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United Way of Long Island built this affordable home in the mixed-humid climate in Deer Park, NY, and certified it to DOE Zero Energy Ready Home specifications in 2015.

United Way of Long Island built this affordable home in the mixed-humid climate in Deer Park, NY, and certified it to DOE Zero Energy Ready Home specifications in 2015.
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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.
Video:

Unvented Attic Insulation (1)

Video:

Unvented Attic Insulation (2)

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Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and a fully adhered membrane seal at the top of wall-to-roof transition

Unvented roof assembly at eave retrofitted with rigid foam, spray foam, and a fully adhered membrane seal at the top of wall-to-roof transition
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Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition

Unvented roof assembly at rake retrofitted with a filler piece and taped top edge of existing house wrap or building paper to seal the top of wall-to-roof transition
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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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Vented Attic vs Unvented Cathedral Attic Air Flow

Vented Attic vs Unvented Cathedral Attic Air Flow
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Vented roof assembly at eave retrofitted with rigid foam, spray foam, and fully adhered membrane to air seal the top of wall-to-roof transition

Vented roof assembly at eave retrofitted with rigid foam, spray foam, and fully adhered membrane to air seal the top of wall-to-roof transition
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Vented roof assembly at rake retrofitted with spray foam and additional insulation installed at the attic floor and extended to the rake edge

Vented roof assembly at rake retrofitted with spray foam and additional insulation installed at the attic floor and extended to the rake edge
Video:

Wall Assembly | Madrona Passive House

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Weatherstripping has been installed along the edge of this attic access panel to air seal the opening.

Weatherstripping has been installed along the edge of this attic access panel to air seal the opening.
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Weatherstripping has been installed along the framing of this attic access panel to air seal the opening.

Weatherstripping has been installed along the framing of this attic access panel to air seal the opening.
Video:

What Type of Connection is Critical in Creating a Continuous Path Differing Loads?

Presentation:

Why Are Attics Insulated With Open-Cell Spray Foam So Damp?

Why Are Attics Insulated With Open-Cell Spray Foam So Damp?
Video:

Wind Resistant Roof Systems

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Wrap the air-sealed chimney with mineral wool insulation to prevent contact with the warm brick when attic insulation is re-installed around the chimney

Wrap the air-sealed chimney with mineral wool insulation to prevent contact with the warm brick when attic insulation is re-installed around the chimney
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Wrong - Attic kneewall missing air barrier

Wrong - Attic kneewall missing air barrier
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Wrong - Batt insulation does not provide complete coverage across the attic floor so ceiling joists are exposed resulting in thermal bridging.

Wrong - Batt insulation does not provide complete coverage across the attic floor so ceiling joists are exposed resulting in thermal bridging.
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Wrong - Ceiling air barrier not properly installed

Wrong - Ceiling air barrier not properly installed