Use the right waterproofing product.








Mapelastic should be the consistency of peanut butter.









Mapelastic applied tothe concrete surfaces to prevent moisture from entering.












Installing a basement bathroom presents its own challenges.  One of them being the natural moisture that can enter through the concrete foundation from the outside.

You should always use a moisture barrier to prevent this from happening.  I like using Mapelastic HPG flexible waterproofing membrane for concrete walls.  When applying Mapelastic HPG it should be the consistency of peanut butter.  You can apply the membrane with a trowel or a roller, but I prefer a roller because the application will be both faster and evener.  Usually, two coats are recommended.