Sealing Concrete Shower Walls
Anyone can enjoy the benefits of a cement board shower system if you follow these 3 easy steps.
Sealing concrete shower walls. By closing the final gap you seal the entire surface of the cement board and complete the waterproofing process in preparation for the tile installation. I show the process of applying redgard topical membrane. If you re worried about the concrete absorbing moisture all it takes is the application of a waterproofing sealer to make your shower walls completely waterproof. Place a line of caulk along the one quarter inch gap at the bottom of the cement board to seal the wall from water seeping through the tile covering.
While concrete may not be your first thought when you are designing your shower and bath it has increasingly become a common material used. Seal a concrete shower and bath with a penetrating non slip concrete sealer in order to make cleaning easier and prevent the growth of mold and mildew. And find local concrete contractors that can create your custom shower. The most common technique is to apply multiple coats of a penetrating sealer like a water based polyurethane.