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EERE » BTO » Building America » Solution Center Home » Image Gallery » Closed-cell backer rod is installed for air-sealing window and door rough openings.

Closed-cell backer rod is installed for air-sealing window and door rough openings.

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Building America Solution Center is a resource of the U.S. Department of Energy's Building Technologies Office.
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OFFICE of
ENERGY EFFICIENCY AND RENEWABLE ENERGY

Forrestal Building
1000 Independence Ave. SW
Washington DC 20585

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