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An energy recovery ventilator with a MERV 13 filter supplies clean, fresh air to the entire home.
An energy recovery ventilator with a MERV 13 filter supplies clean, fresh air to the entire home.
An energy recovery ventilator with a MERV 13 filter supplies clean, fresh air to the entire home.
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An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.
An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.
An engineered bioswale uses perforated pipe laid in rock and landscape fabric at the bottom of a vegetated trench to direct water away from a site.
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An erosion control blanket protects the slope from erosion and provides favorable conditions for bank revegetation
An erosion control blanket protects the slope from erosion and provides favorable conditions for bank revegetation
An erosion control blanket protects the slope from erosion and provides favorable conditions for bank revegetation
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An ERV provides fresh air to the home while removing stale air and recovering heat.
An ERV provides fresh air to the home while removing stale air and recovering heat.
An ERV provides fresh air to the home while removing stale air and recovering heat.
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An example of a vertical California Seismic Valve
An example of a vertical California Seismic Valve
An example of a vertical California Seismic Valve
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An exhaust fan pulls damp air out of a retrofitted sealed crawlspace while drawing in dry air from the living space
An exhaust fan pulls damp air out of a retrofitted sealed crawlspace while drawing in dry air from the living space
An exhaust fan pulls damp air out of a retrofitted sealed crawlspace while drawing in dry air from the living space
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An extensive battery storage system saves solar-generated power in this 4-unit multifamily building for use during evening peak hours.
An extensive battery storage system saves solar-generated power in this 4-unit multifamily building for use during evening peak hours.
An extensive battery storage system saves solar-generated power in this 4-unit multifamily building for use during evening peak hours.
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An HRV or ERV provides balanced ventilation
An HRV or ERV provides balanced ventilation
An HRV or ERV provides balanced ventilation
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An in-line exhaust fan supplements the ability to exhaust moisture-laden air and lint from a dryer
An in-line exhaust fan supplements the ability to exhaust moisture-laden air and lint from a dryer
An in-line exhaust fan supplements the ability to exhaust moisture-laden air and lint from a dryer
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An independent ducted dehumidifier draws air from and supplies air to the living space using its own ducts, not ducts that are connected to the HVAC system
An independent ducted dehumidifier draws air from and supplies air to the living space using its own ducts, not ducts that are connected to the HVAC system
An independent ducted dehumidifier draws air from and supplies air to the living space using its own ducts, not ducts that are connected to the HVAC system
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An indoor water heater should be secured to the wall’s studs to prevent it from moving or tipping over in the event of an earthquake
An indoor water heater should be secured to the wall’s studs to prevent it from moving or tipping over in the event of an earthquake
An indoor water heater should be secured to the wall’s studs to prevent it from moving or tipping over in the event of an earthquake
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An insulated spline is another option for avoiding thermal bridging at SIP panel seams
An insulated spline is another option for avoiding thermal bridging at SIP panel seams
An insulated spline is another option for avoiding thermal bridging at SIP panel seams
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An interior bathroom left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
An interior bathroom left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
An interior bathroom left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
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An interior closet left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
An interior closet left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
An interior closet left partially intact after an EF4 tornado in Tuscaloosa, AL, 2011
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An IR camera image shows gaps around HVAC flue pipes allow conditioned air to leak through blown fiberglass into the attic
An IR camera image shows gaps around HVAC flue pipes allow conditioned air to leak through blown fiberglass into the attic
An IR camera image shows gaps around HVAC flue pipes allow conditioned air to leak through blown fiberglass into the attic
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An oil-fired boiler with direct combustion air and exhaust venting
An oil-fired boiler with direct combustion air and exhaust venting
An oil-fired boiler with direct combustion air and exhaust venting
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An on-demand hot water pump speeds water delivery to the low-flow plumbing fixtures for significant water and energy savings.
An on-demand hot water pump speeds water delivery to the low-flow plumbing fixtures for significant water and energy savings.
An on-demand hot water pump speeds water delivery to the low-flow plumbing fixtures for significant water and energy savings.
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An outdoor shower off the master bathroom keeps heat and humidity outside for this hot-humid climate home.
An outdoor shower off the master bathroom keeps heat and humidity outside for this hot-humid climate home.
An outdoor shower off the master bathroom keeps heat and humidity outside for this hot-humid climate home.
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An outside air duct brings in fresh air that is filtered and distributed to the home through the heat pump’s air handler and ducts. The system is electronically controlled in conjunction with the home’s exhaust fans for balanced ventilation.
An outside air duct brings in fresh air that is filtered and distributed to the home through the heat pump’s air handler and ducts. The system is electronically controlled in conjunction with the home’s exhaust fans for balanced ventilation.
An outside air duct brings in fresh air that is filtered and distributed to the home through the heat pump’s air handler and ducts. The system is electronically controlled in conjunction with the home’s exhaust fans for balanced ventilation.
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An ultra-efficient layer of R-20 rigid foam foundation insulation covers the ground underneath the vapor barrier and radiant floor loops, which will circulate water heated by an ultra-efficient geo heat pump.
An ultra-efficient layer of R-20 rigid foam foundation insulation covers the ground underneath the vapor barrier and radiant floor loops, which will circulate water heated by an ultra-efficient geo heat pump.
An ultra-efficient layer of R-20 rigid foam foundation insulation covers the ground underneath the vapor barrier and radiant floor loops, which will circulate water heated by an ultra-efficient geo heat pump.
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An underground fuel tank is anchored onto poured-in-place concrete counterweights.
An underground fuel tank is anchored onto poured-in-place concrete counterweights.
An underground fuel tank is anchored onto poured-in-place concrete counterweights.
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An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint
An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint
An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint
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An unvented cathedralized attic has the air, thermal, and vapor control layers at the roof line
An unvented cathedralized attic has the air, thermal, and vapor control layers at the roof line
An unvented cathedralized attic has the air, thermal, and vapor control layers at the roof line
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Anchor system installation
Anchor system installation
Anchor system installation
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Anchorage failure in sliding glass doors due to negative pressures from hurricane force winds.
Anchorage failure in sliding glass doors due to negative pressures from hurricane force winds.
Anchorage failure in sliding glass doors due to negative pressures from hurricane force winds.
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Anchoring hardware is used to tie down equipment and components of the home to resist high winds and hurricanes.
Anchoring hardware is used to tie down equipment and components of the home to resist high winds and hurricanes.
Anchoring hardware is used to tie down equipment and components of the home to resist high winds and hurricanes.
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Angle support framing is added to brace a long gable overhang constructed using the ladder framing method.
Angle support framing is added to brace a long gable overhang constructed using the ladder framing method.
Angle support framing is added to brace a long gable overhang constructed using the ladder framing method.
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Annual mean precipitation across the U.S.
Annual mean precipitation across the U.S.
Annual mean precipitation across the U.S.
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Anode bars can protect boiler steel without the bad effects of chemical water treatment
Anode bars can protect boiler steel without the bad effects of chemical water treatment
Anode bars can protect boiler steel without the bad effects of chemical water treatment
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Any holes through the vapor barrier installed over the basement floor slab are thoroughly sealed as part of the foundation water barrier system.
Any holes through the vapor barrier installed over the basement floor slab are thoroughly sealed as part of the foundation water barrier system.
Any holes through the vapor barrier installed over the basement floor slab are thoroughly sealed as part of the foundation water barrier system.
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Application of intumescent coating/ protection layer
Application of intumescent coating/ protection layer
Application of intumescent coating/ protection layer
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Application of window and door nonexpanding foam sealant
Application of window and door nonexpanding foam sealant
Application of window and door nonexpanding foam sealant
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Apply caulk to wall framing
Apply caulk to wall framing
Apply caulk to wall framing
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Apply roof underlayment over roof deck and up the sidewall over housewrap
Apply roof underlayment over roof deck and up the sidewall over housewrap
Apply roof underlayment over roof deck and up the sidewall over housewrap
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Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
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AquaZephyr, LLC, built this multifamily home in the cold climate in Ithaca, NY, and certified it to DOE Zero Energy Ready Home in 2016.
AquaZephyr, LLC, built this multifamily home in the cold climate in Ithaca, NY, and certified it to DOE Zero Energy Ready Home in 2016.
AquaZephyr, LLC, built this multifamily home in the cold climate in Ithaca, NY, and certified it to DOE Zero Energy Ready Home in 2016.
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Architectural diagram showing mounting surface for PV components
Architectural diagram showing mounting surface for PV components
Architectural diagram showing mounting surface for PV components
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Asphalt shingle installation at roof ridges, hips, eaves, and rakes
Asphalt shingle installation at roof ridges, hips, eaves, and rakes
Asphalt shingle installation at roof ridges, hips, eaves, and rakes
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Asphalt shingles are installed over a synthetic underlayment
Asphalt shingles are installed over a synthetic underlayment
Asphalt shingles are installed over a synthetic underlayment
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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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At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper
At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper
At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper
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Attach a strong permanent cover to gable end vents before a severe storm strikes to prevent moisture intrusion.
Attach a strong permanent cover to gable end vents before a severe storm strikes to prevent moisture intrusion.
Attach a strong permanent cover to gable end vents before a severe storm strikes to prevent moisture intrusion.
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Attach the interior 2x4 wall to the exterior wall top plate with a flat metal connector plate
Attach the interior 2x4 wall to the exterior wall top plate with a flat metal connector plate
Attach the interior 2x4 wall to the exterior wall top plate with a flat metal connector plate
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Attic knee walls are insulated with rigid foam and sealed with spray foam to help form a continuous draft barrier around attic rooms.
Attic knee walls are insulated with rigid foam and sealed with spray foam to help form a continuous draft barrier around attic rooms.
Attic knee walls are insulated with rigid foam and sealed with spray foam to help form a continuous draft barrier around attic rooms.
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Attic radiant barriers
Attic radiant barriers
Attic radiant barriers
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Autoclaved aerated concrete consists of sand, cement, and water, plus aluminum powder that reacts with the cement to form tiny bubbles that double the volume of the concrete, which then hardens to a lightweight, insulating product.
Autoclaved aerated concrete consists of sand, cement, and water, plus aluminum powder that reacts with the cement to form tiny bubbles that double the volume of the concrete, which then hardens to a lightweight, insulating product.
Autoclaved aerated concrete consists of sand, cement, and water, plus aluminum powder that reacts with the cement to form tiny bubbles that double the volume of the concrete, which then hardens to a lightweight, insulating product.
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Average Daily Solar Radiation Map.
Average Daily Solar Radiation Map.
Average Daily Solar Radiation Map.
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Average number of tornadoes per year across the United States
Average number of tornadoes per year across the United States
Average number of tornadoes per year across the United States
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Average wet-bulb temperatures across the United States
Average wet-bulb temperatures across the United States
Average wet-bulb temperatures across the United States
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Awnings, overhangs, and porches shield windows and doors from sun, rain, and snow in this sunny mountain locale.
Awnings, overhangs, and porches shield windows and doors from sun, rain, and snow in this sunny mountain locale.
Awnings, overhangs, and porches shield windows and doors from sun, rain, and snow in this sunny mountain locale.
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