Step-by-Step Guide to Installing Cement Board Around a Tub for a Seamless and Durable Finish

How to Install Cement Board Around a Tub

Installing cement board around a tub is an essential step in creating a waterproof and durable shower or bathtub area. This material not only adds a sleek, modern look to your bathroom but also provides a solid foundation for tile installation. In this article, we will guide you through the process of installing cement board around a tub, ensuring a professional and long-lasting result.

Materials and Tools Needed

Before you begin, gather the following materials and tools:

– Cement board
– Saw (hand saw or circular saw)
– Utility knife
– Level
– Tape measure
– Chalk line
– Caulk gun
– Caulk
– Grout
– Grout float
– Sponge
– Bucket

Step 1: Prepare the Area

Start by removing any existing tiles or materials around the tub. Clean the area thoroughly, ensuring it is free of debris and dirt. If the tub is attached to the wall, use a reciprocating saw to cut through the studs to allow for the cement board to fit properly.

Step 2: Measure and Cut the Cement Board

Measure the area around the tub, including the walls and floor, to determine the size of the cement board you will need. Cut the cement board to fit using a saw. If necessary, score the board with a utility knife and snap it along the score line to achieve a clean cut.

Step 3: Attach the Cement Board to the Wall

Apply a thin layer of adhesive to the back of the cement board using a notched trowel. Starting at the bottom of the wall, press the cement board firmly against the surface, ensuring it is level. Use spacers to maintain an even gap between the board and the tub. Continue attaching the cement board to the entire wall, working your way up to the ceiling.

Step 4: Attach the Cement Board to the Floor

Measure and cut the cement board to fit the floor area around the tub. Apply adhesive to the back of the board and press it firmly into place, making sure it is level. Use spacers to maintain a gap between the board and the tub. Repeat this process until the entire floor area is covered.

Step 5: Caulk the Seams

Using a caulk gun, apply a bead of caulk along the seams where the cement board meets the tub, the wall, and the floor. This will help to create a waterproof seal and prevent water from seeping through. Smooth the caulk with your finger to create a seamless finish.

Step 6: Allow the Caulk to Dry

Give the caulk ample time to dry and cure. This may take several hours, depending on the type of caulk used.

Step 7: Install Tile

Once the cement board and caulk are dry, you can proceed with tile installation. Follow the manufacturer’s instructions for applying tile adhesive and grout. Use a grout float to spread the grout evenly between the tiles, and then wipe away any excess with a sponge.

Conclusion

Installing cement board around a tub is a crucial step in creating a durable and waterproof bathroom space. By following these steps and using the proper materials and tools, you can achieve a professional-looking result that will last for years to come. Remember to take your time and ensure that each step is completed correctly to avoid any future issues.