Definitions: P - Insulation & vapor sealing

polyethylene vapor barrier

A polyethylene vapor barrier is a plastic sheet attached to the warm side of an exterior facing wall to block the transmission of water vapor to the cool side of the wall. When properly installed, a polyethylene vapor barrier will prevent in wall moisture and mold problems.


References - polyethylene vapor barrier

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Service Professionals that can help with polyethylene vapor barrier issues



Common projects involving polyethylene vapor barrier



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