How To Install Cement Backer Board For Tile Floor

Use a chalk line to mark the dimension of the backer board sheets onto the floor.

How to install cement backer board for tile floor.

Install the first sheet. I used to wait before overnight while letting the thinset cure but now i m starting to realizing that s almost an entire day wasted. First changes in humidity make solid wood shrink swell and cup more than plywood. Then spread thinset mortar with the flat side of a 1 4 in.

Do a dry run and lay the backerboard down to fully cover the area you plan to tile. Next place a sheet of the backer board over the wet adhesive. Precut and fit all the cement board and then lift all of the cement boards out. Am i correct in assuming that i can tile immediately after installing the cement board on the floors.

Plan so the joints in the backerboard won t line up with the joints in the subfloor. Remember that it is best when joints in the backer board are not aligned with the joints in the subfloor. Cement board screws spaced every 4 in. The edges of the cement board should be no closer than 8 inches to the joints in the subflooring.

Leave a 1 4 inch gap between the board and any adjacent walls. Notched trowel and use the notched edge to comb the mortar. Second the strength of wood boards isn t always consistent. According to backer board manufacturers and tile setters installing backer board directly over an old solid wood subfloor is risky for a couple of reasons.

Place the first cement board sheet lay the first sheet of cement board onto the mortar so the rough side of the board is facing up. Plan the placement of the cement backerboard sheets. Using the trowel spread adhesive and ridge it with the notched side of the trowel. How to install cement backerboard for floor tile.

Mix and apply the mortar.