Wall Preparation Before Tile a Wall
Prepare the area around your walls. Place drop cloths on the floor to catch dust and tile pieces. Wear protective clothing. You should use safety goggles, long shirts, long pants and gloves. Broken wall tile can be sharp and dangerous.
Remove the old tile, if necessary. It is inadvisable to try to tile over old tile, because your surface will not be even. Use a chisel and a hammer to crack existing tiles. Once cracked, remove the cloud tile in pieces, if it does not fall off automatically. Chisel off remaining pieces. Beware not to gouge the wall too deeply, or you may create an uneven surface.
If the resulting wall is very uneven, you may want to re-plaster it. It is best to hire a professional to plaster the walls. If you are installing wall tile in a bathroom or other wet area, use cement fiberboard on the surface before you adhere tile. Sand the wall with medium-grit sandpaper to create an even surface. If you are not removing previous tile, you will still want to scuff up glossy surfaces with a fine-grit sandpaper to help the adhesive stick.
Buy your tiles. Porcelain tiles are available through the Internet, home improvement stores and decorators. Buy extra tile for your project, since tiles will break in the process. Take your tile to the home improvement store to try out glue. Different ceramic tiles require different types of glue. You do not want your glue to discolor the wood tile. Apply a wall sealant. This mild adhesive product will keep the glue moist while you complete your project. It is available at home improvement stores.
Cure grout. Allow grout to cure for 24 to 48 hours before stepping on it to ensure its stability and to make sure that it is completely dry. Finish expansion joints. Caulk the expansion joints using a grout caulk in a color that matches your grout. Completely fill these expansion joints then smooth and concave using your finger. You can find grout caulk at large home improvement stores.