How To Install Cement Backer Board On Floor

This guide will teach you how to properly lay cement backerboard and use mortar to secure and level your subfloor before installing tile.

How to install cement backer board on 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. This is a distinct advantage over plywood and drywall. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

Floor tiles should be installed over smooth flat surfaces. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. Embed the cement board and screw it to the underlayment with special 1 1 4 in. 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. Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water. Then spread thinset mortar with the flat side of a 1 4 in. Ceramic tile and natural stone tile installations require some type of a cement based surface for a long term.

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