This is a mixture of cement fine grain sand and water that will adhere the new tile to the old.

Tile over vinyl flooring using cement board. Opt for a silicone sealant around the edge of the room rather than solid filler. When it comes to mortar latex or epoxy options are best for installing tile over tile. Use a notched trowel to apply thin set adhesive to the vinyl flooring. Position cement backer board.

Leave a 1 4 inch gap between the board and any adjacent walls. If you don t want to use cementboard install another layer of plywood before using an uncoupling membrane. Do not use an uncoupling membrane if the floor squeaks or has any give when you walk on it. Attach the backer board to the floor using self countersinking screws such as backer on screws available at the home depot.

If thickness is an issue however 1 4 inch thick backer board can be safely installed. Most vinyl tile floors are thin enough to support the extra thickness of both the backer board and the tile. The edges of the cement board should be no closer than 8 inches to the joints in the subflooring. My thought is possibly using cement board to build it up.

When tiling a wooden floor use a flexible tile adhesive and grout to reduce the risk of cracking. I have installed it over ceramic tile in the kitchen but had to raise the dining floor 1 4 of an inch. 2 install and nail backerboard over the vinyl then install tile. Also consider that doors cabinets and other hardware might need to be reworked or replaced with new ones to compensate for the higher floor.

Lay the first sheet of cement board onto the mortar so the rough side of the board is facing up. The plan is to install 12 12 ceramic tile. Lay the cement backer board on the floor while the thin set is still wet. 1 remove both layers of vinyl before tile install.

I used plywood but it is warping. I ve been told to. 3 spread a thin layer of concrete over the vinyl and install tile. Apply adhesive to floor.

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