Seams and penetrations will be sealed Objective(s): Relocate air barrier Before Uninsulated floors over unconditioned spaces are an energy drain After Rigid barriers allow for air sealing while creating cavities for insulation GA Wx Field Guide Georgia Environmental Finance Authority 346 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Tools: 1. Utility knife 2. Saw 3. Drill 4. Tape measure 5. Caulk gun 4.1301.8c - Installation Materials: 1. Rigid material - drywall, XPS, plywood 2. Fasteners 3. Caulk Fasten rigid barrier, aligning seams with joists when possible Seal all seams with caulk to prevent Pay particular attention to complex leakage seams Remember to seal along sills 4.1301.8c - Installation Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): Dense pack insulation will be installed between air barrier and subfloor according to manufacturer specifications Insulation will be installed to prescribed R-value GA Wx Field Guide Georgia Environmental Finance Authority 347 of 491 June 22, 2018 Insulation > Floors > Accessible Floors Objective(s): Insulate to prescribed R-value 4.1301.8c - Installation Before After Once rigid barrier has been sealed, insulation Rigid barrier should be sealed after insulating can be blown in to maintain air barrier Tools: 1. Insulation machine 2. Caulk gun Materials: 1. Dense packable insulation 2. Caulk Make sure to wear proper PPE when Purchase and install insulation as per Check manufacturer specifications to working with insulation Work Order install properly Drill hole in rigid barrier slightly larger Blown in insulation to density and r- Once cavity is filled, prepare plug to GA Wx Field Guide Georgia Environmental Finance Authority 348 of 491 June 22, 2018 Insulation > Floors > Accessible Floors than insulation hose value specified by work order 4.1301.8d - Occupant education reseal rigid barrier Securely seal plug into rigid barrier to prevent leakage 4.1301.8d - Occupant education Desired Outcome: Consistent, uniform thermal barrier between conditioned and unconditioned space to prescribed Rvalue of an adjoining insulated assembly Specification(s): A dated receipt signed by the installer will be provided that includes: Coverage area Thickness R-value Objective(s): Document job completion to contract specifications Confirm amount of insulation installed Comply with 16 CFR 460.17 GA Wx Field Guide Georgia Environmental Finance Authority 349 of 491 June 22, 2018 Insulation > Floors > Accessible Floors 4.1301.8d - Occupant education Best Practice Provide occupant with documentation of and about insulation installed Communicate professionally with occupant to provide information and support Documentation should include insulation material and r-value Provide occupant with copies of all documentation GA Wx Field Guide Georgia Environmental Finance Authority 350 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.1 - Insulating Flex Ducts Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier 4.1601.1a - Removal of existing flexible ducting Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): All accessible low R-value flexible ducting will be removed from premises Objective(s): Ensure installation of proper R-value ducts 4.1601.1b - Selection of new flexible ducting Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): All flexible ducting will have a minimum of R-8 Objective(s): Minimize thermal conductance of the duct system 4.1601.1c - Sizing of new flex Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Duct sizing procedures will be conducted when replacing flex duct Objective(s): Improve comfort in rooms GA Wx Field Guide Georgia Environmental Finance Authority 351 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts Improve fan performance 4.1601.1d - Installation of flex 4.1601.1d - Installation of flex Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Flexible ducts will be supported in accordance with flex duct manufacturer's directions or local codes Objective(s): Prevent sags, drops, or other bends that may interfere with correct air flow 4.1601.1e - Interior liner attachment Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Interior liner of the flex-to-metal connection will be fastened with tie bands using a tie band tensioning tool or a mechanical band Objective(s): Create a strong, secure attachment 4.1601.1f - Sealing of interior liner Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Systems used to seal flexible air ducts and flexible air connectors will comply with UL 181B and will be marked "181 B-FX" for pressure- sensitive tape or "181 B-M" for mastic Objective(s): Create an airtight connection GA Wx Field Guide Georgia Environmental Finance Authority 352 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.1h - Sealing of all accessible ducts 4.1601.1g - Attachment of exterior liner Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Liner will be pulled up onto the metal duct as far as possible before securing The exterior liner of the flex duct will be fastened with tie bands using a tie band tensioning tool Objective(s): Create a strong, durable attachment 4.1601.1h - Sealing of all accessible ducts Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): All accessible joints, seams, and connections in ductwork will be securely fastened and sealed with UL "181 B-M" compliant mastic (adhesives) or mastic-plus-embedded-fabric systems Objective(s): Minimize duct leakage 4.1601.1i - Insulation of all fittings Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): All metal fittings including boots, elbows, and take-offs will be insulated separately using an R-11 duct wrap with vapor retarder Objective(s): Minimize thermal conductance of the duct system GA Wx Field Guide Georgia Environmental Finance Authority 353 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.1j - Completeness of vapor barrier 4.1601.1j - Completeness of vapor barrier Desired Outcome: Lower conductive heat transfer by ducts and decreased condensation on duct vapor barrier Specification(s): Vapor retarder of all duct insulation will be taped to the flex duct using tape that complies with UL 181B and will be marked "181 B-FX" for pressure-sensitive tape or "181 B-M" for mastic Objective(s): Ensure a complete vapor barrier GA Wx Field Guide Georgia Environmental Finance Authority 354 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.2 - Insulating Metal Ducts Desired Outcome: Lowered thermal conductance of duct system and minimized condensation on the duct system 4.1601.2a - Selection of duct insulation material Desired Outcome: Lowered thermal conductance of duct system and minimized condensation on the duct system Specification(s): Duct insulation on all ducts located in unconditioned spaces will be a minimum of R-8, in accordance with local code, or buried under attic insulation, whichever is greater, and have an attached vapor retarder Hot humid and warm coastal regions will not bury ducts Objective(s): Decrease heat loss and condensation problems Before Uninsulated ducts in unconditioned spaces are an energy drain After Properly insulated ducts operate at much higher rates of efficiency GA Wx Field Guide Georgia Environmental Finance Authority 355 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.2b - Duct sealing Ducts in unconditioned areas should OR ducts can be buried in loose fill in Burying ducts is discouraged in warm have r-8 insulation with vapor barrier attic spaces in drier climates coastal and hot humid regions 4.1601.2b - Duct sealing Desired Outcome: Lowered thermal conductance of duct system and minimized condensation on the duct system Specification(s): All joints, seams, and connections in ductwork shall be securely fastened and sealed with UL 181 BM mastics (adhesives) or mastic- plus-embedded-fabric systems installed in accordance with the manufacturer's instructions before insulation is applied Objective(s): Minimize duct leakage Before Unsealed joints and connections need to be sealed to prevent health risks After Sealed ductwork connections help prevent leakage Tools: 1. Putty knife Materials: 1. Mesh tape 2. Mastic GA Wx Field Guide Georgia Environmental Finance Authority 356 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.2c - Attachment of duct insulation 1 Prepare work area by assessing any safety concerns 2 Wrap joint with fiberglass mesh tape 3 Apply UL 181 mastic to seal joint 4.1601.2c - Attachment of duct insulation Desired Outcome: Lowered thermal conductance of duct system and minimized condensation on the duct system Specification(s): Duct insulation will be secured to the duct system using metal wire or rot-proof nylon twine Pattern of the wire or twine will be sufficient to securely hold the duct insulation tight to the duct Objective(s): Ensure a secure connection between the duct system and the duct insulation Before Materials holding insulation in place should not compress or kink duct After Durable materials can be attached without compressing insulation GA Wx Field Guide Georgia Environmental Finance Authority 357 of 491 June 22, 2018 Insulation > Ducts > Insulating Ducts 4.1601.2d - Taping of the duct insulation Tools: 1. Scissors 2. Metal snips Materials: 1. Nylon twine 2. Wire 3. Tie bands 4.1601.2d - Taping of the duct insulation Desired Outcome: Lowered thermal conductance of duct system and minimized condensation on the duct system Specification(s): Using a tape approved by the manufacturer, all seams and connection of the duct insulation will be taped No gaps will exist between pieces of duct insulation Objective(s): Prevent gaps in the vapor barrier of the insulation Before Unsecured and sealed insulation around ducts is useless Tools: 1. Utility knife After All seams should be sealed with UL-181 duct tape to preserve vapor barrier Materials: 1. UL-181 tape 2. R-8 duct insulation with vapor barrier GA Wx Field Guide Georgia Environmental Finance Authority 358 of 491 June 22, 2018 Heating and Cooling > Forced Air > Design 5.3001.1 - Load Calculation and Equipment Selection Desired Outcome: Equipment sized properly and operates efficiently 5.3001.1a - Load calculation Desired Outcome: Equipment sized properly and operates efficiently Specification(s): Load calculation will be performed in accordance with ANSI/ACCA 2 Manual J (Residential Load Calculation) and manufacturer specifications Objective(s): Properly size equipment for load 5.3001.1b - Equipment selection Desired Outcome: Equipment sized properly and operates efficiently Specification(s): Equipment selection will be performed in accordance with ANSI/ACCA Manual S and manufacturer specifications Objective(s): Ensure equipment is able to heat, cool, and dehumidify the house 5.3001.1c - Air filtration Desired Outcome: Equipment sized properly and operates efficiently Specification(s): New central forced air HVAC systems will have minimum MERV 6 filtration with no air bypass around the filters GA Wx Field Guide Georgia Environmental Finance Authority 359 of 491 June 22, 2018 Heating and Cooling > Forced Air > Design Objective(s): Particle removal to protect equipment and help maintain indoor air quality 5.3001.1c - Air filtration GA Wx Field Guide Georgia Environmental Finance Authority 360 of 491 June 22, 2018 Heating and Cooling > Forced Air > Design 5.3001.2 - Ductwork and Termination Design Desired Outcome: Efficient air flow to all rooms ensured by proper ductwork 5.3001.2a - Duct design Desired Outcome: Efficient air flow to all rooms ensured by proper ductwork Specification(s): Duct design will be performed in accordance with ANSI/ACCA Manual D and manufacturer specifications Objective(s): Maximize air flow 5.3001.2b - Termination design Desired Outcome: Efficient air flow to all rooms ensured by proper ductwork Specification(s): Termination design will be performed in accordance with ANSI/ACCA Manual T and manufacturer specifications Objective(s): Maximize air flow Ensure occupant comfort 5.3001.2c - Air filtration Desired Outcome: Efficient air flow to all rooms ensured by proper ductwork Specification(s): New central forced air HVAC systems will have minimum MERV 6 filtration with no air bypass GA Wx Field Guide Georgia Environmental Finance Authority 361 of 491 June 22, 2018 Heating and Cooling > Forced Air > Design around the filters Objective(s): Particle removal to protect equipment and help maintain indoor air quality 5.3001.2c - Air filtration GA Wx Field Guide Georgia Environmental Finance Authority 362 of 491 June 22, 2018 Heating and Cooling > Forced Air > Site Preparation 5.3002.1 - Preparation for New Equipment Desired Outcome: Existing equipment removed safely and lawfully Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 5.3002.1a - Access Desired Outcome: Existing equipment removed safely and lawfully Specification(s): A code compliant walkway and service platform will be installed in attics, if not present Walkway and platform will be above the level of insulation (if practical) Objective(s): Ensure new equipment can be installed and serviced Maintain adequate insulation level 5.3002.1b - Utility disconnect Desired Outcome: Existing equipment removed safely and lawfully Specification(s): Electricity and fuel will be turned off prior to starting removal of old appliance Objective(s): Protect workers and occupants from injury 5.3002.1c - Refrigerant recovery Desired Outcome: Existing equipment removed safely and lawfully GA Wx Field Guide Georgia Environmental Finance Authority 363 of 491 June 22, 2018 Heating and Cooling > Forced Air > Site Preparation 5.3002.1d - Equipment disconnection Specification(s): Refrigerant will be recovered in accordance with 40 CFR 608 (EPA) by a licensed contractor Objective(s): Comply with Safe Handling of Refrigerant Law Protect workers and occupants from injury 5.3002.1d - Equipment disconnection Desired Outcome: Existing equipment removed safely and lawfully Specification(s): Refrigerant lines, plumbing, ducts, electric, control wires, vents, and fuel supply will be disconnected Objective(s): Ensure equipment can be removed 5.3002.1e - Removal Desired Outcome: Existing equipment removed safely and lawfully Specification(s): Equipment will be removed (e.g., furnace, air handler, evaporator, condensing unit) Equipment will be removed from space without damaging property and disturbing or compressing the insulation Equipment will be disposed of in accordance with local laws and regulations, recycling materials when feasible Objective(s): Provide room to install new equipment and work safely Comply with applicable disposal laws GA Wx Field Guide Georgia Environmental Finance Authority 364 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.1 - Data Plate Verification Desired Outcome: Data for commissioning and future service work is recorded 5.3003.1a - Data plate verification Desired Outcome: Data for commissioning and future service work is recorded Specification(s): Equipment will be visually inspected Information will be recorded from the equipment data plates indoors and outdoors where available Objective(s): Ensure technician has equipment data necessary for commissioning and future service work GA Wx Field Guide Georgia Environmental Finance Authority 365 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.3 - Evaluating Air Flow Desired Outcome: Air flow is properly tested Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 5.3003.3a - Total air flow Desired Outcome: Air flow is properly tested Specification(s): Total system air flow will be measured by one of the following methods: Temperature rise Flow plate Fan depressurization device (e.g., Duct Blaster, DucTester) Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable 5.3003.3b - External static pressure Desired Outcome: Air flow is properly tested Specification(s): External static pressure will be in accordance with manufacturer specifications Objective(s): Ensure equipment: GA Wx Field Guide Georgia Environmental Finance Authority 366 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance Operates as designed Operates efficiently Provides comfort Operates safely Is durable 5.3003.3c - Pressure 5.3003.3c - Pressure Desired Outcome: Air flow is properly tested Specification(s): Pressure drop across cooling coils will be in accordance with manufacturer specifications Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable 5.3003.3d - Filter Inspection Desired Outcome: Air flow is properly tested Specification(s): Visual inspection to verify filter type is per manufacturer specifications, and is clean Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable GA Wx Field Guide Georgia Environmental Finance Authority 367 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.3e - Balancing room flow: new ductwork 5.3003.3e - Balancing room flow: new ductwork Desired Outcome: Air flow is properly tested Specification(s): Proper air flow delivery to each room will be ensured by one of the following: Measuring air flow at each register OR Measuring heat rise, room pressures, and interviewing residents to ensure their comfort. Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable 5.3003.3f - Supply and return temperature measurements Desired Outcome: Air flow is properly tested Specification(s): Supply and return wet bulb (wet bulb temperature is measured for cooling systems only) and dry bulb air temperatures will be recorded Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable GA Wx Field Guide Georgia Environmental Finance Authority 368 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.3h - Temperature rise: gas and oil furnaces only 5.3003.3h - Temperature rise: gas and oil furnaces only Desired Outcome: Air flow is properly tested Specification(s): Temperature rise between the supply and return will be in accordance with manufacturer specifications Objective(s): Ensure equipment: Operates as designed Operates efficiently Provides comfort Operates safely Is durable GA Wx Field Guide Georgia Environmental Finance Authority 369 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.4 - Evaluating Electrical Service Desired Outcome: Electrical components properly tested Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 5.3003.4a - Polarity Desired Outcome: Electrical components properly tested Specification(s): Polarity of equipment will be correct Objective(s): Ensure equipment operates as designed Ensure equipment operates safely 5.3003.4b - Voltage/amperage: incoming power Desired Outcome: Electrical components properly tested Specification(s): Voltage/amperage will be in accordance with manufacturer specifications Objective(s): Ensure equipment operates as designed 5.3003.4c - Voltage: contactor Desired Outcome: Electrical components properly tested Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 370 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.4d - Grounding In accordance with manufacturer specifications, voltage drop will be within acceptable range Objective(s): Ensure contactor does not overheat Ensure equipment operates as designed 5.3003.4d - Grounding Desired Outcome: Electrical components properly tested Specification(s): Grounding must conform to meet NFPA 70 National Electric Code Objective(s): Ensure equipment operates as designed Ensure equipment operates safely 5.3003.4e - Blower amperage Desired Outcome: Electrical components properly tested Specification(s): Amperage will not exceed manufacturer full load amperage Objective(s): Ensure equipment operates as designed Ensure equipment operates efficiently Ensure equipment operates safely 5.3003.4f - Compressor amperage Desired Outcome: Electrical components properly tested GA Wx Field Guide Georgia Environmental Finance Authority 371 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.4g - Door switch operation Specification(s): Amperage will not exceed manufacturer full load amperage Objective(s): Ensure equipment operates as designed Ensure equipment operates efficiently Ensure equipment operates safely 5.3003.4g - Door switch operation Desired Outcome: Electrical components properly tested Specification(s): Blower compartment safety switch operation will be verified Objective(s): Ensure blower does not operate during service 5.3003.4h - Heat pump: emergency heat Desired Outcome: Electrical components properly tested Specification(s): Emergency heat circuit functions will be verified Objective(s): Ensure system delivers heat in case of compressor failure GA Wx Field Guide Georgia Environmental Finance Authority 372 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.5 - Refrigerant Line Inspection Desired Outcome: Refrigerant lines properly installed Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 5.3003.5a - Insulation Desired Outcome: Refrigerant lines properly installed Specification(s): All suction or vapor refrigerant lines, will be insulated to a minimum of R-4 High-side or liquid refrigerant lines will not be insulated unless specified by the equipment's manufacturer Objective(s): Ensure refrigerant lines do not gain excessive heat, or cause condensation to occur inside the building envelope 5.3003.5b - Ultraviolet (UV) protection of insulation Desired Outcome: Refrigerant lines properly installed Specification(s): If exposed to sunlight, refrigerant line insulation will be protected from UV degradation in accordance with manufacturer specifications, IRC or local code Objective(s): Install insulation so it does not degrade 5.3003.5c - Sizing Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 373 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.5d - Installation quality Refrigerant lines properly installed Specification(s): Refrigerant lines will be sized to meet manufacturer specifications for the installed equipment Objective(s): Ensure system moves appropriate volume of refrigerant 5.3003.5d - Installation quality Desired Outcome: Refrigerant lines properly installed Specification(s): Refrigerant lines will be installed without kinks, crimps, or excessive bends Objective(s): Ensure system moves appropriate volume of refrigerant 5.3003.5e - Support Desired Outcome: Refrigerant lines properly installed Specification(s): Refrigerant lines will be routed, supported, and secured to house in a manner that protects the line from damage by workers or occupants Objective(s): Ensure refrigerant lines do not move, vibrate, or sag Protect lines from damage GA Wx Field Guide Georgia Environmental Finance Authority 374 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.9 - Heating and Cooling Controls Desired Outcome: Heating and cooling controls installed and set properly 5.3003.9a - Removal of mercury- based thermostats Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Mercury based thermostat will be removed safely and disposed of in accordance with EPA regulations Objective(s): Protect workers and occupants from injury Protect environment from damage 5.3003.9b - Removal of existing controls Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Existing controls will be removed in accordance with EPA lead-safe work rules Objective(s): Protect workers and occupants from injury Protect environment from damage 5.3003.9c - Penetrations Desired Outcome: Heating and cooling controls installed and set properly Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 375 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.9d - Thermostat location Penetrations for control wiring will be sealed with a durable sealant (e.g., caulk, silicone, foam) Objective(s): Ensure controls operate as designed Minimize infiltration and exfiltration from house 5.3003.9d - Thermostat location Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Thermostats will be installed to reflect the temperature of the zone in which they are installed Thermostats will not be exposed to extreme temperatures, radiant heat sources, and drafts Objective(s): Ensure controls operate as designed 5.3003.9e - Blower speed Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Blower speed will be set for equipment in accordance with manufacturer specifications Objective(s): Ensure equipment has correct air flow 5.3003.9f - Thermostat selection: heat pump Desired Outcome: Heating and cooling controls installed and set properly Specification(s): A thermostat with equipment supplementary heat lockout that can interface with an outside temperature sensor will be selected GA Wx Field Guide Georgia Environmental Finance Authority 376 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.9g - Heat pump: supplementary heat Objective(s): Ensure supplementary heater operation is prevented when the heat pump is capable of meeting the load 5.3003.9g - Heat pump: supplementary heat Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Supplementary heat will be used on air-to-air heat pumps with conditions that allow for a balance point of less than 30F Supplementary heat lockout will be installed and set to manufacturer specifications Objective(s): Ensure supplementary heater operation is prevented when the heat pump is capable of meeting the load 5.3003.9h - Heat pump: low ambient compressor lockout Desired Outcome: Heating and cooling controls installed and set properly Specification(s): For air-to-air heat pumps, low ambient compressor lockout will be set to 0F outdoor temperature or to manufacturer specifications Objective(s): Ensure supplementary heater operation is prevented when the heat pump is capable of meeting the load 5.3003.9i - Heat pump: outside temperature sensor Desired Outcome: Heating and cooling controls installed and set properly Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 377 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.9j - Heat pump: supplementary heat wiring An outdoor temperature sensor will be installed in accordance with manufacturer specifications Objective(s): Ensure equipment operates as designed 5.3003.9j - Heat pump: supplementary heat wiring Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Supplementary heat will be wired onto second-stage heating terminal in accordance with manufacturer specifications Objective(s): Do not operate supplementary heat in stage one heating 5.3003.9k - Thermostat: installer programming Desired Outcome: Heating and cooling controls installed and set properly Specification(s): The installer options will be set to match the thermostat to the equipment and control board settings Objective(s): Ensure equipment operates as designed 5.3003.9l - Time delay settings Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Time delay for equipment will be set in accordance with manufacturer specifications and as appropriate for the climate zone (e.g., no time delay for hot humid climates) Objective(s): Maximize transfer of heat without adversely affecting indoor humidity levels GA Wx Field Guide Georgia Environmental Finance Authority 378 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.9m - Humidistat: location 5.3003.9m - Humidistat: location Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Humidistat will be installed to reflect humidity of the zone in which it is installed Humidistat will be installed in a dry location Objective(s): Ensure controls operate as designed 5.3003.9n - Occupant education Desired Outcome: Heating and cooling controls installed and set properly Specification(s): Occupants will be educated on proper use of thermostat including: Proper use of setbacks for air conditioners and heat pumps Allowing occupant comfort to determine setback for combustion heating appliances Using emergency heat appropriately Objective(s): Ensure equipment and controls operate as designed Provide comfort throughout house GA Wx Field Guide Georgia Environmental Finance Authority 379 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.10 - Condensate Drainage of Heating and Air Conditioning Equipment Desired Outcome: Equipment and condensate drain operate as designed Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 5.3003.10a - Connection Desired Outcome: Equipment and condensate drain operate as designed Specification(s): Connections in condensate drain system will be watertight Objective(s): Ensure condensate drain connections do not leak Before HVAC equipment needs condensate drainage to prevent water damage In Progress Drainage pipes should be sealed to be watertight Tools: 1. Hacksaw 2. Crimper Materials: 1. Pex piping and angles 2. PVC piping and angles 3. PVC primer and cement PVC cement is not actually glue, but rather a solvent that softens the surfaces and welds them together. Clean and dry the surfaces, then apply purple primer to prepare them for solvent welding. GA Wx Field Guide Georgia Environmental Finance Authority 380 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.10b - Insulation Coat both surfaces with PVC cement. Insert the pipe or male fitting into the female socket until it bottoms out, and then twist them a quarter turn to evenly spread the cement. Wipe away the excess cement, and wait the period of time specified by the cement manufacturer before allowing water through the connection. 5.3003.10b - Insulation Desired Outcome: Equipment and condensate drain operate as designed Specification(s): Condensate drainlines will be insulated with a minimum 1" of insulation with a vapor retarder when there is potential for condensation or freezing on the drainline Objective(s): Ensure condensate drain connections do not leak Before Once drainage pipes cross into unconditioned space, they can freeze Tools: 1. Tape measure 2. Utility knife After Pipes in unconditioned spaces should be insulated with 1" pipe insulation Materials: 1. 1" thick pipe insulation 2. Zip ties 5.3003.10c - Overflow protection: upflow Desired Outcome: Equipment and condensate drain operate as designed Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 381 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.10d - Pumps Secondary drain pan and float switch will be installed when overflow could damage finished surfaces OR Float switch in the primary condensate drain for upflow systems will be installed when overflow could damage finished surfaces Objective(s): Ensure condensate drain connections do not leak A float switch should be installed to prevent overflow and damage 5.3003.10d - Pumps Desired Outcome: Equipment and condensate drain operate as designed Specification(s): Condensate drain pumps will be installed when condensate cannot be drained by gravity Power source for pump will be installed Operation and drainage of pump will be verified Objective(s): Ensure condensate drain connections do not leak GA Wx Field Guide Georgia Environmental Finance Authority 382 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.10g - Float switch Before This AC unit is located below the drain location, requiring a pump to eject the condensate upward After Route AC condensate line into a pump and run the discharge outdoors if AC is located too low to drain by gravity Use condensate pumps equipped with safety switches. Wire the switch to the HVAC unit so that it will shut off the unit in the event the condensate pump backs up or overflows. 1 2 3 Ductless mini-split AC unit is mounted Pipe the condensate to a pump. Route the pump discharge outside or to a wall which cannot be penetrated Provide a power supply for the pump into the sewage system 5.3003.10g - Float switch Desired Outcome: Equipment and condensate drain operate as designed Specification(s): All secondary drain pans will have a float switch and be drained away through a drainline Objective(s): Prevent water overflowing the pan and draining onto the ceiling below GA Wx Field Guide Georgia Environmental Finance Authority 383 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.10g - Float switch Float switches should be installed in drainage pans to prevent overflow GA Wx Field Guide Georgia Environmental Finance Authority 384 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.14 - Combustion Analysis of Gas-Fired Appliances (LP and Natural Gas) Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications 5.3003.14a - Gas Pressure Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications Specification(s): Measurement will be verified by a certified professional in accordance with fuel type and manufacturer specifications Objective(s): Ensure equipment: Operates as designed Operates safely Operates efficiently Is durable 5.3003.14b - Place appliance in operation Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications Specification(s): Heating equipment will be placed in operation in accordance with applicable NFPA standards and manufacturer specifications when available Objective(s): Ensure equipment: GA Wx Field Guide Georgia Environmental Finance Authority 385 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance Operates as designed Operates safely Operates efficiently Is durable 5.3003.14c - Carbon dioxide (CO2)and oxygen (O2) 5.3003.14c - Carbon dioxide (CO2)and oxygen (O2) Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications Specification(s): Measurement will be verified in accordance with industry manuals (e.g., Testo, Bacharach) Objective(s): Ensure equipment: Operates as designed Operates safely Operates efficiently Is durable 5.3003.14d - Carbon monoxide (CO) in flue gas Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications Specification(s): CO in the undiluted flue gas will be less than 400 ppm air-free Objective(s): Ensure equipment: Operates as designed Operates safely Operates efficiently Is durable GA Wx Field Guide Georgia Environmental Finance Authority 386 of 491 June 22, 2018 Heating and Cooling > Forced Air > System Assessment and Maintenance 5.3003.14e - Testing/inspection holes 5.3003.14e - Testing/inspection holes Desired Outcome: Analysis of critical components and operations completed in accordance with industry and manufacturer specifications Specification(s): All testing and inspection holes will be sealed with manufacturer approved materials Objective(s): Ensure equipment: Operates as designed Operates safely Operates efficiently Is durable GA Wx Field Guide Georgia Environmental Finance Authority 387 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1 - Ducts Desired Outcome: Installed ducts effectively move the required volume of air and prevent condensation 6.6002.1a - Duct design and configuration Desired Outcome: Installed ducts effectively move the required volume of air and prevent condensation Specification(s): Ventilation ducts will be as short, straight, and smooth as possible Ventilation ducts will not be smaller than the connections to which they are attached Objective(s): Effectively move the required volume of air Before Duct work for exhaust fans should be short, smooth, and not pinch down After Duct is the same size as the outlet and makes shortest run possible Tools: 1. Metal snips 2. Drill Materials: 1. Metal duct piping 2. Fasteners See also ASHRAE 62.2-2013. GA Wx Field Guide Georgia Environmental Finance Authority 388 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1b - Duct insulation 6.6002.1b - Duct insulation Desired Outcome: Installed ducts effectively move the required volume of air and prevent condensation Specification(s): Ducts installed outside of the thermal envelope will be insulated to a minimum of R-8 or equivalent to local codes Objective(s): Prevent condensation from forming or collecting inside of the ductwork Bad Practice Uninsulated ducts in unconditioned spaces can result in condensation issues, mold, water damage, and energy losses Best Practice Insulated exhaust and fresh air ducts save energy and reduce problems from condensation, mold, and water damage Tools: 1. Utility knife 2. Metal snips 3. Wire cutters 4. Outward clinching (stitch) stapler Materials: 1. R-8 insulation with vapor barrier 2. Nylon twine or webbing 3. Light gauge galvanized wire 4. UL-181 duct tape 5. Staples See also ASHRAE 62.2-2013. Check local codes to verify that R-8 is a sufficient level of insulation. Sheet metal (for example, a curved piece of flashing or opened, flattened section of metal duct) may be used to support insulated duct without causing the insulation to be compressed. GA Wx Field Guide Georgia Environmental Finance Authority 389 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1c - Duct support 1 Gather appropriate tools 2 3 Wrap duct with fiberglass insulation. Secure insulation with wire. Install vapor barrier. Fasten with staples and tape Staple and tape seams in the vapor barrier. Support ductwork with nylon webbing or twine 6.6002.1c - Duct support Desired Outcome: Installed ducts effectively move the required volume of air and prevent condensation Specification(s): Flexible and duct board ducts and plenums will be supported every 4' using a minimum of 1 " wide material Support materials will be applied in a way that does not crimp ductwork or cause the interior dimensions of the ductwork to be less than specified (e.g., ceiling, framing, strapping); duct support must be installed in accordance with authority having jurisdiction Metal ducts will be supported by 1/2" or wider 18-gauge strapping or 12 gauge or thicker galvanized wire no less than 10' apart Objective(s): Effectively move the required volume of air Preserve the integrity of the duct system Eliminate falling and sagging GA Wx Field Guide Georgia Environmental Finance Authority 390 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1c - Duct support Before Ducts should not be allowed to droop or sag to maximize efficiency After Supports should be evenly spaced to allow for minimal distance of run Tools: 1. Drill 2. Metal snips 3. Utility knife Materials: 1. Durable straps at least 1 1/2" wide 2. 18 gauge metal strap at least 1/2" wide 3. 12 gauge galvanized wire 4. Staples 5. Fasteners See also ASHRAE 62.2-2013. BAD: Make sure supports DO NOT compress insulation or duct Flex ducts should have support straps Support straps should be at least 1 1/2 at least every 4 feet inches wide GA Wx Field Guide Georgia Environmental Finance Authority 391 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1d - Duct connections Metal ducts should be supported at 10 Metal strap should be at least 18 feet or less with wire or metal strap gauge and 1/2 inch wide Metal wire should be at least 12 gauge and galvinized 6.6002.1d - Duct connections Desired Outcome: Installed ducts effectively move the required volume of air and prevent condensation Specification(s): Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic- plus-embedded-fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Objective(s): Effectively move the required volume of air Preserve the integrity of the duct system GA Wx Field Guide Georgia Environmental Finance Authority 392 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1e - Duct materials Before Fan duct is disconnected and venting into the attic space. After Fan has been vented with sealed, insulated duct material. 1 2 Apply mastic to the connection fitting. Snug duct liner onto connection fitting. 3 Use zip tie and tensioner to secure liner to connection fitting. 4 Apply mastic to fan connection. 5 Using mechanical fasteners, secure connection fitting to fan connection. 6 Snug insulation to fan housing and strap into place. 6.6002.1e - Duct materials Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 393 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1e - Duct materials Installed ducts effectively move the required volume of air and prevent condensation Specification(s): Flexible materials will be UL 181 listed or Air Diffusion Council approved The metal gauge of rigid kitchen fan ducting shall meet code requirements or the approval of the authority having jurisdiction. Objective(s): Effectively move the required volume of air Preserve the integrity of the duct system Bad Practice Best Practice Existing duct is installed incorrectly and is not This flexible duct conforms to UL 181 UL listed Tools: 1. utility knife 2. wire cutters 3. zip tie tensioning tool 4. disposable brushes 5. hacksaw Materials: 1. rigid metal duct 2. UL 181 listed flexible duct 3. PVC pipe 4. mastic duct sealant 5. zip ties 6. UL 181 listed tape 7. PVC cement (only if using PVC pipe as duct material) 8. sheet metal screws GA Wx Field Guide Georgia Environmental Finance Authority 394 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.1e - Duct materials 1 PVC Sealant 2 Mastic GA Wx Field Guide Georgia Environmental Finance Authority 395 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2 - Terminations Desired Outcome: Securely installed termination fittings with unrestricted air flow 6.6002.2a - Hole in building shell Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): A hole no greater than a 1/4" greater than the fitting will be cut to accommodate termination fitting Objective(s): Allow for ease of weatherproofing Before Exhaust fans need exterior ventilation, often through roofs and walls After Hole should be no more than 1/4" larger than termination fitting diameter Tools: 1. Hole saw 2. Drill 3. Tape measure GA Wx Field Guide Georgia Environmental Finance Authority 396 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2b - Termination fitting 1 2 Locate the center of your vent hole by Measure the termination fitting to drilling from inside through roof determine proper hole saw diameter 3 Based on termination fitting size (in this case, 4"), mark to cut hole 4 5 Hole should be no more than 1/4" Verify hole size is correct before larger than termination fitting diameter installation 6.6002.2b - Termination fitting Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): A termination fitting with an integrated collar will be used Collar will be at least the same diameter as the exhaust fan outlet; if collar is larger than exhaust fan outlet, a rigid metal transition will be used Fitting will be appropriate for regional weather conditions and installation location on house so as not to be rendered inoperable Objective(s): Effectively move the required volume of air to the outside GA Wx Field Guide Georgia Environmental Finance Authority 397 of 491 June 22, 2018 Ventilation > Exhaust > Components Preserve integrity of the building envelope Ensure durable installation 6.6002.2c - Duct to termination connection Before Termination fittings with no collar are to be avoided Tools: 1. Drill After Properly sized ducts with snug connections to collared fittings last longer Materials: 1. Fasteners BAD: Termination fittings without collars should be avoided Termination fittings with collars should Collared fittings extend through the be used for exhaust ventilation roof to fasten securely with duct 6.6002.2c - Duct to termination connection Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): Duct will be connected and sealed to termination fitting as follows: Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally GA Wx Field Guide Georgia Environmental Finance Authority 398 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2c - Duct to termination connection spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Fasteners will not inhibit damper operation Objective(s): Effectively move the required volume of air to the outside Preserve integrity of the building envelope Ensure durable installation Before Termination is not mechanically fastened, or sealed appropriately. After Termination fitting is secure, and duct is sealed to termination. Tools: 1. wire cutters 2. disposable chip brush 3. zip tie tensioning tool 4. utility knife 5. hacksaw Materials: 1. insulated flex duct with liner 2. mastic duct sealant 3. zip tie straps 4. UL 181 listed tape GA Wx Field Guide Georgia Environmental Finance Authority 399 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2d - Weatherproof installation 1 With other end of the duct connected to the fan, cut duct to desired length. 2 Apply mastic to termination fitting. 3 Fit duct liner on to termination fitting. 4 5 With duct liner in place, use the zip tie With liner secured and zip tie tension tool to secure the liner to the trimmed, you are ready to pull the fitting. insulation to cover the fitting. 6 Ensure termination damper functions as intended. 6.6002.2d - Weatherproof installation Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): Exterior termination fitting will be flashed or weather sealed Water will be directed away from penetration Installation will not inhibit damper operation Manufacturer specifications will be followed Objective(s): Preserve integrity of the building envelope GA Wx Field Guide Georgia Environmental Finance Authority 400 of 491 June 22, 2018 Ventilation > Exhaust > Components Ensure a weather tight and durable termination installation Ensure unrestricted air flow 6.6002.2e - Pest exclusion Before After Holes for termination fitting need to be sealed Termination installation should follow to weatherproof shingling to deter water penetration Tools: 1. Hole saw 2. Caulk gun 3. Drill Materials: 1. Fasteners 2. Caulk Termination fitting is installed to repel water and sealed 6.6002.2e - Pest exclusion Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): Screen material with no less than " and no greater than " hole size in any direction will be used Installation will not inhibit damper operation or restrict air flow GA Wx Field Guide Georgia Environmental Finance Authority 401 of 491 June 22, 2018 Ventilation > Exhaust > Components Objective(s): Prevent pest entry Ensure proper air flow 6.6002.2f - Termination location Before Exhaust terminations without screens are an invitation to pest intrusion After Screen mesh should be between 1/4" and 1/ 2" in either direction 6.6002.2f - Termination location Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): Terminations will be ducted to the outdoors, which does not include unconditioned spaces such as attics and crawl spaces that are ventilated with the outdoors. Terminations will be installed: A minimum of 3' away from any property line A minimum of 3' away from operable opening to houses A minimum of 10' away from mechanical intake As required by authority having jurisdiction Objective(s): Prevent exhaust from reentering house GA Wx Field Guide Georgia Environmental Finance Authority 402 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2g - Kitchen exhaust Unsafe Exhaust vent has been improperly mounted too close to mechanical vent Tools: 1. Measuring tape 2. Hole saw 3. Drill 6.6002.2g - Kitchen exhaust Desired Outcome: Securely installed termination fittings with unrestricted air flow Specification(s): Galvanized steel, stainless steel, or copper will be used for termination fitting for kitchen exhaust Objective(s): Prevent a fire hazard GA Wx Field Guide Georgia Environmental Finance Authority 403 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.2g - Kitchen exhaust Before Kitchen exhaust vents should not be made from highly combustible materials After This roof-mounted kitchen exhaust fan is galvanized steel--heat resistant GA Wx Field Guide Georgia Environmental Finance Authority 404 of 491 June 22, 2018 Ventilation > Exhaust > Components 6.6002.3 - Exhaust-Only Ventilation--Fan Intake Grille Location Desired Outcome: Exhaust grille location optimizes either primary or local ventilation Note: 6.6002.3a - Primary whole house ventilation Desired Outcome: Exhaust grille location optimizes either primary or local ventilation Specification(s): Fan intake grille will be installed in a central location within the main body of the house Ensure it is accessible for filter change and cleaning Objective(s): Provide whole house air exchange 6.6002.3b - Local ventilation Desired Outcome: Exhaust grille location optimizes either primary or local ventilation Specification(s): Fan intake grille will be installed in the space where odor, moisture vapor, or other contaminants are generated Objective(s): Remove contaminated air at the source GA Wx Field Guide Georgia Environmental Finance Authority 405 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.1 - Surface-Mounted Ducted Desired Outcome: Surface-mounted ducted fans installed to specification Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6003.1a - Hole through interior surface Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): A hole no greater than a 1/4" greater than the assembly will be cut to accommodate fan assembly Objective(s): Minimize repair work Ensure a secure installation 6.6003.1b - Wiring Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications, and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard 6.6003.1c - Fan mounting Desired Outcome: Surface-mounted ducted fans installed to specification GA Wx Field Guide Georgia Environmental Finance Authority 406 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.1d - Backdraft damper Specification(s): Fan outlet will be oriented toward the final termination location Fan will be oriented so the equivalent length of the duct run is as short as possible Fan will be mounted securely in accordance with manufacturer specifications Objective(s): Ensure short duct run to achieve optimum air flow Ensure a secure installation Ensure fan housing does not shake, rattle, or hum when operating 6.6003.1d - Backdraft damper Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): A backdraft damper will be installed between the outlet side of the fan and the exterior Objective(s): Prevent reverse air flow when the fan is off 6.6003.1e - Duct to fan connection Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Duct-to-fan outlet will be connected and sealed as follows: Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool PVC-to-PVC materials will be fastened with approved PVC cement GA Wx Field Guide Georgia Environmental Finance Authority 407 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.1f - Fan housing seal Other specialized duct fittings will be fastened according to manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Objective(s): Exhaust to outside 6.6003.1f - Fan housing seal Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Gaps and holes in fan housing will be sealed with caulk or other sealants in accordance with manufacturer recommendations Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage through fan housing Ensure a permanent seal Prevent a fire hazard 6.6003.1g - Fan to interior surface seal Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage between house and fan GA Wx Field Guide Georgia Environmental Finance Authority 408 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.1i - Preventing air leakage caused by exhaust fans 6.6003.1h - Air flow Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Air flows in cubic feet per minute (CFM) will be measured and adjusted to meet the whole house upgrade design requirements Objective(s): Exhaust sufficient air from desired locations to outside 6.6003.1i - Preventing air leakage caused by exhaust fans Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Leakage to the house from other spaces will be prevented (e.g., garages, unconditioned crawl spaces, unconditioned attics) Objective(s): Ensure occupant health and safety 6.6003.1j - Combustion safety Desired Outcome: Surface-mounted ducted fans installed to specification Specification(s): Pressure effects will be assessed and corrected on all combustion appliances Objective(s): Ensure safe operation of combustion appliances GA Wx Field Guide Georgia Environmental Finance Authority 409 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.2 - Inline Desired Outcome: Inline fans installed to specification Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6003.2a - Wiring Desired Outcome: Inline fans installed to specification Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard 6.6003.2b - Access Desired Outcome: Inline fans installed to specification Specification(s): Fan and service switch will be accessible for maintenance according to NFPA 70 National Electric Code or local authority having jurisdiction Objective(s): Fan and service switch will be accessible for maintenance 6.6003.2c - Fan mounting Desired Outcome: Inline fans installed to specification Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 410 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.2d - Backdraft damper Fan outlet will be oriented toward the final termination location Fan will be oriented so the equivalent length of the duct run is as short as possible Fan will be mounted securely in accordance with manufacturer specifications Fan will be isolated from the building framing unless specifically designed to be directly attached Fan will be installed remotely by installing ducting from intake grille Objective(s): Ensure short duct run to achieve optimum air flow Ensure fan is installed securely Ensure fan housing or building framing does not shake, rattle, or hum when operating Minimize noise 6.6003.2d - Backdraft damper Desired Outcome: Inline fans installed to specification Specification(s): A backdraft damper will be installed between the outlet side of the fan and the exterior Objective(s): Prevent reverse air flow when the fan is off 6.6003.2e - Duct connections Desired Outcome: Inline fans installed to specification Specification(s): Ducts will be connected and sealed to the intake fan and termination fitting as follows: Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with GA Wx Field Guide Georgia Environmental Finance Authority 411 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.2f - Boot to interior surface seal welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Objective(s): Exhaust from desired location to outside Preserve integrity of the duct system and building envelope 6.6003.2f - Boot to interior surface seal Desired Outcome: Inline fans installed to specification Specification(s): Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage around intake housing Prevent a fire hazard 6.6003.2g - Air flow Desired Outcome: Inline fans installed to specification Specification(s): Air flows in CFM will be measured and adjusted to meet the design requirements Objective(s): Exhaust sufficient air from desired locations to outside GA Wx Field Guide Georgia Environmental Finance Authority 412 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.2i - Combustion safety 6.6003.2h - Preventing air leakage caused by exhaust fans Desired Outcome: Inline fans installed to specification Specification(s): Leakage to the house from other spaces will be prevented (e.g., garages, unconditioned crawl spaces, unconditioned attics) Objective(s): Ensure occupant health and safety 6.6003.2i - Combustion safety Desired Outcome: Inline fans installed to specification Specification(s): Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Exhaust fans and other exhausting systems shall be provided with makeup air or other pressure relief Objective(s): Ensure safe operation of combustion appliances GA Wx Field Guide Georgia Environmental Finance Authority 413 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3 - Through the Wall Desired Outcome: Through the wall fans installed to specification Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6003.3a - Hole in building shell Desired Outcome: Through the wall fans installed to specification Specification(s): A hole no greater than a 1/4 inch greater than the assembly will be cut to accommodate fan assembly Objective(s): Allow for ease of weatherproofing Before Measure the vent size to compare to opening. 1/4" gap or less is desired. Tools: 1. saw 2. prybar 3. goggles 4. gloves 5. measuring tape After Hole size allows sufficient room for vent installation and proper sealing. GA Wx Field Guide Georgia Environmental Finance Authority 414 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3a - Hole in building shell 6.6003.3a - Hole in building shell Desired Outcome: Through the wall fans installed to specification Specification(s): A hole no greater than a 1/4 inch greater than the assembly will be cut to accommodate fan assembly Objective(s): Allow for ease of weatherproofing Before Determine size to cut hole by measuring fan assembly and ducting After A snug fit should be ensured to minimize weatherproofing required Tools: 1. Tape measure 2. Saw 1 2 Measure the termination fitting to Hole should be no more than 1/4" determine proper hole diameter (in this larger than assembly diameter case, 4") 3 Clear wall surface and mark hole size 1/4" larger than termination fitting GA Wx Field Guide Georgia Environmental Finance Authority 415 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3b - Wiring 4 Since opening is larger than most hole saws, precision cutting is important 6.6003.3b - Wiring Desired Outcome: Through the wall fans installed to specification Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications, and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard Fan wiring showing proper grounding, wiring Fan junction box with cover installed connections, and clamp GA Wx Field Guide Georgia Environmental Finance Authority 416 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3c - Fan mounting Tools: 1. Wire strippers 2. Utility knife or cable ripper 3. Screwdriver 4. Non-contact voltage tester 5. Lineman's pliers Materials: 1. Ground wire crimp sleeves 2. Non-metallic sheathed wire (Type NMB) e.g., Romex 3. Plastic junction box and cover plate 4. Wire nuts 5. Cable staples 6. Clamp-type cable connectors Follow manufacturer's specifications and applicable codes when wiring newly installed equipment. 1 Make all connections to existing wiring in junction boxes. Use wire nuts on line and neutral and crimp sleeves on ground 6.6003.3c - Fan mounting Desired Outcome: Through the wall fans installed to specification Specification(s): Fan outlet will be oriented toward the final termination location Fan will be oriented so the equivalent length of the duct run is as short as possible Fan will be mounted securely according to manufacturer specifications Objective(s): Install mounting fan securely Ensure fan housing does not shake, rattle, or hum when operating GA Wx Field Guide Georgia Environmental Finance Authority 417 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3d - Weatherproof installation Best Practice Using provided holes or template, drill holes and fasten fan securely. Tools: 1. drill 2. drill bits Materials: 1. fasteners 6.6003.3d - Weatherproof installation Desired Outcome: Through the wall fans installed to specification Specification(s): Exterior termination fitting will be flashed or weather sealed Water will be directed away from penetration Termination fitting installation will not inhibit damper operation Manufacturer specifications will be followed Objective(s): Preserve integrity of the building envelope Ensure a weather tight and durable installation Ensure unrestricted air flow GA Wx Field Guide Georgia Environmental Finance Authority 418 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3e - Backdraft damper Best Practice Apply sealant behind termination cap, taking care to apply sealant to all edges. Best Practice Termination is sealed and securely attached to the wall. Tools: 1. caulk gun 2. drill 3. drill bits 4. reciprocating saw 5. drywall saw or utility knife Materials: 1. weatherproof termination kit with pest screen 2. caulk or equivalent sealant 3. mechanical fasteners 1 With the termination cap pushed against the wall, wipe away excess sealant and install mechanical fasteners. 2 Ensure damper swings open freely, and closes with a tight fit. 6.6003.3e - Backdraft damper Desired Outcome: Through the wall fans installed to specification Specification(s): A backdraft damper will be installed between the outlet side of the fan and the exterior Objective(s): Prevent reverse air flow when the fan is off GA Wx Field Guide Georgia Environmental Finance Authority 419 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3f - Fan housing seal Best Practice Damper should be installed to maintain exterior air barrier 6.6003.3f - Fan housing seal Desired Outcome: Through the wall fans installed to specification Specification(s): Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage through fan housing Ensure a permanent seal to the building air barrier Before Apply sealant behind termination cap. After Compress sealant ensuring an airtight, weatherproof seal. GA Wx Field Guide Georgia Environmental Finance Authority 420 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3g - Fan to interior surface seal Tools: 1. caulk gun Materials: 1. weatherproof, code approved caulk 6.6003.3g - Fan to interior surface seal Desired Outcome: Through the wall fans installed to specification Specification(s): Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage around intake housing Prevent a fire hazard In Progress Apply approved sealant around interior opening. Fan housing should compress sealant. Tools: 1. caulk gun Materials: 1. code approved caulk 6.6003.3i - Air flow Desired Outcome: Through the wall fans installed to specification Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 421 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3j - Preventing air leakage caused by exhaust fans Air flows in CFM will be measured and adjusted to meet the design requirements Objective(s): Exhaust sufficient air from desired locations to outside Best Practice Using a digital manometer, exhaust flow meter and fabricated cover, measure the fan flow. Best Practice Air flow should be within acceptable limits for the location of the fan. Tools: 1. exhaust fan flow meter 2. manometer Materials: 1. a fabricated cover for fans larger than the flow meter 6.6003.3j - Preventing air leakage caused by exhaust fans Desired Outcome: Through the wall fans installed to specification Specification(s): Leakage to the house from other spaces will be prevented (e.g., garages, unconditioned crawl spaces, unconditioned attics) Objective(s): Ensure occupant health and safety GA Wx Field Guide Georgia Environmental Finance Authority 422 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3k - Combustion safety Best Practice The barrier between conditioned and unconditioned spaces should be sealed See also SWS 3.1501.1 Air Sealing Garage Penetrations. 6.6003.3k - Combustion safety Desired Outcome: Through the wall fans installed to specification Specification(s): Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Make-up air will be provided in accordance with the current version of ASHRAE 62.2 and in compliance with the authority having jurisdiction. Objective(s): Ensure safe operation of combustion appliances GA Wx Field Guide Georgia Environmental Finance Authority 423 of 491 June 22, 2018 Ventilation > Exhaust > Fans 6.6003.3k - Combustion safety Before Installing new ventilation can cause imbalances within the house After Test that depressurization limit is not being exceeded by new ventilation Tools: 1. Manometer See SWS 2.0299.1a-i for CAZ depressurization limits 1 2 3 Run depressurization testing on house If depressurization limit is exceeded, to ensure new ventilation isn't causing mitigate to eliminate safety risk unsafe conditions Mitigate safety risk with make-up air or other pressure relief 4 After mitigation, verify that GA Wx Field Guide Georgia Environmental Finance Authority 424 of 491 June 22, 2018 Ventilation > Exhaust > Fans depressurization limits are not being exceeded 6.6003.3k - Combustion safety GA Wx Field Guide Georgia Environmental Finance Authority 425 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1 - Clothes Dryer Desired Outcome: Dryer air exhausted efficiently and safely 6.6005.1a - Clothes dryer ducting Desired Outcome: Dryer air exhausted efficiently and safely Specification(s): Clothes dryers will be ducted to the outdoors, which does not include unconditioned spaces such as attics and crawl spaces that are ventilated with the outdoors As short a run as practical of rigid sheet metal or semi-rigid sheet metal venting material will be used in accordance with manufacturer specifications Dryer ducts exceeding 35' in duct equivalent length will have a dryer booster fan installed Plastic venting material will not be used Uninsulated clothes dryer duct will not pass through unconditioned spaces such as attics and crawl spaces, except where allowed by the authority having jurisdiction Ducts will be connected and sealed as follows: UL listed foil type or semi-rigid sheet metal to rigid metal will be fastened with clamp Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material In addition: Sheet metal screws or other fasteners that will obstruct the exhaust flow will not be used Condensing dryers will be plumbed to a drain Objective(s): Preserve integrity of building envelope GA Wx Field Guide Georgia Environmental Finance Authority 426 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents Effectively move air from clothes dryer to outside 6.6005.1a - Clothes dryer ducting Before After Dryer is vented outside, but with the incorrect Dryer is vented outdoors with semi-rigid material. metal duct. Run is as short and straight as possible ensuring maximum flow. Tools: 1. tin snips 2. drill 3. wire cutters Materials: 1. metal flex duct 2. dryer vent kit 3. hose clamps 4. UL 181 listed tape 1 2 Disconnect existing vent pipe from termination. If hose clamp is installed, save for reuse. Disconnect existing vent pipe from dryer. 3 Attach approved vent material to termination vent. Termination vent may need to be trimmed. GA Wx Field Guide Georgia Environmental Finance Authority 427 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1b - Termination fitting 4 5 Trim metal vent to ensure the run is as Connect vent pipe to dryer. short and straight as possible. 6 Dryer vents to outdoors, and exhaust damper is functional. 6.6005.1b - Termination fitting Desired Outcome: Dryer air exhausted efficiently and safely Specification(s): Termination fitting manufactured for use with dryers will be installed A backdraft damper will be included, as described in termination fitting detail Objective(s): Preserve integrity of building envelope Effectively move air from clothes dryer to outside Best Practice Termination fittings for dryers should have backdraft dampers GA Wx Field Guide Georgia Environmental Finance Authority 428 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1c - Make-up air Most modern dryer vents have a built-in backdraft damper To minimize pest intrusion, mesh >1/4" square can be used (see 6.6002.2e) 6.6005.1c - Make-up air Desired Outcome: Dryer air exhausted efficiently and safely Specification(s): If natural draft combustion appliances are present and if worst-case CAZ and/or other performance based testing is conducted and indicates a need for make-up air, make-up air will be provided in accordance with the current version of ASHRAE 62.2 and in compliance with the authority having jurisdiction. If natural draft combustion appliances are present and if no performance based testing is conducted, make-up air will be provided prescriptively in accordance with the current version of ASHRAE 62.2 and in compliance with the authority having jurisdiction. Objective(s): Preserve integrity of building envelope Effectively move air from clothes dryer to outside GA Wx Field Guide Georgia Environmental Finance Authority 429 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1d - Combustion safety Best Practice A passive inlet vent can provide make-up air for dryer exhaust Tools: 1. Drill 2. Hole saw 3. Caulk gun Materials: 1. Caulk sealant 2. Fasteners 6.6005.1d - Combustion safety Desired Outcome: Dryer air exhausted efficiently and safely Specification(s): Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Objective(s): Ensure safe operation of combustion appliances Ensure occupant health and safety GA Wx Field Guide Georgia Environmental Finance Authority 430 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1d - Combustion safety Appliance exhaust, such as that for a dryer, can cause depressurization After Test to verify combustion appliances are within depressurization limits Tools: 1. Manometer See SWS 2.0299.1a-i for CAZ depressurization limits 1 2 3 Run depressurization testing on house If depressurization limit is exceeded, to ensure new ventilation isn't causing mitigate to eliminate safety risk unsafe conditions Install make-up air, such as a passive inlet vent, or other pressure relief 4 After mitigation, verify that depressurization limit is not being GA Wx Field Guide Georgia Environmental Finance Authority 431 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents exceeded 6.6005.1e - Occupant education 6.6005.1e - Occupant education Desired Outcome: Dryer air exhausted efficiently and safely Specification(s): Occupant will be instructed to keep lint filter and termination fitting clean Occupant will be instructed to keep dryer booster fan clean, if present Occupant will be instructed on clothes dryer operation safety including information on items that must not be placed in the clothes dryer (items with any oil or other flammable liquid on it, foam, rubber, plastic or other heat-sensitive fabric, glass fiber materials) Objective(s): Effectively move air from clothes dryer to outside Unsafe Neglect of clothes dryer maintenance can cause fire hazards Best Practice Occupants should be taught to clean lint filters and termination fittings GA Wx Field Guide Georgia Environmental Finance Authority 432 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.1e - Occupant education In homes with booster fans, occupant should know location and how to clean Occupants should be taught never to put flammable articles in dryer (in this case, oily rags) GA Wx Field Guide Georgia Environmental Finance Authority 433 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.2 - Kitchen Range Desired Outcome: Kitchen range fan installed to specification Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6005.2b - Fan venting Desired Outcome: Kitchen range fan installed to specification Specification(s): Kitchen range fans will be vented to the outdoors Recirculating fans will not be used as a ventilating device Objective(s): Remove cooking contaminants from the house Preserve integrity of building envelope Before Recirculating fans over ranges do not actually remove contaminants Refer to ASHRAE 62.2-2013 After Daylight visible through dampered kitchen exhaust proves venting access GA Wx Field Guide Georgia Environmental Finance Authority 434 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.2c - Fan ducting 6.6005.2c - Fan ducting Desired Outcome: Kitchen range fan installed to specification Specification(s): Kitchen range fans will be ducted to the outdoors As short a run as practical of smooth wall metal duct will be used, following manufacturer specifications Ducting will be connected and sealed as follows: Metal-to-metal will be fastened with a minimum of three equally spaced screws Other metal-to-metal connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes For down-draft exhaust systems, PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Objective(s): Preserve integrity of building envelope Effectively move air from range to outside Before After Exhaust duct should be smooth-walled and in Daylight visible through dampered kitchen as short a run as possible exhaust proves outside access GA Wx Field Guide Georgia Environmental Finance Authority 435 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.2d - Termination fitting Tools: 1. Drill 2. Putty knife 3. Tape measure 4. Metal snips 5. Saw Materials: 1. Round metal ducting 2. Mastic 3. Fiberglass mesh tape 4. Fasteners See also 6.6002.1d. Note: Only smooth-wall metal duct will be used, except for down-draft exhaust systems where PVC is acceptable as well. Flex duct is NOT acceptable for kitchen fan exhaust application. 1 Duct run should be as smooth and short as possible 2 3 Duct should be fastened securely with Then joints should be secured with three evenly-spaced screws fiberglass tape 4 Finally, joint should be secured with UL-181 mastic 6.6005.2d - Termination fitting Desired Outcome: Kitchen range fan installed to specification Specification(s): Termination fitting will be installed including a backdraft damper, as described in termination fitting GA Wx Field Guide Georgia Environmental Finance Authority 436 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents detail Objective(s): Ensure safe operation of combustion appliances Ensure occupant health and safety 6.6005.2e - Make-up air Before Kitchen fans should exhaust to the exterior, not just recirculate air After Exhaust fans should have backdraft dampers Backdraft damper on roof mounted exhaust fan An interior backdraft damper can also be installed for good measure 6.6005.2e - Make-up air Desired Outcome: Kitchen range fan installed to specification Specification(s): If natural draft combustion appliances are present and if worst-case CAZ and/or other performance based testing is conducted and indicates a need for make-up air, make-up air will be provided in GA Wx Field Guide Georgia Environmental Finance Authority 437 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 6.6005.2f - Combustion safety accordance with the current version of ASHRAE 62.2 and in compliance with the authority having jurisdiction. If natural draft combustion appliances are present and if no performance based testing is conducted, make-up air will be provided prescriptively in accordance with the current version of ASHRAE 62.2 and in compliance with the authority having jurisdiction. Objective(s): Ensure safe operation of combustion appliances Ensure occupant health and safety Before If kitchen exhaust is venting at more than 200 cfm, provide make-up air After A passive inlet vent can provide make-up air for kitchen exhaust Tools: 1. Drill 2. Hole saw 3. Caulk gun Materials: 1. Caulk sealant 2. Fasteners 6.6005.2f - Combustion safety Desired Outcome: Kitchen range fan installed to specification Specification(s): Pressure effects caused by fans will be assessed and corrected when found outside of combustion safety standards Objective(s): GA Wx Field Guide Georgia Environmental Finance Authority 438 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents Ensure safe operation of combustion appliances Ensure occupant health and safety 6.6005.2f - Combustion safety Before Kitchen exhaust fans can cause combustion appliances to depressurize After Test that combustion appliances are operating within depressurization limit Tools: 1. Manometer See SWS 2.0299.1a-i for CAZ depressurization limits 1 2 3 Run depressurization testing on house If appliances exceed depressuization Install a source of make-up air, such to ensure new ventilation isn't causing limit, mitigate to reduce risk as a passive inlet vent unsafe conditions GA Wx Field Guide Georgia Environmental Finance Authority 439 of 491 June 22, 2018 Ventilation > Exhaust > Appliance Exhaust Vents 4 After mitigation, verify that depressurization limits are not being exceeded 6.6005.2f - Combustion safety GA Wx Field Guide Georgia Environmental Finance Authority 440 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.1 - Outside Air Ventilation Supply Ducts Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Note: 6.6102.1a - Duct design and configuration Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): Ventilation ducts will be as short, straight, and smooth as possible Ventilation ducts will not be smaller than the connections to which they are attached Objective(s): Effectively move the required volume of air 6.6102.1b - Duct insulation Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): Ventilation supply ducts installed outside of the thermal envelope will be insulated to a minimum of R-8 or equivalent to local codes Objective(s): Prevent moisture condensation 6.6102.1c - Duct support Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): Flexible and duct board ducts and plenums will be supported every 4' using a minimum of 1 " wide GA Wx Field Guide Georgia Environmental Finance Authority 441 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.1d - Duct connections material Support materials will be applied in a way that does not crimp ductwork or cause the interior dimensions of the ductwork to be less than specified (e.g., ceiling, framing, strapping); duct support must be installed in accordance with authority having jurisdiction Metal ducts will be supported by 1/2" or wider 18-gauge strapping or 12 gauge or thicker galvanized wire no less than 10' apart Objective(s): Effectively move the required volume of air Preserve integrity of the ventilation supply duct system Eliminate falling and sagging 6.6102.1d - Duct connections Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): All connections will have a contact overlap of at least 1" Ducts will be connected and sealed as follows: Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded- fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool Flexible duct between the cable tie and end of metal or PVC duct will be screwed PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications Outdoor air ventilation supply ducts attached to the return side of forced air systems will be: Attached as close to the heating, ventilation, and air conditioning (HVAC) systems fan as possible while remaining in compliance with manufacturer specifications GA Wx Field Guide Georgia Environmental Finance Authority 442 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.1e - Duct materials Set up to provide filtration of outdoor ventilation air before reaching the HVAC system (for minimum MERV 6 filter) Attached via a mechanically fastened takeoff collar All joints and connections in ductwork will be fastened and sealed with UL181B or 181B-M welds, gaskets, adhesive mastics, or mastic-plus-embedded-fabric systems Objective(s): Effectively move the required volume of air Preserve integrity of the ventilation supply duct system and building envelope 6.6102.1e - Duct materials Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): Flexible air duct material will meet UL 181, NFPA 90A/90B, International Mechanical Code, or the Uniform Mechanical Code Objective(s): Effectively move the required volume of air Preserve integrity of the duct system and building envelope 6.6102.1f - Outdoor air intake location Desired Outcome: Ventilation supply ducts effectively move the required amount of air and prevent condensation Specification(s): Outdoor air intake will be installed in accordance with the following: A minimum of 6" from grade A minimum of 10' from contaminant sources or exhaust outlets Above local snow or flood line A minimum of 18" above an asphalt based roof Never on a flat roof As required by authority having jurisdiction GA Wx Field Guide Georgia Environmental Finance Authority 443 of 491 June 22, 2018 Ventilation > Supply > Components Objective(s): Prevent contaminants from entering house Ensure unrestricted air flow 6.6102.1f - Outdoor air intake location GA Wx Field Guide Georgia Environmental Finance Authority 444 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.2 - Intakes Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants 6.6102.2a - Hole in building shell Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): A hole no greater than a 1/4" greater than the fitting will be cut to accommodate intake fitting Objective(s): Ensure a weather tight installation 6.6102.2b - Intake fitting Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Collar will be at least the same diameter as the duct; if collar is larger than duct, a rigid metal transition will be used Fitting will be appropriate for regional weather conditions and installation location on house so as not to be rendered inoperable Objective(s): Effectively draw the required volume of air from the outdoors Preserve integrity of the building envelope Ensure durable installation 6.6102.2c - Occupant education Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 445 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.2d - Damper (if applicable) Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Intake fitting will be labeled "ventilation air intake" Occupant will be instructed to keep yard debris and other contaminants clear of the intake Objective(s): Ensure unrestricted air flow 6.6102.2d - Damper (if applicable) Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): The damper will be installed to open in the direction of the desired flow Damper will close when system is off Objective(s): Ensure unrestricted air flow 6.6102.2e - Connection to intake fitting Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Duct to intake fitting will be connected and sealed as follows: Round metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Other metal-to-metal or metal-to-PVC connections will be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems, or tapes Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool Flexible duct between tie band and end of metal or PVC duct will be screwed into place PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer GA Wx Field Guide Georgia Environmental Finance Authority 446 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.2f - Weatherproofing specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material Ensure fasteners do not inhibit intake damper operation Objective(s): Preserve integrity of the building envelope Ensure a weather tight and durable intake installation Ensure unrestricted air flow 6.6102.2f - Weatherproofing Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Exterior termination fitting will be flashed or weather sealed Water will be directed away from penetration Installation will not inhibit damper operation Manufacturer specifications will be followed Objective(s): Preserve integrity of the building envelope Ensure a weather tight and durable intake installation Ensure unrestricted air flow 6.6102.2g - Pest exclusion Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Corrosion resistant screen, louver, or grille material no less than " and no greater than " hole size in any direction will be used, or as specified by authority having jurisdiction GA Wx Field Guide Georgia Environmental Finance Authority 447 of 491 June 22, 2018 Ventilation > Supply > Components Screen will be installed so it does not inhibit intake damper operation Objective(s): Prevent pest entry Ensure unrestricted air flow 6.6102.2h - Intake location 6.6102.2h - Intake location Desired Outcome: Intake optimizes air flow while limiting the entry of insects, debris, and contaminants Specification(s): Intake will be installed according to the following: A minimum of 6" from grade A minimum of 10' from contaminant sources or exhaust outlets Above local snow or flood line A minimum of 18" above an asphalt based roof Never on a flat roof As required by authority having jurisdiction Objective(s): Prevent contaminants from entering house Ensure unrestricted air flow GA Wx Field Guide Georgia Environmental Finance Authority 448 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.3 - Intake for Ventilation Air to Forced Air System Used for Heating or Cooling Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6102.3a - Forced air system requirements Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): Existing forced air system leakage to outside will be less than 10% of the air handler flow when measured at 25 pascals with reference to outside Any portion of the return located inside the combustion appliance zone will be air sealed Objective(s): Reduce migration of pollutants 6.6102.3b - Wiring Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard GA Wx Field Guide Georgia Environmental Finance Authority 449 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.3d - Mounting intake duct 6.6102.3c - Access Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): Motorized damper and service switch will be accessible for maintenance in accordance with required code or authority having jurisdiction Objective(s): Ensure accessibility for maintenance 6.6102.3d - Mounting intake duct Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): Ventilation duct will be attached as close to the HVAC system's fan as possible while remaining in compliance with HVAC manufacturer specifications Filtration of ventilation air will be provided before passing through the thermal conditioning components Duct will be connected to intake fitting Connection and seal will be performed according to supply duct detail Objective(s): Ensure short duct run to achieve optimum air flow Preserve integrity of the duct system and building envelope 6.6102.3e - Motorized damper Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): A motorized damper or equivalent technology will be installed between the intake fitting and the GA Wx Field Guide Georgia Environmental Finance Authority 450 of 491 June 22, 2018 Ventilation > Supply > Components 6.6102.3f - Intake filter return side of the air handler Air flow will be provided by sequenced operation of the damper or equivalent technology Objective(s): Prevent air flow when none is desired 6.6102.3f - Intake filter Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): An accessible filter will be installed Filter will be able to remove contaminants consistent with at least minimum efficiency reporting value (MERV) 6 or better when tested in accordance with ANSI/ASHRAE 52.2 Filter or air cleaning systems that intentionally produce ozone will not be allowed Objective(s): Ensure occupant health and safety Preserve integrity of the building envelope 6.6102.3g - Occupant education Desired Outcome: Intake reduces pollutant entry, is easily maintained, has proper flow, and enhances house durability Specification(s): Occupant will be educated on how and when to change filter Objective(s): Protect occupant health and safety Preserve integrity of the building envelope GA Wx Field Guide Georgia Environmental Finance Authority 451 of 491 June 22, 2018 Ventilation > Supply > Fans 6.6103.1 - Inline or Multi-Port Desired Outcome: Inline or multi-port fan installed in accordance with specifications Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6103.1a - Wiring Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications, and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard 6.6103.1b - Access Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): Fan and service switch will be accessible for maintenance, service, and replacement in accordance with applicable code or authority having jurisdiction Objective(s): Ensure accessibility for maintenance 6.6103.1c - Fan mounting Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 452 of 491 June 22, 2018 Ventilation > Supply > Fans 6.6103.1d - Damper (required for intermittent operation) Fan will be oriented with inlet toward the fan intake fitting Fan will be oriented so the equivalent length of the duct run is as short as possible Fan will be securely mounted in accordance with manufacturer specifications Fan will be isolated from the building framing unless specifically designed to be directly attached Fan will be installed remotely by ducting from supply register or grilles Objective(s): Ensure short duct run to achieve optimum air flow Ensure fan is mounted securely Ensure fan housing or building framing does not shake, rattle, or hum when operating Minimize noise 6.6103.1d - Damper (required for intermittent operation) Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): Damper will be installed to open in the direction of the desired flow Damper will close when system is off Objective(s): Ensure unrestricted air flow 6.6103.1e - Duct connections Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): Ducts will be connected and sealed to the intake fitting, fan, and register or grilles as follows: Metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced GA Wx Field Guide Georgia Environmental Finance Authority 453 of 491 June 22, 2018 Ventilation > Supply > Fans 6.6103.1f - Filter screws Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool Flexible duct between the cable tie and end of metal or PVC duct will be screwed PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications All joints and connections in ductwork will be fastened and sealed with UL 181B or 181B-M welds, gaskets, adhesive mastics, or mastic-plus- embedded-fabric systems Objective(s): Provide desired air flow Preserve integrity of the duct system and building envelope 6.6103.1f - Filter Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): An accessible filter will be installed between the intake fitting and the fan Contaminant removal will be consistent with at least minimum efficiency reporting value (MERV) 6 or better when tested in accordance with ANSI/ASHRAE 52.2 Filter or air cleaning systems that intentionally produce ozone will not be allowed Objective(s): Ensure occupant health and safety Preserve integrity of the building envelope 6.6103.1g - Occupant education Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): GA Wx Field Guide Georgia Environmental Finance Authority 454 of 491 June 22, 2018 Ventilation > Supply > Fans 6.6103.1h - Boot to interior surface seal Occupant will be educated on how and when to change filter Objective(s): Ensure occupant health and safety 6.6103.1h - Boot to interior surface seal Desired Outcome: Inline or multi-port fan installed in accordance with specifications Specification(s): All gaps between boot and interior surface will be air sealed Gypsum edge will be wetted before applying water-based sealant Sealants will be continuous and be in accordance with IRC Objective(s): Prevent air leakage around intake housing Ensure a permanent seal to the building air barrier Prevent a fire hazard GA Wx Field Guide Georgia Environmental Finance Authority 455 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Air Flow Requirements 6.6201.2 - Primary Ventilation Air Flow between Rooms Desired Outcome: Air circulates freely between rooms 6.6201.2a - Balancing pressure Desired Outcome: Air circulates freely between rooms Specification(s): An appropriate means of pressure balancing will be installed (e.g., transfer grilles, jumper ducts, individual room returns) No room will exceed +/- 3 pascals with reference to the common area with all interior doors closed and ventilation systems running Objective(s): Ensure free flow of air between rooms Preserve integrity of the building envelope Before If reading is >+/-3pa, interior ventilation needs to be installed After Passive door vents and individual room returns are two possibilities GA Wx Field Guide Georgia Environmental Finance Authority 456 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Air Flow Requirements 6.6201.2a - Balancing pressure 1 2 With interior doors open, put reference Take baseline reading hose to exterior 3 Turn on exhaust fans and close interior doors 4 With hose under door, check pressure again. Readings >+/-3pa are no good and require interior ventilation GA Wx Field Guide Georgia Environmental Finance Authority 457 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.1 - Controls Desired Outcome: Fan controls support ventilation strategy Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6202.1a - Primary ventilation fan (whole-house volume) Desired Outcome: Fan controls support ventilation strategy Specification(s): Controls will be used that can meet the following conditions: Run fan continuously or intermittently depending upon the intended schedule of operation Operate fan to produce the intended flow for each intended flow setting Objective(s): Deliver intended air exchange Ensure fan controls meet intended ventilation strategy 6.6202.1b - Local exhaust--local fan Desired Outcome: Fan controls support ventilation strategy Specification(s): Controls will be used that meet the following conditions: Run fan continuously or intermittently depending on the intended schedule of operation Run fan for intended time for timed operation Operate fan to produce the intended flow for each intended flow setting Objective(s): Deliver intended air exchange GA Wx Field Guide Georgia Environmental Finance Authority 458 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components Ensure fan controls meet intended ventilation strategy 6.6202.1c - Wiring 6.6202.1c - Wiring Desired Outcome: Fan controls support ventilation strategy Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications, and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard Ensure fan controls meet intended ventilation strategy 6.6202.1d - Manual override Desired Outcome: Fan controls support ventilation strategy Specification(s): A labeled switch for manual override will be included for the ventilation system Objective(s): Ensure fan controls meet intended ventilation strategy 6.6202.1e - Occupant education Desired Outcome: Fan controls support ventilation strategy Specification(s): A system operation guide designed for occupants (non-professionals) will be provided to explain how and why to operate system A label indicating the presence and purpose of the ventilation system will be included or a copy of the system operation guide will be posted at the electrical panel GA Wx Field Guide Georgia Environmental Finance Authority 459 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components Objective(s): Educate occupants about system operation and importance Deliver intended air exchange 6.6202.1e - Occupant education GA Wx Field Guide Georgia Environmental Finance Authority 460 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.2 - Heat Recovery Ventilator (HRV) and Energy Recovery Ventilator (ERV) Installation Desired Outcome: HRV and ERV systems installed to specifications Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 6.6202.2a - Wiring Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Wiring will be installed in accordance with original equipment manufacturer specifications, and local and national electrical and mechanical codes Objective(s): Prevent an electrical hazard 6.6202.2b - Access Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Fans, service switch, filters, drain, and drain pan will be accessible for maintenance in accordance with authority having jurisdiction Objective(s): Maintain designed air flows and system performance Ensure occupant health and safety GA Wx Field Guide Georgia Environmental Finance Authority 461 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.2d - Backdraft dampers (required for intermittent operation) 6.6202.2c - Fan mounting Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Fan will be securely mounted in accordance with manufacturer specifications Fan will be oriented so the equivalent length of the duct run is as short as possible; calculate "equivalent length" in accordance with ANSI/ACCA Manual D (Residential Duct Systems) Fan will be isolated from the building framing unless specifically designed to be directly attached Objective(s): Ensure short duct runs achieve optimum air flows Ensure fan is mounted securely Ensure fan housing or building framing does not shake, rattle, or hum when operating Minimize noise 6.6202.2d - Backdraft dampers (required for intermittent operation) Desired Outcome: HRV and ERV systems installed to specifications Specification(s): A backdraft damper will be installed between the heat recovery ventilator (HRV) or energy recovery ventilator (ERV) and the exterior, unless the system operates continuously Outdoor air intakes and exhausts will be equipped with automatic or gravity dampers that close when the ventilation system is not operating Objective(s): Prevent reverse air flow when the system is off GA Wx Field Guide Georgia Environmental Finance Authority 462 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.2f - Duct connections 6.6202.2e - Installation of fittings Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Collar will be at least the same diameter as the exhaust fan outlet; if collar is larger than exhaust fan outlet, a rigid metal transition will be used Fitting will be appropriate for regional weather conditions and installation location on house so as not to be rendered inoperable Objective(s): Achieve the desired air flows to and from the designated locations Ensure unrestricted air flow Preserve integrity of the building envelope 6.6202.2f - Duct connections Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Ducts will be connected to applicable registers or grilles, collector box, HRV or ERV, intake fitting, and termination fitting Ducts will be connected and sealed as follows: Metal-to-metal or metal-to-PVC will be fastened with a minimum of three equally spaced screws Flexible duct-to-metal or flexible duct-to-PVC will be fastened with tie bands using a tie band tensioning tool Flexible duct between tie band and end of metal or PVC duct will be screwed into place PVC-to-PVC materials will be fastened with approved PVC cement Other specialized duct fittings will be fastened in accordance with manufacturer specifications In addition to mechanical fasteners, duct connections will be sealed with UL 181B or 181B-M listed material GA Wx Field Guide Georgia Environmental Finance Authority 463 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.2g - Duct layout Objective(s): Achieve the desired air flows to and from the desired locations Preserve integrity of the duct system and building envelope 6.6202.2g - Duct layout Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Air to be exhausted to the outdoors will not be taken directly from the forced air system Supply ducts attached to the return side of forced air systems will be: Attached as close to the HVAC system's fan as possible while remaining in compliance with manufacturer specifications Set up to provide filtration of outdoor ventilation air before reaching the HVAC system with minimum MERV 6 filter Connected to the intake fitting Connected and sealed in accordance with the supply duct detail Objective(s): Achieve the desired air flows to and from the desired locations Preserve integrity of duct system and house Ensure occupant health and safety 6.6202.2h - Insulation Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Ducts installed outside of the thermal envelope will be insulated to a minimum of R-8 or equivalent to local codes Objective(s): Preserve integrity of the duct system by eliminating condensation GA Wx Field Guide Georgia Environmental Finance Authority 464 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components 6.6202.2i - Sealant selection 6.6202.2i - Sealant selection Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Gap between registers or grilles and interior surface will be sealed Sealants will be compatible with their intended surfaces Sealants will be continuous and meet fire barrier specifications Objective(s): Prevent air leakage around registers or grilles Ensure a permanent seal Prevent a fire hazard 6.6202.2j - Balance and flow Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Air flows will be measured and adjusted to match to the system's intent Objective(s): Achieve the desired air flows to and from the desired locations 6.6202.2k - Occupant education Desired Outcome: HRV and ERV systems installed to specifications Specification(s): Occupant will be educated on how and when to change filter and clean drain pan, if applicable, according to manufacturer specifications GA Wx Field Guide Georgia Environmental Finance Authority 465 of 491 June 22, 2018 Ventilation > Whole Building Ventilation > Components Objective(s): Ensure occupant health and safety Preserve integrity of system 6.6202.2k - Occupant education GA Wx Field Guide Georgia Environmental Finance Authority 466 of 491 June 22, 2018 Ventilation > Additional Resources > Codes and Standards Resources 6.9901.1 - Supplemental Ventilation Information--ASHRAE 62.2 Desired Outcome: To provide supplemental ventilation information--ASHRAE 62.2 6.9901.1a - Ventilation fan flow rate Desired Outcome: To provide supplemental ventilation information--ASHRAE 62.2 Specification(s): ASHRAE Standard 62.2 and the calculation of the infiltration credit allow adjustments to primary ventilation fan flow rates for existing houses using a single fan. Objective(s): To provide supplemental ventilation information--ASHRAE 62.2 GA Wx Field Guide Georgia Environmental Finance Authority 467 of 491 June 22, 2018 Baseload > Plug Load > Refrigerators/Freezers 7.8001.1 - Refrigerator and Freezer Replacement Desired Outcome: A more energy efficient appliance installed 7.8001.1a - Selection Desired Outcome: A more energy efficient appliance installed Specification(s): Appliance shall be ENERGY STAR qualified or at least as energy efficient Appliance will fit in the available space without blocking access to light switches, cabinets, etc. Appliance will carry a minimum one-year warranty that will provide a replacement appliance if repeated issues relating to health, safety, or performance occur Objective(s): Energy efficient appliance installed 7.8001.1b - Installation Desired Outcome: A more energy efficient appliance installed Specification(s): Appliance will be installed in accordance with manufacturer specifications and local codes Any penetrations to the exterior of the home created by the installation of the appliance will be sealed Energy-related appliance controls will be demonstrated to the occupant Specific information on the proper maintenance of the equipment will be provided to the occupant Warranty information, operation manuals, and installer contact information will be provided to the occupant Objective(s): GA Wx Field Guide Georgia Environmental Finance Authority 468 of 491 June 22, 2018 Baseload > Plug Load > Refrigerators/Freezers Achieve intended appliance function Preserve food at low energy use Educate occupant on how to operate and maintain the appliance 7.8001.1c - Decommissioning 7.8001.1c - Decommissioning Desired Outcome: A more energy efficient appliance installed Specification(s): Appliances replaced by new units will be recycled or disposed of in accordance with federal, state, or local regulations Appliances infested with pests will be enclosed before moving Objective(s): Prevent reuse of inefficient equipment and components Protect the environment Protect worker safety GA Wx Field Guide Georgia Environmental Finance Authority 469 of 491 June 22, 2018 Baseload > Plug Load > Refrigerators/Freezers 7.8001.2 - Cleaning and Tuning Existing Refrigerators and Freezers Desired Outcome: Energy used for food preservation reduced 7.8001.2a - Clean and tune Desired Outcome: Energy used for food preservation reduced Specification(s): Dirty or clogged coils will be cleaned Air flow to the coils will be provided in accordance with manufacturer specifications Appliance will be located away from heat sources (e.g., supply registers, direct sunlight) if possible Interior temperatures will be measured, and the appliance must maintain: Freezer temperature at 0 Fresh food at 35-40 Specific information about the proper maintenance of the equipment will be provided to the occupant Condensation control switch will be left in the appropriate position, given occupant preference and moisture load in the house Objective(s): Reduce energy use Improve performance Educate occupant on how to operate and maintain the appliance GA Wx Field Guide Georgia Environmental Finance Authority 470 of 491 June 22, 2018 Baseload > Water Heating > Water Use Reduction 7.8101.1 - Shower Head and Faucet Aerator Desired Outcome: Energy and water use reduced while occupant needs for water flow maintained Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 7.8101.1a - Work assessment Desired Outcome: Energy and water use reduced while occupant needs for water flow maintained Specification(s): Installer pre-work assessment will be conducted to determine if plumbing needs correction before installing high-efficiency shower head or faucet Objective(s): Verify scope of work 7.8101.1b - Selection Desired Outcome: Energy and water use reduced while occupant needs for water flow maintained Specification(s): The rated flow of new shower heads will be 2.5 gallons per minute (GPM) or less If multiple heads are provided, the total flow rate will not exceed 2.5 GPM Aerator flow rate will be 2.2 GPM or less Features will be selected that meet any special needs of the occupant (e.g., shut off, swivel, handheld showers) Objective(s): Reduce water and energy consumption Ensure occupant satisfaction GA Wx Field Guide Georgia Environmental Finance Authority 471 of 491 June 22, 2018 Baseload > Water Heating > Water Use Reduction 7.8101.1d - Decommissioning 7.8101.1c - Installation Desired Outcome: Energy and water use reduced while occupant needs for water flow maintained Specification(s): Equipment will be installed in accordance with manufacturer specifications and meet all applicable building codes Water quality will be evaluated for debris that may clog the equipment Once installed, high-efficiency shower heads or faucet aerators will be tested to determine if equipment is tightened adequately to prevent leakage at the point of connection If needed, shower diverter will be repaired or replaced Any penetrations to the exterior of the home created by the installation of the equipment will be sealed Any damage done to the house during installation will be repaired Specific information about proper maintenance of the equipment will be provided to the occupant Warranty information, operation manuals, and installer contact information will be provided to the occupant Water flow that satisfies the occupant will be provided by all shower heads and faucet aerators Occupant's acceptance of the shower head and/or aerator will be documented Objective(s): Reduce water and energy consumption Ensure occupant satisfaction with water flow Eliminate water leakage Prevent water damage 7.8101.1d - Decommissioning Desired Outcome: GA Wx Field Guide Georgia Environmental Finance Authority 472 of 491 June 22, 2018 Baseload > Water Heating > Water Use Reduction 7.8101.1d - Decommissioning Energy and water use reduced while occupant needs for water flow maintained Specification(s): Replaced shower heads and faucet aerators will be recycled or disposed of properly Objective(s): Prevent the reuse of inefficient equipment and components GA Wx Field Guide Georgia Environmental Finance Authority 473 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.1 - Water Heater Selection Desired Outcome: Safe, reliable, and efficient hot water source selected that meets occupant needs at lowest possible cost of ownership and operation 7.8102.1a - Selection parameters Desired Outcome: Safe, reliable, and efficient hot water source selected that meets occupant needs at lowest possible cost of ownership and operation Specification(s): Equipment will provide sufficient, affordable, safe, and healthy hot water for the occupant in accordance with IRC Potential for solar hot water heating or other renewable energy systems will be assessed in selecting the hot water equipment Potential for health and safety hazards (e.g., backdrafting, flame rollout, obstructions) will be assessed in selecting equipment and the cost of remedying such problems will be included in any cost and benefit calculations If a combustion based system is selected, it will be either direct vented or power vented, and ENERGY STAR qualified or an Energy Factor (EF) of 0.58 or higher If combustion equipment is selected, a low nitrogen oxide burner will be included Equipment will be functional at high efficiency under all load conditions Standby losses will be reduced to maximum potential Fuel type will be selected based on affordability to occupant Equipment will be freeze resistant or installed in a conditioned space Efficiency of equipment will be maintained throughout life of system Occupant control of hot water temperature will be provided on the equipment The following will be determined from the occupant: GA Wx Field Guide Georgia Environmental Finance Authority 474 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.1b - Product selection Lifestyle Current and future needs Space considerations Fuel options Health and safety considerations Appliance options Maintenance and operation costs Return on investment concerns Objective(s): Save energy and water Protect the environment Identify appliance options based on the needs and wants of the occupant 7.8102.1b - Product selection Desired Outcome: Safe, reliable, and efficient hot water source selected that meets occupant needs at lowest possible cost of ownership and operation Specification(s): Water heater will be selected based on performance requirements of the occupant, available fuel sources, energy efficiency, and total life cycle cost In very cold climates, on-demand water heaters will be sized to meet the demand of water flow at very low water intake temperatures When evaluating an existing thermal solar water heating system, a solar expert should be consulted The proper installation and maintenance of solar hot water systems is provided in the Uniform Solar Energy Code (USEC) and IRC Objective(s): Ensure equipment meets the occupant's expectations while providing efficient energy and water use GA Wx Field Guide Georgia Environmental Finance Authority 475 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.2 - Storage-Type Appliance Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 7.8102.2e - Expansion tank Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Expansion tanks will be installed where required and in accordance with the AHJ Objective(s): Protect the storage tank from expansion Bad Practice Need to eliminate the valves between the storage tank and expansion tank Safe Expansion tank is installed on the cold water supply side Appropriate licensing for installer required. This specification applies only in the case of new and/or replacement systems. GA Wx Field Guide Georgia Environmental Finance Authority 476 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.2f - Temperature and pressure relief valve 7.8102.2f - Temperature and pressure relief valve Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Correct temperature and pressure relief valve will be installed in compliance with IRC and according to manufacturer specifications Temperature and pressure relief valve discharge tube will be installed in accordance with IRC Objective(s): Discharge excessive energy (pressure or temperature) from storage tank to safe location Before Water heaters should be not capped off at t&p valve After T&P discharge should be piped to a safe and observable location Tools: 1. Pipe wrench 2. Hacksaw Materials: 1. PVC 2. Plumber's epoxy Check local jurisdictional codes. Paraphrased from 2012 IRC P2803.6.1: Temperature and pressure relief valve discharge pipes should not be connected to drainage system. T&P discharge pipes should be a clean line without valve or tee, flowing with gravity to an observable and safe location that cannot cause personal injury or structural damage -- the floor, an existing drain pan, a waste receptor, or to the outdoors. Pipe should not terminate more than 6" from floor, pan or waste receptor. GA Wx Field Guide Georgia Environmental Finance Authority 477 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.2k - Discharge temperature GOOD: T&P discharge should be piped within 6" of the floor or to outdoors BAD: T&P discharge should flow with BAD: T&P discharge should not be gravity and be observable piped into drainage system 7.8102.2k - Discharge temperature Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Discharge temperature will be set not to exceed 120 or as prescribed by local code Objective(s): Ensure safe hot water supply temperature to fixtures Unsafe Water heaters producing water over 120 degrees raise heating costs Tools: 1. Thermometer Safe Water heaters should produce water under 120 degrees to prevent scalding GA Wx Field Guide Georgia Environmental Finance Authority 478 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.2k - Discharge temperature 1 Test temperature of hot water at faucets in house 2 Hot water temperatures should not exceed 120 degrees Fahrenheit 3 Adjust water heater settings and insulate as needed 4 After adjustment and insulation, retest to verify temp is under 120 degrees GA Wx Field Guide Georgia Environmental Finance Authority 479 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3 - On-Demand Appliance Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 7.8102.3a - Hazardous material removal Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Health concerns in the removal and replacement of equipment (e.g., asbestos, other hazardous materials) will be identified Written notification will be provided to occupants of the discovery of hazardous material, including contact information for regional EPA asbestos coordinator Occupants will be asked to contract with an EPA-certified asbestos contractor to conduct abatement before equipment removal and replacement (occupant is responsible for abatement or remediation) Objective(s): Remediate health hazards using EPA-certified contractors 7.8102.3b - Equipment removal Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Accepted industry procedures and practices will be followed to: Remove old water heater and associated components in accordance with IRC Seal any unused chimney openings and penetrations in accordance with IRC GA Wx Field Guide Georgia Environmental Finance Authority 480 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3c - New equipment installation Remove unused oil tank, lines, valves, and associated equipment in accordance with IRC All work shall be completed by a licensed plumbing professional where required by the authority having jurisdiction and installed to industry-accepted standards Objective(s): Ensure the safety of the workers and occupants Preserve integrity of the building Remove old equipment in a timely and efficient manner 7.8102.3c - New equipment installation Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): A new water heater and associated components will be installed to accepted industry standards, in accordance with the IRC, authority having jurisdiction and manufacturer specifications Objective(s): Ensure the safety of the workers and occupants Preserve integrity of the building Remove old equipment in a timely and efficient manner 7.8102.3d - Emergency drain pan Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): An emergency drain pan and drain line shall be installed in accordance with the IRC Objective(s): Collect and safely dispose of water escaping from the storage tank GA Wx Field Guide Georgia Environmental Finance Authority 481 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3e - Temperature and pressure relief valve 7.8102.3e - Temperature and pressure relief valve Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Correct temperature and pressure relief valve will be installed in compliance with IRC and according to manufacturer specifications Temperature and pressure relief valve discharge tube will be installed in accordance with IRC Objective(s): Discharge excessive energy (pressure or temperature) from storage tank to safe location 7.8102.3f - Dielectric unions Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Dielectric unions will be installed to accepted industry standards, in accordance with the IRC and according to manufacturer specifications Objective(s): Break the stray voltage electrical circuit through the storage tank 7.8102.3g - Backflow prevention and pressure regulator Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Backflow prevention will be installed in accordance with manufacturer specifications House water pressure and volume will be verified as sufficient to be in accordance with GA Wx Field Guide Georgia Environmental Finance Authority 482 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement manufacturer specifications All applicable codes will be followed Objective(s): Protect the water supply from contamination Provide for sufficient volume and pressure 7.8102.3h - Thermal efficiency 7.8102.3h - Thermal efficiency Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Any accessible hot water lines at the appliance will be insulated to meet IRC or local requirements, whichever is greater. Objective(s): Reduce line losses 7.8102.3i - Required combustion air Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Electric or fossil fuel supply components will be installed to accepted industry standards as per IRC , NFGC and NFPA 31 and 54 for gas and oil, or NEC for electric Energy input required by the appliance will be in accordance with manufacturer specifications All on-demand appliances will be installed per manufacturer recommendations/specifications Objective(s): Ensure adequate combustion air for operation of the appliance GA Wx Field Guide Georgia Environmental Finance Authority 483 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3k - Flue gas testing 7.8102.3j - Venting of flue gases Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Combustion byproducts will be removed in accordance with IRC, authority having jurisdiction, and manufacturer specifications Objective(s): Ensure the safety and durability of the venting system 7.8102.3k - Flue gas testing Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Undiluted flue gases will be checked with a calibrated combustion analyzer in accordance with BPI-1100-T If combustion is not in compliance with BPI-1100-T, diagnostics and adjustments will be done to manufacturer specifications or local codes Objective(s): Confirm that combustion is occurring safely with maximum efficiency 7.8102.3l - Electric and fossil fuel supply Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Electric or fossil fuel supply components will be installed to accepted industry standards as per IRC, NFGC and NFPA 31 and 54 for gas and oil, or NEC for electric GA Wx Field Guide Georgia Environmental Finance Authority 484 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3m - Cold water supply Energy input required by the appliance will be in accordance with manufacturer specifications Objective(s): Provide sufficient fuel to the water heater burner or element 7.8102.3m - Cold water supply Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): The volume and pressure of the water supplied to the appliance will be in accordance with manufacturer specifications Objective(s): Provide sufficient volume and pressure of water to the appliance 7.8102.3n - Discharge temperature Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Discharge temperature will be set in accordance with manufacturer instructions and in compliance with local codes Use extreme caution when temperature setting is above 120F Objective(s): Ensure safe hot water supply temperature to fixtures 7.8102.3o - Commissioning of system Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership GA Wx Field Guide Georgia Environmental Finance Authority 485 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3p - Ambient carbon monoxide (CO) Specification(s): The following will be checked once the system has been connected and filled: Safety controls Combustion safety and efficiency Operational controls Fuel and water leaks Cycle unit Local code requirements Manufacturer specifications and all relevant industry standards will be met in commissioning Objective(s): Ensure system functions safely with lowest possible cost of ownership 7.8102.3p - Ambient carbon monoxide (CO) Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): All homes will have a CO alarm Objective(s): Ensure occupant health and safety 7.8102.3q - Occupant education Desired Outcome: Safe and reliable hot water source provided that meets occupant needs at lowest possible cost of ownership Specification(s): Completed work will be reviewed Occupants will be educated on the safe and efficient operation and maintenance of the system, including: GA Wx Field Guide Georgia Environmental Finance Authority 486 of 491 June 22, 2018 Baseload > Water Heating > Installation and Replacement 7.8102.3q - Occupant education Adjustment of water temperature and target temperature in accordance with local code Operation of backflow preventer and pressure regulator (no occupant maintenance required) Importance of keeping operating manuals accessible Objective(s): Ensure occupant is informed of the safe, efficient operation and maintenance of the system GA Wx Field Guide Georgia Environmental Finance Authority 487 of 491 June 22, 2018 Baseload > Water Heating > Maintenance/Inspection 7.8103.1 - Storage-Type Appliance Desired Outcome: Safe, reliable, and efficient operation of the appliance maintained Note: The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail. 7.8103.1a - Health and safety Desired Outcome: Safe, reliable, and efficient operation of the appliance maintained Specification(s): Combustion safety testing will be performed in accordance with the Health and Safety Chapter of the Standard Work Specifications for Single Family Housing or other equivalent practice Electrical components will be verified to comply with NEC (e.g., no electrical box connector, no disconnect, improperly sized breaker and wire) Objective(s): Identify potential health and safety issues Before Complete combustion safety testing to ensure healthy, safe work environment After When completed work, retest to verify home is still healthy and safe GA Wx Field Guide Georgia Environmental Finance Authority 488 of 491 June 22, 2018 Baseload > Water Heating > Maintenance/Inspection 7.8103.1c - Thermal efficiency Tools: 1. Personal CO monitor 2. Combustion analyzer with probe 3. Manometer 4. Smoke pencil Materials: 1. CO alarm 2. Fasteners See also SWS 2.0201.1a-2.0299.1i for all Combustion Safety details and SWS 2.0100.1d for General Electrical Safety. 7.8103.1c - Thermal efficiency Desired Outcome: Safe, reliable, and efficient operation of the appliance maintained Specification(s): Water heater storage tanks shall have a minimum R-value of R-24, unless the SIR to add insulation is less than 1.0 Added insulation will not obstruct the unit's draft diverter, pressure relief valve, thermostats, hi-limit switch, plumbing pipes or elements, and thermostat access plates The first 6' of inlet and outlet piping will be insulated in accordance with IRC or local requirements, whichever is greater Objective(s): Reduce standby losses from near tank piping and storage tank Ensure insulation does not make contact with flue gas venting Standard water heaters have built-in insulation ranging from R-7 to R-20. GA Wx Field Guide Georgia Environmental Finance Authority Best Practice Storage-type water heaters should be wrapped to bring total value to R-24 489 of 491 June 22, 2018 Baseload > Water Heating > Maintenance/Inspection 7.8103.1e - Temperature and pressure relief valve Tools: 1. Utility knife Materials: 1. Pipe wrap 2. Water heater blanket 3. Foil tape 4. Long zip ties Check occupant's water heater model to see what R-value is built-in Blanket does not obstruct draft diverter or plumbing pipes and elements Wrap does not obstruct ventilation, thermostat access plate, hi-limit switch, or fuel line Data plate should still be accessible after wrapping Both hot and cold water pipes should be insulated to R-3 for first 6ft 7.8103.1e - Temperature and pressure relief valve Desired Outcome: Safe, reliable, and efficient operation of the appliance maintained Specification(s): Correct temperature and pressure relief valve will be installed in compliance with IRC and according to manufacturer specifications Temperature and pressure relief valve discharge tube will be installed in accordance with IRC GA Wx Field Guide Georgia Environmental Finance Authority 490 of 491 June 22, 2018 Baseload > Water Heating > Maintenance/Inspection 7.8103.1e - Temperature and pressure relief valve Objective(s): Discharge excessive energy (pressure or temperature) from storage tank to safe location Before Water heaters should be not capped off at t&p valve After T&P discharge should be piped to a safe and observable location Tools: 1. Pipe wrench 2. Hacksaw Materials: 1. PVC 2. Plumber's epoxy Check local jurisdictional codes. Paraphrased from 2012 IRC P2803.6.1: Temperature and pressure relief valve discharge pipes should not be connected to drainage system. T&P discharge pipes should be a clean line without valve or tee, flowing with gravity to an observable and safe location that cannot cause personal injury or structural damage -- the floor, an existing drain pan, a waste receptor, or to the outdoors. Pipe should not terminate more than 6" from floor, pan or waste receptor. GOOD: T&P discharge should be piped within 6" of the floor or to outdoors BAD: T&P discharge should flow with BAD: T&P discharge should not be gravity and be observable piped into drainage system GA Wx Field Guide Georgia Environmental Finance Authority 491 of 491 June 22, 2018