Installing Cement Backer Board Over Vinyl

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.

Installing cement backer board over vinyl.

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. Never install new tiles over existing tiles or onto an unprotected wood or plywood floor. I have since decided to install vinyl sheet flooring. Cut cement backer board.

All the insider information on how to build and waterproof a. As long as the subfloor is 3 4 in. Check with wedi schluter laticrete goboard or whichever manufacturer to see how they want their product installed over a concrete subfloor. Cement board over sheet vinyl i can see the ill effects that can happen when tiles are set directly over non cushioned sheet vinyl and especially cushioned sheet vinyl.

Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water. This can be beneficial if you are wanting to insulate concrete from an electric floor heating system above it. Here is my concern. Vinyl flooring glued over 1 4 in.

Tongue and groove material screw the underlayment down right through the vinyl with 1 1 4 in. Drywall screws spaced every 6 in. 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 boards that some in sheets.

This guide will teach you how to properly lay cement backerboard and use mortar to secure and level your subfloor before installing tile. The other is foam backer board which is ok to install over concrete. Hi i expected to install tile on my bathroom floor so i installed cement fiber board. Anyone can enjoy the benefits of a cement board shower system if you follow these 3 easy steps.

Apply adhesive to floor. Most vinyl tile floors are thin enough to support the extra thickness of both the backer board and the tile. Use a notched trowel to apply thin set adhesive to the vinyl flooring. If thickness is an issue however 1 4 inch thick backer board can be safely installed.

I do not see the ill effects with installing cbu over sheet vinyl except is is going to take days for the thinset under the cbu to dehydrate. To smooth the floor i covered screw.