Vapor retarders are highly effective at controlling moisture diffusion in roofs, walls, ceilings, foundations, and attics. Having the right vapor retarder is essential to preventing long-term structural damage. A vapor barrier is a type of vapor retarder with a vapor permeance rating of 0.1 perms or less. Americover offers a variety of high-quality vapor retarders manufactured in the U.S. and tested to the most stringent national standards.

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