my husband put in tile in the motel i work at and it is ceramic tile and some of the rooms are popping up up can you tell me why? by the way could it be the climate i live in florida!
I would say either the wrong substrate was used. Substrate is the material directly under the tile. Chances are he installed the tile over another floor material that was not suitable for tile. Cement board is the most widely used substrate, but it needs to be screwed down properly so it does not move at all. If the substrate moves, then the tile will also work loose after stepping on it which forces it to move up/down. If he applied thin set over existing ceramic tile that was not cleaned, the thin set probably did not stick. Pull up a pc. of loose tile - is the thin set or other adhesive still stuck on the back of the tile? Sometimes the wrong adhesive won't stick to the back of the ceramic tiles. Humidity won't affect the tile if it was installed correctly.
Could be the humidity. What did he use to stick them down? Did he use a mastic that comes already mixed in a tub? If so, there will probably always be problems in a humid or wet areas. Thinset is best for tile.
