How To Install Cement Backer Board On Floor

Ceramic tile and natural stone tile installations require some type of a cement based surface for a long term.

How to install cement backer board on floor.

How to install a cement backer board over a plywood subfloor in the bathroom. 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. Cement board screws spaced every 4 in. Notched trowel and use the notched edge to comb the mortar.

The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet. Embed the cement board and screw it to the underlayment with special 1 1 4 in. Never install new tiles over existing tiles or onto an unprotected wood or plywood floor. Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water.

Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. 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. Then spread thinset mortar with the flat side of a 1 4 in.

The backer board comes in different sizes and you will pick the right one depending on the type of floor you are installing. This guide will teach you how to properly lay cement backerboard and use mortar to secure and level your subfloor before installing tile.