Vapor retarders are often called vapor barriers ... Design, Installation and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs, ASTM ...

Vapor barriers are a crucial part of any moisture management system in a crawl space and are not difficult to install ... and mildew to grow out of sight under the home, which then circulates ...

If you're installing concrete slabs in a basement or another area of your home, you'll also need to install a vapor barrier to add protection. While not strictly required, you also need to add a ...