Vapor barrier

There is a collection of experience in the home building industry that states that crawlspaces need to have a vapor barrier (or more accurately, a vapor retarder). These help prevent too much moisture from coming up out of the soil to cause problems in the crawlspace.

Here are some opinions on the subject:

www.bobvila.com/TipLibrary/Location/Crawl_Space/0581-Vapor_Barrier.html www.chrisdhilton.com/newsletters/crawl_space_ground_vapor_barriers.htm www.nofma.org/tips7.htm

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