House Digest on MSN7mon
Here's When You Should Use A Vapor Barrier During A Flooring InstallationClass I is the strongest type of vapor barrier and provides the lowest level of permeability. This includes materials such as ...
Vapor retarders are sheet materials used below slab-on-ground floors ... As shown in Table 1, a Class A vapor retarder will be more resistant to tearing and puncturing than a Class B or C.
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