How To Install Cement Board For Tile Shower

Installing cement board for a tile shower is a crucial step in creating a durable and water-resistant shower enclosure. Cement board, also known as backer board, provides a stable and rigid surface for tiles, preventing cracking and water damage. This article will guide you through the process of installing cement board for your tile shower, ensuring a successful and long-lasting project.

Preparing the Shower Area

Before installing the cement board, proper preparation is essential. This involves removing any existing materials, cleaning the area, and ensuring a smooth and level base for the board.

Remove Existing Surfaces:

If the shower contains existing tile, drywall, or other materials, carefully remove them. Use a hammer and chisel for stubborn materials.

Clean the Area:

Thoroughly clean the shower area, removing any dust, debris, or existing adhesive residue. Use a broom and dustpan or a damp cloth to ensure a clean surface for bonding.

Inspect the Studs:

Verify that the studs in the shower area are properly spaced and secure. If necessary, add additional studs for support.

Create a Level Base:

Use a level and shims to ensure that the floor and walls are level. Any unevenness can affect the installation of the cement board and lead to problems with the tile.

Installing the Cement Board

Once the shower area is prepared, you can begin installing the cement board. This involves cutting the board to size, attaching it to the walls and floor, and ensuring proper sealing and waterproofing.

Measure and Cut:

Cut the cement board to the desired sizes using a utility knife or a circular saw with a carbide-tipped blade. Mark the cutting lines with a pencil and score the board several times before breaking it along the score line.

Apply Adhesive:

Apply a thin layer of construction adhesive to the back of the cement board, ensuring an even spread across the entire surface.

Secure with Screws:

Attach the cement board to the walls and floor using screws specifically designed for cement board. Secure the screws every 6-8 inches along the edges and 12-16 inches in the center of the board.

Seal the Joints:

Use a waterproof sealant to create a watertight seal around the edges of the cement board where it meets the walls, floor, and any plumbing fixtures. Apply the sealant generously and allow it to dry completely.

Waterproofing the Cement Board

Waterproofing the cement board is crucial for a leak-proof shower enclosure. This involves applying a waterproof membrane over the entire surface of the cement board.

Select a Waterproof Membrane:

Waterproof membranes are available in different forms, including liquid-applied membranes, sheet membranes, and membrane-coated cement boards. Choose the one that best suits your needs and budget.

Apply the Membrane:

Follow the manufacturer’s instructions regarding the application process for your chosen waterproof membrane.

Allow Sufficient Drying Time:

Allow the waterproof membrane to dry completely before proceeding to the next step, which is typically tiling the shower.

Create a Slope:

Ensure that the shower floor has a slight slope towards the drain to allow water to flow away properly. Use a level to check the slope and adjust the cement board if needed.

Final Considerations

Remember that the installation of cement board is only one part of the shower construction process. You will need to complete the tiling, grout, and caulk steps to create a fully functional and aesthetically pleasing shower.

When installing cement board for your tile shower, always follow the manufacturer’s instructions for the specific materials you are using. If you are not comfortable performing this task, consider hiring a professional contractor for installation. A properly installed cement board will ensure durability, water resistance, and long-lasting performance for your shower.