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EERE » BTO » Building America » Solution Center Home » Image Gallery » The builders sprayed the underside of the roof assembly with 6 inches of open-cell spray foam to create an unvented, R-48 insulated attic.

The builders sprayed the underside of the roof assembly with 6 inches of open-cell spray foam to create an unvented, R-48 insulated attic.

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The builders sprayed the underside of the roof assembly with 6 inches of open-cell spray foam to create an unvented, R-48 insulated attic.

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United Way of Long Island

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