Backer Board Over Sheet Vinyl

When tiling over existing vinyl flooring on a plywood subfloor it s not necessary remove the vinyl flooring as long as you apply a layer of cement backer board first to provide a stable surface for the tile.

Backer board over sheet vinyl.

Second the strength of wood boards isn t always consistent. 1 4 luan plywood is common for use underneath vinyl flooring. This is a 17 year old home. Installing over existing vinyl.

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. Most vinyl tile floors are thin enough to support the extra thickness of both the backer board and the tile. Then put down mortar with a 1 4 tool onto the ply floor boards. I have not seen anyone try to put vinyl over it.

If thickness is an issue however 1 4 inch thick backer board can be safely installed. Another option to backer board on wood floors is one of the new polyethylene membranes such as schluter ditra. Here is my concern. In my opinion vinyl tiles are out as well due to the fact that the thinset bond is only as good as the bond of the surface under it and i ve seen vinyl tiles especially peel and stick let go way too easily.

The biggest danger in doing a tile installation over vct or sheet vinyl flooring is not knowing what s under that flooring. However if you can t remove the old surface or otherwise decide to install over it lay a backer board with thin set over the old surface to serve as your new subfloor material. Cement backer board is for use under tile. To smooth the floor i covered screw heads and seams in the cement fiber board with thinset.

In very good condition there is one small squeek in the floor between the shower and the toilet that i want to eliminate with the extra cement board. First i was told to remove the existing linoleum. The floor is now smooth. The second problem with tiling over vinyl is the underlayments used for vinyl installation.

First changes in humidity make solid wood shrink swell and cup more than plywood. Even if you fasten a cbu or fiber cement underlayment well if you re fastening over vinyl that s been laid over a thin layer of particle board or luan plywood very common you still have a potential problem there. The tile used on this. Installing ceramic tile over vinyl or linoleum surfaces can be more complicated than expected and probably should be avoided whenever possible.

I was going to put down 1 4 hardiebacker board first. Here s how to go about tiling a floor over vinyl flooring. I would avoid doing this if i were you. The same is also true for sheet vinyl.