An alternative to tiles, tile boards come in larger, 8-foot-by-4-foot panels that you can install more easily and quickly. They resemble tiles in appearance, and the ones made for the bathroom resist moisture well. Tile boards usually cost less than real tiles. The higher the quality, the more tile boards resemble real tiles. However, they generally look less and less real with age. Some tile boards only suit dry interior surfaces, so check with your supplier before purchasing your tile boards.
Stack the tile board panels on the floor or against the wall in the bathroom to condition them for the bathroom environment. Place spacers between the panels. Leave them there for 48 hours to allow the room air to circulate around the panels.
Sand the surface of the walls to create an even surface for the tile boards.
Use a piece of cloth to remove any dust on the back of the tile board panels to encourage good bonding between the panels and the walls.
Hold a level where the top of the tile board panels will be and draw a horizontal line to guide you during installation.
Mix tile board adhesive according to the product label instructions and spread it on the back of a tile board panel. Use a 3/16-inch notched trowel to scrape the adhesive to create ridges. A notched trowel has indentations in its edges for proper adhesive application.
Press the tile board panel against the wall, aligning it with the horizontal line you drew in Step 4. Wait 15 minutes and press the panel again to help it adhere well to the wall.
Apply adhesive to the back of another panel of tile board and press it against the wall, leaving a space of 1/8 inch between the two panels. Repeat until you have applied all the tile board panels.
Apply silicone caulk in the 1/8-inch spaces between tile board panels when the adhesive is completely dry. This prevents water from entering these spaces and damaging the tile board or wall.