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Rigid foam insulation and a thin slab were installed over the dirt and gravel of this sealed crawlspace

Rigid foam insulation and a thin slab were installed over the dirt and gravel of this sealed crawlspace
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Rigid foam insulation is installed on the garage side of the shared garage wall and roof of an existing home

Rigid foam insulation is installed on the garage side of the shared garage wall and roof of an existing home
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Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist

Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist
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Rigid insulation is installed on the exterior side of the flat foundation wall

Rigid insulation is installed on the exterior side of the flat foundation wall
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Roof supports for the awning that will cover the heat pump compressor are anchored through the siding into studs with long screws.

Roof supports for the awning that will cover the heat pump compressor are anchored through the siding into studs with long screws.
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Roofing material and slope

Roofing material and slope
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ROXUL Mineral Wool | Madrona Passive House

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Run-out ducts are installed over partition walls

Run-out ducts are installed over partition walls
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SAE J-1772 and NACS J-3400 are the two most common charging port styles for electric vehicles.

SAE J-1772 and NACS J-3400 are the two most common charging port styles for electric vehicles.
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Screw the storm window frame into the existing window’s wood casing to secure it.

Screw the storm window frame into the existing window’s wood casing to secure it.
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Seal all drywall-to-top plate seams and penetrations at the attic floor

Seal all drywall-to-top plate seams and penetrations at the attic floor
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Seal the drywall to top-plate seams and the lower edge of baffles to the top plate to prevent the air coming from soffit vents from flowing under baffles into insulation.

Seal the drywall to top-plate seams and the lower edge of baffles to the top plate to prevent the air coming from soffit vents from flowing under baffles into insulation.
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Sealed blocking

Sealed blocking
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Secure Shingle Tabs

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Select flooring appropriate for wet areas

Select flooring appropriate for wet areas
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Side view showing air-sealing and rigid foam insulation is installed over existing wall and ceiling under a room above, then covered with new gypsum board.

Side view showing air-sealing and rigid foam insulation is installed over existing wall and ceiling under a room above, then covered with new gypsum board.
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Side view showing how the existing garage wall and ceiling are air-sealed prior to installing rigid foam insulation on the garage side of the shared wall of an existing home.

Side view showing how the existing garage wall and ceiling are air-sealed prior to installing rigid foam insulation on the garage side of the shared wall of an existing home.
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Siding has been removed so cellulose insulation can be dense-packed into the exterior walls of this home

Siding has been removed so cellulose insulation can be dense-packed into the exterior walls of this home
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Signage can help drivers locate EV charging spaces.

Signage can help drivers locate EV charging spaces.
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Sill Plates (2)

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Single framed wall converted to double wall and insulated with closed-cell spray foam and loose-fill fibrous insulation

Single framed wall converted to double wall and insulated with closed-cell spray foam and loose-fill fibrous insulation
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Size the filter box for the appropriate filter

Size the filter box for the appropriate filter
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Sleepers (tapered wood furring strips) are installed over the existing board sheathing to slope the new sheathing toward the drain in this flat roof retrofit

Sleepers (tapered wood furring strips) are installed over the existing board sheathing to slope the new sheathing toward the drain in this flat roof retrofit
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Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.

Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.