Most people will agree that buildings experience significant movement on a day-to-day basis. Accommodating this movement is crucial for a successful installation of ceramic, porcelain and/or glass tile. Although there are many causes for movement in a structure, temperature and moisture changes play a large role.
Tiled floors can move significantly when affected by heat. The source of this temperature swing may be a result of the increasingly popular use of in-floor heat. In this case, the floor tiles will expand as the electrically heated cable (or the tubing which carries water heated by a boiler) varies in temperature. When the heat is on, the floor expands. When the heat cycles off, the floor cools and contracts.