Tile installers are often called on to look at challenging installation opportunities and also use their expertise to solve problems when they occur. Finding the solution can be difficult, but sometimes we scratch our heads and say, “Why is it doing that?”
Many times installers are asked to install exterior tile on a job that appears to be elementary. Unfortunately, some of them develop issues at a later date. Take for instance a job calling for a natural stone to be installed on the exterior wall of a new retail store which has a roof above it. The plans call for the stone tile to be installed over a waterproofing membrane coating the cementitious backer board on steel studs. It sounds routine and it should function well; which it did in this case, for about a year.