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EERE » BTO » Building America » Solution Center Home » Image Gallery » Rim joists are insulated with R-20 of open-cell spray foam which is air sealing and insulating but vapor permeable.

Rim joists are insulated with R-20 of open-cell spray foam which is air sealing and insulating but vapor permeable.

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Rim joists are insulated with R-20 of open-cell spray foam which is air sealing and insulating but vapor permeable.

Courtesy Of

Revive Properties

Courtesy Of

Philgreen Construction

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