How Thick Should a Vapor Barrier Be in a Crawl Space?

People have a variety of opinions on the preferred thickness of a vapor barrier for the crawl space. The IRC mandates at least a 6–mil vapor barrier, but you certainly shouldn’t settle for the bare minimum. If you want the maximum coverage that makes sense for a crawl space, consider something like the CrawlSeal™ 20–mil vapor barrier.

Publish Date:

Last Modified Date: