I got a call last fall from a homeowner in Ocala who wanted to retile her master bathroom shower. She told me the grout was cracking and a few tiles had come loose. What we found behind those tiles was what happens when a shower is tiled directly over standard drywall with no waterproofing and no backerboard, and then left to accumulate moisture for twenty-six years. This is the post I wish she had read before she bought the house.
