As far as garage floor finishes go, the choices are vast. Resurfacing your garage floor with ceramic tile is more of a statement of beauty rather than function. While commercial grades of ceramic tile will stand up to grease, motor oil and gasoline, they can crack if a heavy item is dropped on them. Ceramic tiling a garage floor is an excellent choice if you use your garage as a multi purpose room, more of an extension of your living space rather than a work room.
Choosing Tile for the Garage Floor:
Choose a commercial grade ceramic tile which is more likely to stand up to the abuse garage floor finishes are subjected to.
Choose a tile with a rough finish to avoid a slippery surface.
Installing Tile on a Garage Floor:
Remove everything from your garage floor.
Sweep all dirt and debris off of your garage floor.
Remove any previous garage floor finish such as garage floor sealer or paint. To remove previous garage floor finishes you will have to use either an acid based concrete etching or a floor grinder to strip the garage floor finish completely. Stripping off an old garage floor finish will open up the underlying concrete and allow for good adhesion. When working with either a floor grinder or an acid etching product always wear protective gear such as goggles and gloves.
If you have any remaining stains, spot treat them with the acid etching to remove them.
Use a long straight pipe and roll the pipe on the floor to check your garage floor for evenness. If you find any uneven areas mark them. Circle the uneven areas with chalk.
Use mortar to build-up any low spots or depressions on the garage floor. Allow the mortar to dry completely.
Work in small areas, about 3 foot by 3 foot is a good manageable area.
Wet the surface of your garage floor. Use a broom dipped in water.
Use a trowel to apply a thin coat of mortar to the section of the garage floor. The coat should only be 1/4 of an inch thick. Smooth it out.
Use a trowel and apply a second layer of mortar before the first layer dries. The second layer should only be about 1/4 of an inch thick also. Use the serrated edge of the trowel to rake the mortar. Raking the mortar basically means to drag your trowel across the mortar so you have straight lines.
Lay the first tile. Begin in the most exposed are of the garage floor because as you work you will find the garage is not square and you will have some tile cutting to do.
Sink the first tile into the mortar by giving it a firm even press.
Use tile spacers or a thin piece of wood between the first tile and the next tile. Press the second tile in and so on. After every 2 to 4 tiles place a 2"x4" over the top and gently tap with a rubber mallet on the 2"x4" to seat the tiles.
After you have installed all of your ceramic tiles on the garage floor, grout the tiles.
Choose a dark colored grout and make sure you seal your grout to protect the grout from stains.
Now, sit back and admire your new garage floor finish.