have found that air leakage generally moves a lot more moisture than diffusion. Therefore the air barrier is much more important than the vapor barrier. So if you’re concerned about really keeping moisture out of your wall and ceiling cavities, you ought to be paying close attention to the ...
Why Is a Vapor Barrier Important in a Crawl Space? Moisture is one of the most common enemies of a home's structure, with the ability to cause structural issues. Water that is not regulated can cause rot and decay in wood framing and other materials and mold and mildew. For example, th...
That is, unlike at least the first sheet 15 and the third sheet 17 (as described in further detail below), the second sheet 16 may be configured to substantially retard the flow of gases (e.g. air and moisture), without requiring the use of a separate vapor or air barrier or an ...