How To Lay Down Cement Board For Tile

Cement board is a popular backer board for tile installations because it is moisture-resistant, durable, and relatively easy to work with. If you are planning to install tile in your home, it is important to know how to lay down cement board correctly. Here are the steps you need to follow:

Step 1: Prepare the Subfloor

The first step is to prepare the subfloor. The subfloor should be level, smooth, and free of any debris. If the subfloor is not level, you will need to level it using a self-leveling compound.

Step 2: Install the Cement Board

Once the subfloor is prepared, you can begin installing the cement board. Start by measuring and cutting the cement board to fit the area where you will be installing the tile. Once the cement board is cut, apply a thin layer of thinset mortar to the back of the board. Then, press the cement board into place on the subfloor.

Step 3: Screw Down the Cement Board

Once the cement board is in place, you need to screw it down to the subfloor. Use galvanized screws that are at least 1 1/4 inches long. Space the screws evenly, about 6 inches apart.

Step 4: Tape the Seams

Once the cement board is screwed down, you need to tape the seams between the boards. This will help to prevent water from seeping into the seams and damaging the tile installation. To tape the seams, use a mesh tape and thinset mortar. Apply a thin layer of thinset mortar to the seam, then press the mesh tape into the mortar. Smooth the mortar over the mesh tape, making sure that the mesh tape is completely covered.

Step 5: Let the Thinset Dry

Once the seams are taped, you need to let the thinset dry. This will usually take about 24 hours. Once the thinset is dry, you can begin installing the tile.

Tips for Laying Down Cement Board

Here are a few tips for laying down cement board:

Use a level to make sure that the subfloor is level before you install the cement board.
Apply a thin layer of thinset mortar to the back of the cement board before you press it into place.
Screw the cement board down to the subfloor using galvanized screws that are at least 1 1/4 inches long.
Tape the seams between the cement boards using mesh tape and thinset mortar.
Let the thinset dry for at least 24 hours before you begin installing the tile.

By following these steps, you can lay down cement board for tile like a pro.