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Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.

Typically, you will remove the glass panels from the frame before installation; check the manufacturer’s instructions.
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U.S. Wind Regions

U.S. Wind Regions
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Ultra-efficient, R-9, triple-pane windows have insulated wood frames, argon gas between the panes, and low-emissivity coatings to slow heat transfer.

Ultra-efficient, R-9, triple-pane windows have insulated wood frames, argon gas between the panes, and low-emissivity coatings to slow heat transfer.
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Underneath the roof sheathing and two exterior layers of rigid foam, the builder stapled netting to the underside of the rafters and filled the roof cavities of the unvented attic with blown-in fiberglass insulation.

Underneath the roof sheathing and two exterior layers of rigid foam, the builder stapled netting to the underside of the rafters and filled the roof cavities of the unvented attic with blown-in fiberglass insulation.
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Underwriters Laboratory label for a safe room door.

Underwriters Laboratory label for a safe room door.
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Unfaced batt and blown fiberglass wall insulation are installed to RESENET Grade 1 standards with no gaps or voids.

Unfaced batt and blown fiberglass wall insulation are installed to RESENET Grade 1 standards with no gaps or voids.
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Unfaced batt insulation completely fills the wall cavities.

Unfaced batt insulation completely fills the wall cavities.
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Unfaced fiberglass batt insulation is installed to completely fill the wall cavities and is sliced to fit around wiring, piping, and other obstructions in the wall cavities

Unfaced fiberglass batt insulation is installed to completely fill the wall cavities and is sliced to fit around wiring, piping, and other obstructions in the wall cavities
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Uninsulated hot water heating pipes

Uninsulated hot water heating pipes
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Uninsulated, unsealed, or missing rim joists allow attic air and heat into the floor cavity

Uninsulated, unsealed, or missing rim joists allow attic air and heat into the floor cavity
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United Way built this affordable home in the mixed-humid climate in Deer Park, NY, and certified it to DOE Zero energy Ready Home specifications in 2016.

United Way built this affordable home in the mixed-humid climate in Deer Park, NY, and certified it to DOE Zero energy Ready Home specifications in 2016.
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United Way of Long Island built this affordable home in the mixed-humid climate in Coram, NY, and certified it to DOE Zero Energy Ready Home specifications in 2018.

United Way of Long Island built this affordable home in the mixed-humid climate in Coram, NY, and certified it to DOE Zero Energy Ready Home specifications in 2018.
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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.
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Unscrew the screws on the outlet or switch to take it out of the electrical box to access and air seal any holes in the back of the box.

Unscrew the screws on the outlet or switch to take it out of the electrical box to access and air seal any holes in the back of the box.
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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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Untreated lumber has been used on a below-grade wall against masonry

Untreated lumber has been used on a below-grade wall against masonry
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Unvented air-sealed crawlspace is insulated along the perimeter walls with rigid foam

Unvented air-sealed crawlspace is insulated along the perimeter walls with rigid foam
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Unvented concrete masonry unit crawl space with exterior insulation - designed for termite resistance in moderately infested areas

Unvented concrete masonry unit crawl space with exterior insulation - designed for termite resistance in moderately infested areas
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Unvented crawl space with interior insulation - designed for termite resistance in heavily infested areas

Unvented crawl space with interior insulation - designed for termite resistance in heavily infested areas