It is well established that shower leaks are one of the most common, and costly, problems that a homeowner may face. In the past, one would tackle a tile shower installation by going to the hardware store to purchase a 40 mm sheet of CPE (Chlorinated Polyethylene) or PVC (Polyvinyl Chloride) large enough to cover the shower floor.No instructions would come with this sheet, which is perhaps the problem. How can a person fully understand what they are about to do when there is no process or i …