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Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole

Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole
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Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole

Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole
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Floorplan of a heat pump water heater located in a closet in an exterior corridor or breezeway rather than within the thermal envelope of a multifamily dwelling unit

Floorplan of a heat pump water heater located in a closet in an exterior corridor or breezeway rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in a closet in an interior corridor rather than within the thermal envelope of a multifamily dwelling unit

Floorplan of a heat pump water heater located in a closet in an interior corridor rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in an interior closet with active (ducted) ventilation

Floorplan of a heat pump water heater located in an interior closet with active (ducted) ventilation
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Floorplan of a heat pump water heater located in an interior closet with passive ventilation

Floorplan of a heat pump water heater located in an interior closet with passive ventilation
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Floorplan of a hypothetical multifamily building showing corridors and stairwells

Floorplan of a hypothetical multifamily building showing corridors and stairwells
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Floorplan of a hypothetical multifamily building with hot water First Hour Rating (FHR) requirements (in gallons) noted for each dwelling unit

Floorplan of a hypothetical multifamily building with hot water First Hour Rating (FHR) requirements (in gallons) noted for each dwelling unit
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Floorplan of heat pump water heater located in an exterior closet with transfer grilles in the exterior wall or a louvered door to allow ventilation

Floorplan of heat pump water heater located in an exterior closet with transfer grilles in the exterior wall or a louvered door to allow ventilation
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Floorplan showing a basement location for a heat pump water heater

Floorplan showing a basement location for a heat pump water heater
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Floorplan showing a garage location for a heat pump water heater

Floorplan showing a garage location for a heat pump water heater
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Floorplan showing a laundry room location for a heat pump water heater

Floorplan showing a laundry room location for a heat pump water heater
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Foil-faced rigid foam and spray foam can be used to insulate a basement on the interior; use good moisture management techniques to keep the basement dry

Foil-faced rigid foam and spray foam can be used to insulate a basement on the interior; use good moisture management techniques to keep the basement dry
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For slabs on grade in CZ 4 and higher, 100% of slab edge insulated to ≥ R-5 at the depth specified by the 2009 IECC and aligned with thermal boundary of the walls

For slabs on grade in CZ 4 and higher, 100% of slab edge insulated to ≥ R-5 at the depth specified by the 2009 IECC and aligned with thermal boundary of the walls
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Form a sheet metal shield around the flue pipe

Form a sheet metal shield around the flue pipe
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Form sheet metal shield around pipe keeping 3-inch clearance

Form sheet metal shield around pipe keeping 3-inch clearance
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Form sheet metal shield around pipe keeping 3-inch clearance

Form sheet metal shield around pipe keeping 3-inch clearance
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Foundation heat exchanger installed in overcut around a basement wall

Foundation heat exchanger installed in overcut around a basement wall
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Frame preparation for inserting a replacement window

Frame preparation for inserting a replacement window
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Frame preparation for replacement window sashes

Frame preparation for replacement window sashes
Video:

Fully Sealed Continuous Weather Resistance Barrier (1)

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Gaps at shared common walls can be a significant source of air leakage in multi-family buildings

Gaps at shared common walls can be a significant source of air leakage in multi-family buildings
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Gasket installed along entire seam of the modular home marriage joint

Gasket installed along entire seam of the modular home marriage joint
Case Study:

GreenCraft Builders 2009 TimberCreek Net Zero Energy House Prototype