We installed glass tiles 6 months ago, and now a few pieces are breaking. Whats going on?
The answer probably lies underneath the surface. For clues, look at the type of cracks. For example, if a crack has developed across two or more tiles, then it is likely that the substrate is giving way. If the cracks are isolated to individual tiles, expect the adhesive to have been applied incorrectly (too thick and too wet) and now the shrinking adhesive is causing stress on the glass. Install glass tiles over stable substrates and follow the manufacturer’s instructions. Our experience is that most installation problems can be avoided with the proper use of a crack-suppression membrane and thinset.
