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Flexible ducts supported at intervals as recommended by mfr. but at a distance ≤ 5 ft

Flexible ducts supported at intervals as recommended by mfr. but at a distance ≤ 5 ft
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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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Floor joist cavities can make acceptable duct chases

Floor joist cavities can make acceptable duct chases
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Floor joist cavities can make acceptable duct chases

Floor joist cavities can make acceptable duct chases
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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 homes with heating registers in the ceiling or floor, air seal where the duct boots meet the ceiling drywall or the flooring to prevent heat loss around the register.

For homes with heating registers in the ceiling or floor, air seal where the duct boots meet the ceiling drywall or the flooring to prevent heat loss around the register.
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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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For time efficiency during a pressure distribution check, multiple manometers can be monitored and data logged when establishing baseline conditions for a duct leakage test

For time efficiency during a pressure distribution check, multiple manometers can be monitored and data logged when establishing baseline conditions for a duct leakage test
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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 an insulation dam of heat-resistant insulation with at least 3 inches of clearance around a flue pipe in the attic after air sealing around the pipe with sheet metal and fire-rated caulk or canned foam

Form an insulation dam of heat-resistant insulation with at least 3 inches of clearance around a flue pipe in the attic after air sealing around the pipe with sheet metal and fire-rated caulk or canned foam
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Form an insulation dam of sheet metal around a flue pipe in the attic after air sealing around the pipe with sheet metal and fire-rated caulk or canned foam

Form an insulation dam of sheet metal around a flue pipe in the attic after air sealing around the pipe with sheet metal and fire-rated caulk or canned foam
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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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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
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Framing allowed duct work to be properly installed without compression

Framing allowed duct work to be properly installed without compression
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Fresh air intakes and exhaust vents are ducted to each unit in this multifamily building

Fresh air intakes and exhaust vents are ducted to each unit in this multifamily building
Video:

Fully Sealed Continuous Weather Resistance Barrier (1)

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Furnace and chimney flues often have large gaps around them that allow air leakage from the home into the attic.

Furnace and chimney flues often have large gaps around them that allow air leakage from the home into the attic.
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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

Case Study:

GreenCraft Greenspoint House Prototype