Your Shower Is Not Naturally Waterproof!
Oddly enough, there’s really nothing in your shower that’s naturally waterproof. Not the grout, not the cement backing, not the sealers, backer board, or the tile; nothing. Sure, some types of tile, sealers, etc. may fend off a little more moisture than others, but they all fall to the power of H2O eventually. Here’s the really dangerous thing about all of these materials though: they don’t show their wounds. Without waterproofing your shower may last only a short time, but i