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United Way of Long Island built this affordable home in the mixed-humid climate in East Patchogue, NY, and certified it to DOE Zero Energy Ready Home specifications in 2019.

United Way of Long Island built this affordable home in the mixed-humid climate in East Patchogue, NY, and certified it to DOE Zero Energy Ready Home specifications in 2019.
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United Way of Long Island built this affordable home in the mixed-humid climate in Huntington Station, NY, and certified it to DOE Zero Energy Ready Home specifications in 2017.

United Way of Long Island built this affordable home in the mixed-humid climate in Huntington Station, NY, and certified it to DOE Zero Energy Ready Home specifications in 2017.
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United Way of Long Island built this affordable home in the mixed-humid climate in Medford, NY, and certified it to DOE Zero Energy Ready Home specifications in 2021.

United Way of Long Island built this affordable home in the mixed-humid climate in Medford, NY, and certified it to DOE Zero Energy Ready Home specifications in 2021.
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United Way of Long Island built this affordable home in the mixed-humid climate in Port Jefferson Station, NY, and certified it to DOE Zero Energy Ready Home specifications in 2020.

United Way of Long Island built this affordable home in the mixed-humid climate in Port Jefferson Station, NY, and certified it to DOE Zero Energy Ready Home specifications in 2020.
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Unity Homes built this custom spec home in the cold climate in Walpole, NH, and certified it to DOE Zero Energy Ready Home specifications in 2017.

Unity Homes built this custom spec home in the cold climate in Walpole, NH, and certified it to DOE Zero Energy Ready Home specifications in 2017.
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University of Minnesota-NorthernSTAR: A Natural Gas-Fired Combi System for Space Heating and Hot Water

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Unsealed, uninsulated rim joists allow outside air and heat into the floor cavity

Unsealed, uninsulated rim joists allow outside air and heat into the floor cavity
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Use masking tape as a removable sealer to stop air from leaking around the return grille filter.

Use masking tape as a removable sealer to stop air from leaking around the return grille filter.
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Use only Underwriters Laboratory UL-181 approved tape

Use only Underwriters Laboratory UL-181 approved tape
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Using dry wall clips or a 1x nailer strip to avoid the third stud in corners provides more room for insulation and reduces lumber.

Using dry wall clips or a 1x nailer strip to avoid the third stud in corners provides more room for insulation and reduces lumber.
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Ventilation air inlet is too close to exhaust outlet

Ventilation air inlet is too close to exhaust outlet
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Ventilation air inlet is too close to exhaust outlet

Ventilation air inlet is too close to exhaust outlet
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Ventilation air inlets ≥ 2 ft. above grade or roof deck in Climate Zones 1-3 or ≥ 4 ft. above grade or roof deck in Climate Zones 4-8 and not obstructed

Ventilation air inlets ≥ 2 ft. above grade or roof deck in Climate Zones 1-3 or ≥ 4 ft. above grade or roof deck in Climate Zones 4-8 and not obstructed
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Ventilation air inlets located ≥10 ft. of stretched-string distance from known contamination sources such as stack, vent, exhaust hood, or vehicle exhaust

Ventilation air inlets located ≥10 ft. of stretched-string distance from known contamination sources such as stack, vent, exhaust hood, or vehicle exhaust
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Ventilation inlet does not terminate high enough above the roof deck

Ventilation inlet does not terminate high enough above the roof deck
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Ventilation inlet is appropriately located above grade

Ventilation inlet is appropriately located above grade
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Ventilation inlet is greater than 10 ft. from known contamination source

Ventilation inlet is greater than 10 ft. from known contamination source
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Ventilation inlet is greater than 10 ft. from known contamination source

Ventilation inlet is greater than 10 ft. from known contamination source
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Ventilation inlet is not near any exhaust outlets/contamination sources and is at least 2 ft. above the roof deck

Ventilation inlet is not near any exhaust outlets/contamination sources and is at least 2 ft. above the roof deck
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Ventilation inlet is too close to exhaust outlets and does not extend at least 2 ft. above the roof deck

Ventilation inlet is too close to exhaust outlets and does not extend at least 2 ft. above the roof deck
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Ventilation inlet is too close to the ground and is being blocked by the grass

Ventilation inlet is too close to the ground and is being blocked by the grass
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Wall Assembly | Madrona Passive House

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Well sealed duct lifted into raised ceiling chase

Well sealed duct lifted into raised ceiling chase
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When wrapping metal ducts with insulation allow two inches of overlap and staple along the seam with outward clinching staples

When wrapping metal ducts with insulation allow two inches of overlap and staple along the seam with outward clinching staples