How To Level Plywood Bathroom Floor Before Installing Backer Board

Add more mortar as necessary to fill sunken areas in.

How to level plywood bathroom floor before installing backer board.

Use corrosion resistant nails or screws to attach the cement backer board to the plywood subfloor. And 3 grind the hump of the plywood. Before installing ceramic tile on a plywood subfloor it s important to put down a layer of cement backer board first. Screws every 6 in.

Lay the backer board according to the manufacturer s instructions. With the plywood in place install the backer board as you normally would. Leave a 1 4 gap between the backer board and walls and 1 16 gap between the sheets of backer board. Ceramic tile makes a durable flooring material that resists moisture and heavy traffic if it s installed properly.

Floors are rarely perfectly level. Using the trowel spread adhesive and ridge it with the notched side of the trowel. Remember that it is best when joints in the backer board are not aligned with the joints in the subfloor. Spread the mortar to about 3 16 thickness.

Add a layer of 1 2 in. If the floor is uneven lift up the board until it is level so you ll know how much flooring compound you ll need to even it out. The plywood adds stiffness and stability to the floor. Next place a sheet of the backer board over the wet adhesive.

In order to level the subfloor to install tile the builder suggests 1 to put a paper on plywood and pour self leveler and skip hardibacker. Mix up and apply a modified thinset to a large enough area of the plywood subfloor to cover each piece of backer board using a 1 4 x 1 4 notched trowel. 2 to pour self leveler on plywood directly and skip hardiback. Use a chalk line to mark the dimension of the backer board sheets onto the floor.