Anything short of those two options is taking a risk.
Correct way to install ceramic floor with 4 inch hardibacker.
Some backer board manufactures have identified the locations on the backer board where the screws need to be placed.
The floorelf describes the proper method of installing cement or cementious backerboards on a floor for tile installation.
As long as the subfloor is 3 4 in.
Cement boards that some in sheets.
With the smooth side of a 1 4 inch notched trowel spread enough mortar for one sheet.
Required tools for this project.
Use 1 1 4 inch screws for 1 4 inch backerboard.
That is used as the substrate for ceramic and stone tile installations.
If installing hardiebacker cement board over existing floor ensure the floor is flat.
Should i put 1 4 inch plywood on whole floor and then kerdi on that and 1 4 inch backerboard on the rest 1 4 ply 1 4cement to be 1 2.
With the plywood in place install the backer board as you normally would.
Tongue and groove material screw the underlayment down right through the vinyl with 1 1 4 in.
Thick cement board instead of the usual 1 2 in.
To avoid building up the floor too high you can use 1 4 in thick backer board instead of 1 2 in.
For ceramic tile floors the cement board usually rests on a plywood subfloor minimum 5 8 inch thick exterior grade plywood or osb if new ceramic tile is being laid on an existing floor the cement board can usually be laid right over the existing floor finish provided it is in good shape and the extra floor thickness is not a problem.
The plywood adds stiffness and stability to the floor.
If you re preparing to do a ceramic floor or wall installation it s recommended that you install hardiebacker cement board on your subfloor or wall before you begin to lay the tile.
Thin set dries slowly allowing you to fix and readjust backerboard sheets as needed.
Drywall screws spaced every 6 in.
The other way to do it is to remove the planks and install 5 8 or 3 4 subflooring.
Cement board doesn t add to the structural strength of your floor.
The only way to do this right is to go over the t g planks with 1 2 inch ac plywood.
Hardiebacker is available in both 1 4 inch and 42 inch thick hardiebacker 500 versions and is designed to add mold and moisture resistance to tile installations.
Use 1 5 8 inch screws for 1 2 inch backer board.
Hardiebacker cement board may be installed under or over vinyl composition tile vct and other resilient flooring.
Hardiebacker sometimes called hardie board refers to a cement based panel manufactured by the james hardie co.
Drive screws every 8 inches around the perimeter of each board 1 2 inch from the edges and 2 inches from the corners.
Then you can use a thin membrane over that if you want.
For best results remove existing floor covering especially if it is in poor condition.
Vinyl flooring glued over 1 4 in.
Use thin set mortar when installing cement backerboard.