Attaching Backer Board To Floor
Second the strength of wood boards isn t always consistent.
Attaching backer board to floor. Make sure that the nail or screw heads are not sticking up above the board. Cover the joints in the backer board with fiberglass tape embedded in thin set adhesive and allow to set before tiling. First changes in humidity make solid wood shrink swell and cup more than plywood. If needed cut the backerboard to fit in small spaces or around obstructions.
Position each piece of backer board in the thin set press in place and attach using special backer board screws on the spacing recommended by the backer board manufacturer. Attach the backer board. The backerboard should completely cover the subfloor joints. Do a dry run and lay the backerboard down to fully cover the area you plan to tile.
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. Score the board with a utility knife then cut it using a jig saw with a carbide blade. The backer board comes in different sizes and you will pick the right one depending on the type of floor you are installing. The various brands of cement board such as hardiebacker durock denshield and wonderboard have become a standard tile backer material for nearly all ceramic porcelain and stone tiles for floor wall and countertop applications.
To achieve the ideal flat surface most contractors rely on the backer board cement backer board is a thin layer of concrete designed to be setting surface upon which tile can be installed. These convenient panels of cementitious board provide an instant flat hard surface that bonds with the thin set adhesives or mortars used to install tile. Cement board installation on floors. Keep fasteners between 3 8 and 3 4 from sheet edges and 2 in from sheet corners.
Tile backer boards like hardibacker board wonderboard permabase and durock cement backer board installs. Embed the cement board in latex modified thin set mortar the main reason for using thin set between the cement board and the subfloor isn t as much for bonding as it is for even void free cement board support throughout the floor. Cement board commonly sold under trade names such as durock hardiebacker and wonderboard is now the standard underlayment used for ceramic porcelain or stone tile laid with thinset mortar adhesive cement board is used for most floor tile and has all but replaced plywood and drywall backer materials for wall tile applications in wet areas like showers and tub surrounds. Precut and fit all the cement board and then lift all of the cement boards out.