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A technician assembles the spray sealant injection system to seal HVAC ducts from the inside
A technician assembles the spray sealant injection system to seal HVAC ducts from the inside
A technician assembles the spray sealant injection system to seal HVAC ducts from the inside
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A technician conducts a duct blaster test
A technician conducts a duct blaster test
A technician conducts a duct blaster test
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Air seal duct boot to ceiling by installing fiberglass mesh tape and mastic over seam
Air seal duct boot to ceiling by installing fiberglass mesh tape and mastic over seam
Air seal duct boot to ceiling by installing fiberglass mesh tape and mastic over seam
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Assembled section of fiber board duct
Assembled section of fiber board duct
Assembled section of fiber board duct
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Block off registers before installing spray sealant in HVAC ducts
Block off registers before installing spray sealant in HVAC ducts
Block off registers before installing spray sealant in HVAC ducts
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Boot has been covered with insulation and sealed with mastic
Boot has been covered with insulation and sealed with mastic
Boot has been covered with insulation and sealed with mastic
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Boot to drywall connection not sealed
Boot to drywall connection not sealed
Boot to drywall connection not sealed
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Boot to drywall connection sealed
Boot to drywall connection sealed
Boot to drywall connection sealed
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Boot to floor connection not sealed
Boot to floor connection not sealed
Boot to floor connection not sealed
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Boot to floor connection sealed
Boot to floor connection sealed
Boot to floor connection sealed
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Connect the plastic application tunnel from the injection equipment to the supply plenum.
Connect the plastic application tunnel from the injection equipment to the supply plenum.
Connect the plastic application tunnel from the injection equipment to the supply plenum.
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Connect the plastic application tunnel to the injection equipment
Connect the plastic application tunnel to the injection equipment
Connect the plastic application tunnel to the injection equipment
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Connection in place but not sealed
Connection in place but not sealed
Connection in place but not sealed
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Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
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Duct boot is air sealed to ceiling by covering the seam with fiberglass mesh tape and mastic
Duct boot is air sealed to ceiling by covering the seam with fiberglass mesh tape and mastic
Duct boot is air sealed to ceiling by covering the seam with fiberglass mesh tape and mastic
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Duct boots sealed to floor, wall, or ceiling using caulk, foam, mastic tape, or mastic paste
Duct boots sealed to floor, wall, or ceiling using caulk, foam, mastic tape, or mastic paste
Duct boots sealed to floor, wall, or ceiling using caulk, foam, mastic tape, or mastic paste
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Exhaust duct is well supported by framing and support straps
Exhaust duct is well supported by framing and support straps
Exhaust duct is well supported by framing and support straps
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Exhaust terminates inside of soffit and was just covered
Exhaust terminates inside of soffit and was just covered
Exhaust terminates inside of soffit and was just covered
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Exhaust terminates to the outside away from air inlets
Exhaust terminates to the outside away from air inlets
Exhaust terminates to the outside away from air inlets
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Fiber board sheets are available with pre-cut shiplapped ends
Fiber board sheets are available with pre-cut shiplapped ends
Fiber board sheets are available with pre-cut shiplapped ends
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Fiberglass duct board typically comes in sheets 4 foot wide by 10 foot long
Fiberglass duct board typically comes in sheets 4 foot wide by 10 foot long
Fiberglass duct board typically comes in sheets 4 foot wide by 10 foot long
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Fiberglass mesh tape is installed around a duct boot in preparation for air sealing with mastic
Fiberglass mesh tape is installed around a duct boot in preparation for air sealing with mastic
Fiberglass mesh tape is installed around a duct boot in preparation for air sealing with mastic
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Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools
Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools
Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools
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Insulation does not cover boot and is not sealed
Insulation does not cover boot and is not sealed
Insulation does not cover boot and is not sealed
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Insulation does not cover boot and is not sealed
Insulation does not cover boot and is not sealed
Insulation does not cover boot and is not sealed
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Kitchen exhaust properly installed and sealed with mastic
Kitchen exhaust properly installed and sealed with mastic
Kitchen exhaust properly installed and sealed with mastic
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Manually seal around ceiling registers with foil tape
Manually seal around ceiling registers with foil tape
Manually seal around ceiling registers with foil tape
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Manually seal around ceiling registers with mastic
Manually seal around ceiling registers with mastic
Manually seal around ceiling registers with mastic
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Manually seal around the return plenum
Manually seal around the return plenum
Manually seal around the return plenum
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Manually seal around the supply plenum
Manually seal around the supply plenum
Manually seal around the supply plenum
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Manually seal seams in the air handler box with foil tape
Manually seal seams in the air handler box with foil tape
Manually seal seams in the air handler box with foil tape
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Manually seal seams in the return plenum
Manually seal seams in the return plenum
Manually seal seams in the return plenum
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Mechanically fastened and sealed
Mechanically fastened and sealed
Mechanically fastened and sealed
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Non-hardening removable putty can be used to seal around wiring holes in the HVAC cabinet
Non-hardening removable putty can be used to seal around wiring holes in the HVAC cabinet
Non-hardening removable putty can be used to seal around wiring holes in the HVAC cabinet
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Rater-measured duct leakage to outdoors ≤ 4 CFM25 per 100 sq. ft. of conditioned floor area
Rater-measured duct leakage to outdoors ≤ 4 CFM25 per 100 sq. ft. of conditioned floor area
Rater-measured duct leakage to outdoors ≤ 4 CFM25 per 100 sq. ft. of conditioned floor area
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Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
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Right - Duct runs are straight with gradual bends; joints are well sealed.
Right - Duct runs are straight with gradual bends; joints are well sealed.
Right - Duct runs are straight with gradual bends; joints are well sealed.
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Right - Ducts and heat pump cabinet are properly sealed with mastic, high MERV filter is installed, and duct and refrigerant lines are air sealed at ceiling.
Right - Ducts and heat pump cabinet are properly sealed with mastic, high MERV filter is installed, and duct and refrigerant lines are air sealed at ceiling.
Right - Ducts and heat pump cabinet are properly sealed with mastic, high MERV filter is installed, and duct and refrigerant lines are air sealed at ceiling.
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Right - Insulating sleeve for small through-the-wall HRV unit with sealing gasket; 3 of 14.
Right - Insulating sleeve for small through-the-wall HRV unit with sealing gasket; 3 of 14.
Right - Insulating sleeve for small through-the-wall HRV unit with sealing gasket; 3 of 14.
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Right - Seams in duct boot are sealed with mastic.
Right - Seams in duct boot are sealed with mastic.
Right - Seams in duct boot are sealed with mastic.
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RIght - Seams in duct boot elbow are fully sealed with mastic.
RIght - Seams in duct boot elbow are fully sealed with mastic.
RIght - Seams in duct boot elbow are fully sealed with mastic.
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Right - The open web floor joists have ample space for HVAC ducts
Right - The open web floor joists have ample space for HVAC ducts
Right - The open web floor joists have ample space for HVAC ducts
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Right - The vent hood is flashed
Right - The vent hood is flashed
Right - The vent hood is flashed
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Right – All of the cabinet seams in this HVAC air furnace are sealed with an approved metal tape.
Right – All of the cabinet seams in this HVAC air furnace are sealed with an approved metal tape.
Right – All of the cabinet seams in this HVAC air furnace are sealed with an approved metal tape.
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Right: A well-constructed air handler closet
Right: A well-constructed air handler closet
Right: A well-constructed air handler closet
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Right: Air seal all seams in the return air plenum before installing a new air handler
Right: Air seal all seams in the return air plenum before installing a new air handler
Right: Air seal all seams in the return air plenum before installing a new air handler
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Right: Refrigerant piping is sealed where it exits the return plenum
Right: Refrigerant piping is sealed where it exits the return plenum
Right: Refrigerant piping is sealed where it exits the return plenum
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Right: The bottom of the air handler cabinet is well sealed to the return platform
Right: The bottom of the air handler cabinet is well sealed to the return platform
Right: The bottom of the air handler cabinet is well sealed to the return platform
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Right: The plenum liner is well sealed to the filter-backed grille
Right: The plenum liner is well sealed to the filter-backed grille
Right: The plenum liner is well sealed to the filter-backed grille
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Right: Use mastic to air seal the return air plenum and to seal around refrigerant lines coming from the slab in the floor of the return
Right: Use mastic to air seal the return air plenum and to seal around refrigerant lines coming from the slab in the floor of the return
Right: Use mastic to air seal the return air plenum and to seal around refrigerant lines coming from the slab in the floor of the return
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