Basements improvements
Repairing Damp Basements: Why Encapsulation is the Best Upgrade for Older Foundations
...barrier is needed, but it is very difficult to seal the seams. If you're counting on it as a radon barrier (see more below), then an additional properly sealed radon membrane would be required. Here is a 15-mil radon membrane installation video guide to learn about how to properly seal joints and around plumbing penetr...