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CAD File:

Air barrier at garage band joist - 1 inch rigid insulation with 2x2 wood furring

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Air barrier at garage band joist - 1 inch rigid insulation with 2x2 wood furring
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Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities

Air handler platforms used as return air plenums can draw air from vented attics and crawlspaces through other connected framing cavities
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Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions

Air seal a heat pump or air conditioner air handler cabinet at all seams, holes, and junctions
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Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty

Air seal all holes and seams in the furnace cabinet with mastic, foil tape, or putty
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Air seal and insulate flex ducts

Air seal and insulate flex ducts
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Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.

Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.
CAD File:

Air seal at chase walls - plan

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Air seal at chase walls - plan
CAD File:

Air seal at duct boot

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Air seal at duct boot
CAD File:

Air seal at duct soffit

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Air seal at duct soffit
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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
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All of the ductwork for the efficient (8.5 HSPF, 15 SEER) heat pump is mastic sealed and installed in conditioned space.

All of the ductwork for the efficient (8.5 HSPF, 15 SEER) heat pump is mastic sealed and installed in conditioned space.
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All other supply ducts and all return ducts in unconditioned space have insulation ≥ R-6

All other supply ducts and all return ducts in unconditioned space have insulation ≥ R-6
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An energy recovery ventilator provides filtered fresh air to every room in the house.

An energy recovery ventilator provides filtered fresh air to every room in the house.
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An in-line airflow station installed in rigid duct provides a location to measure ventilation airflow

An in-line airflow station installed in rigid duct provides a location to measure ventilation airflow
Presentation:

Approaches for Effective Isolation Space Control to Minimize Airborne Transmission of Contaminants in Residential Homes

Approaches for Effective Isolation Space Control to Minimize Airborne Transmission of Contaminants in Residential Homes
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Assembled section of fiber board duct

Assembled section of fiber board duct
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Back-draft damper still has a piece of tape that prevented it from rattling during shipping

Back-draft damper still has a piece of tape that prevented it from rattling during shipping
Video:

Backdraft Dampers

Case Study:

Baxter Community - High Performance Green Building

Baxter Community - High Performance Green Building
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Because this ICF and spray foamed house is so well insulated, the HVAC system is smaller, the round metal ducts are smaller diameter, and the duct layout is more compact.

Because this ICF and spray foamed house is so well insulated, the HVAC system is smaller, the round metal ducts are smaller diameter, and the duct layout is more compact.
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa

Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa

Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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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