Vapor retarders are sheet materials used below slab-on-ground floors to limit the amount of moisture that migrates into and upward through concrete slabs. If unchecked, moisture can cause floor ...

Homeowners often ask if a vapor barrier is necessary for optimizing attic insulation and protecting their homes from moisture-related damage. The answer, however, isn’t one-size-fits-all.

For example, when insulating crawl spaces, a vapor barrier is installed directly on the ground to keep moisture from rising into the air and causing issues in the flooring and foundation above.’ ...