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EERE » BTO » Building America » Solution Center Home » Image Gallery » A layer of rigid foam is sandwiched between two layers of 2x8 lumber in this insulated header over a window.

A layer of rigid foam is sandwiched between two layers of 2x8 lumber in this insulated header over a window.

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A layer of rigid foam is sandwiched between two layers of 2x8 lumber in this insulated header over a window.

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BrightLeaf Homes

Building America Solution Center is a resource of the U.S. Department of Energy's Building Technologies Office.
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