How To Build A Shower Pan For Tile On Concrete Floor

How to Build a Shower Pan for Tile on Concrete Floor

Building a shower pan is an essential step in creating a waterproof and durable shower system. When installed correctly, a shower pan will prevent water from leaking through the concrete floor and causing damage to the subfloor and surrounding areas.

Materials You'll Need

* Concrete backer board (1/2-inch or 3/4-inch) * Mortar mix or thin-set mortar * Trowel * Tape measure and pencil * Level * Caulk gun * Silicone caulk * Shower drain * Drain flange * Screws

Step 1: Prepare the Concrete Floor

* Ensure that the concrete floor is level and free of any debris or imperfections. * If necessary, use a concrete leveling compound to smooth out any uneven areas. * Allow the leveling compound to cure according to the manufacturer's instructions.

Step 2: Install the Shower Drain

* Determine the center of the shower area and mark the location of the shower drain. * Cut a hole in the concrete floor using a hammer drill or a rotary tool. The hole should be slightly larger than the drain flange. * Insert the shower drain into the hole and secure it with screws.

Step 3: Install the Concrete Backer Board

* Cut the concrete backer board to fit the shower area. * Apply mortar mix or thin-set mortar to the concrete floor and press the backer board into place. * Use a trowel to spread the mortar evenly and ensure that the backer board is firmly adhered to the floor. * Use a level to ensure that the backer board is level and plumb.

Step 4: Create the Shower Pan

* Apply a generous amount of mortar or thin-set mortar to the backer board around the shower drain. * Press the drain flange into the mortar and secure it with screws. * Use a trowel to slope the mortar away from the drain towards the walls. The slope should be approximately 1/4 inch per foot. * Allow the mortar to cure according to the manufacturer's instructions.

Step 5: Seal the Joints

* Apply silicone caulk to all the joints between the shower pan, the backer board, and the drain flange. * Use a caulk gun to apply the caulk evenly and smoothly. * Smooth out the caulk using a wet finger or a caulk-finishing tool.

Step 6: Install the Tile

* Once the shower pan is complete and the caulk has cured, you can begin installing the tile. * Apply thin-set mortar to the back of the tile and press it into place on the shower pan. * Use a level to ensure that the tile is level and plumb. * Continue installing the tile until the entire shower pan is covered.

Step 7: Grout the Tile

* Once the tile has been installed, you can begin grouting the joints. * Mix the grout according to the manufacturer's instructions and apply it to the joints using a grout float. * Use a damp sponge to clean the excess grout from the tile surface. * Allow the grout to cure according to the manufacturer's instructions.

Tips

* Use a high-quality concrete backer board that is specifically designed for use in wet areas. * Apply the mortar or thin-set mortar in a thick and even layer to ensure a strong bond between the backer board and the floor. * Slope the mortar away from the drain to prevent water from pooling on the shower pan. * Use silicone caulk that is specifically designed for use in wet areas. * Allow the mortar and grout to cure completely before using the shower.