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Do You Need a Vapor Barrier in the Attic?vapor retarders allow for some level of vapor permeability, whereas plastic vapor barriers are designed to be impermeable. Retarders are often preferred in climates where completely blocking vapor ...
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Traditional vs. Sustainable Building MaterialsSmart Vapor Retarder vs. 6-mil Poly Sheeting One new-to-us product we incorporated in our Sustainable Retreat is known as a smart vapor retarder. We chose MemBrain Vapor Retarder by CertainTeed ...
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