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Rigid foam provides the code-required insulation values for this floor and wall assembly so that fibrous cavity insulation can be avoided, reducing risk of floodwater damage

Rigid foam provides the code-required insulation values for this floor and wall assembly so that fibrous cavity insulation can be avoided, reducing risk of floodwater damage
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Rigid foam wraps the exterior of the foundation slab.

Rigid foam wraps the exterior of the foundation slab.
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Rigid insulation and air-sealing can be used to thermally isolate garages from multifamily row houses/town houses with basement foundations in IECC Climate Zones 3 or higher.

Rigid insulation and air-sealing can be used to thermally isolate garages from multifamily row houses/town houses with basement foundations in IECC Climate Zones 3 or higher.
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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
CAD File:

Rigid Insulation Over Aggregate

Preview Image
Rigid Insulation Over Aggregate
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Riprap is placed on a hillside to stabilize the ground and reduce erosion

Riprap is placed on a hillside to stabilize the ground and reduce erosion
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Rising Above The Flood: Raising homes above the 100-year flood level

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Roof penetrations are minimized to provide more space for PV panels.

Roof penetrations are minimized to provide more space for PV panels.
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Roof-mounted solar panels shade the roof below them (left), significantly reducing the roof’s surface temperature (thermal image on the right - yellow region under the panels is cooler than the red and white region on the exposed portion of the roof)

Roof-mounted solar panels shade the roof below them (left), significantly reducing the roof’s surface temperature (thermal image on the right - yellow region under the panels is cooler than the red and white region on the exposed portion of the roof)
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Roofing material and slope

Roofing material and slope
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Roofing membrane is installed over polyisocyanurate rigid foam insulation and insulation cover board that has been cut to fit around locations for blocking for the PV system rack

Roofing membrane is installed over polyisocyanurate rigid foam insulation and insulation cover board that has been cut to fit around locations for blocking for the PV system rack
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Rooftop portion of thermosiphon solar hot water system

Rooftop portion of thermosiphon solar hot water system
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Saturated ground water

Saturated ground water
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Screws Instead of Hurricane Ties?

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Seal the crack between the sill plate and the foundation wall

Seal the crack between the sill plate and the foundation wall
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Sealing walls to foundation using SIGA tape

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Seven categories of exterior window shading attachments, identified on the DOE Efficient Window Coverings website.

Seven categories of exterior window shading attachments, identified on the DOE Efficient Window Coverings website.
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Shear Strength Comparison Between a Foundation Stud Anchor (on left) and a Shear Transfer Angle (on right)

Shear Strength Comparison Between a Foundation Stud Anchor (on left) and a Shear Transfer Angle (on right)
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Shed roofs provide more space for PV panels in this multifamily project near Denver, Colorado.

Shed roofs provide more space for PV panels in this multifamily project near Denver, Colorado.
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Side by side comparisons of standard roofing colors (top row) and cool colors (bottom row) shows that solar reflectance (R) can be reduced significantly using special coatings with almost no change to the color

Side by side comparisons of standard roofing colors (top row) and cool colors (bottom row) shows that solar reflectance (R) can be reduced significantly using special coatings with almost no change to the color
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Slab-on-grade radon control techniques

Slab-on-grade radon control techniques
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Slab-on-grade termite control techniques

Slab-on-grade termite control techniques
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Slab-on-grade with concrete masonry stem wall and exterior insulation

Slab-on-grade with concrete masonry stem wall and exterior insulation