How To Tile A Shower Floor On Concrete Slab

Tiling a shower floor on a concrete slab is a relatively simple project that can be completed in a few hours. By following these steps, you can ensure a professional-looking finish that will last for years to come.

Materials You'll Need:

Tile
Thin-set mortar
Grout
Tile spacers
Notched trowel
Float
Sponge
Caulk gun
Caulk

Step 1: Prepare the Concrete Slab

The first step is to prepare the concrete slab by cleaning it thoroughly. Remove any dirt, dust, or debris that could interfere with the adhesion of the thin-set mortar. Once the slab is clean, you need to apply a thin layer of primer to help the thin-set mortar bond to the concrete.

Step 2: Apply the Thin-Set Mortar

Once the primer has dried, you can begin applying the thin-set mortar. Using a notched trowel, spread a thin layer of thin-set mortar over the concrete slab. Be sure to work in small sections so that the thin-set mortar does not dry out before you have a chance to set the tile.

Step 3: Set the Tile

Once you have applied the thin-set mortar, you can begin setting the tile. Start by placing the tile in the center of the shower floor and working your way out towards the edges. Use tile spacers to ensure that the tiles are evenly spaced.

Step 4: Grout the Tile

Once the tile has been set, you can begin grouting the joints. Using a float, spread the grout over the joints and work it into the spaces between the tiles. Be sure to remove any excess grout from the surface of the tile.

Step 5: Seal the Grout

Once the grout has dried, you can seal it to protect it from water damage. Apply a thin layer of grout sealer to the joints and allow it to dry completely.

Step 6: Caulk the Shower Floor

The final step is to caulk the shower floor. Apply a bead of caulk around the perimeter of the shower floor and smooth it out with your finger. This will help to prevent water from seeping into the cracks between the tile and the concrete slab.

Tips for Tiling a Shower Floor on a Concrete Slab

Use a level to ensure that the concrete slab is level before you begin tiling.
Allow the thin-set mortar to dry completely before grouting the tile.
Use a grout sealer to protect the grout from water damage.
Caulk the shower floor around the perimeter to prevent water from seeping into the cracks.