Ditra Uneven Floor

Yes schluter ditra or ditra xl can be installed over vinyl.

Ditra uneven floor.

There are various types of tile underlayment but all serve to smooth out uneven spots in a subfloor and create an unbending layer that prevents the floor from flexing underfoot. The subfloor is 3 4 x 7 tongue and groove plank with some knots set on the diagonal. The garage floor was very uneven so i tiled it because most of the big project was problem to work on this uneven floor when it comes welding and all. Ditra is good for new concrete.

The subfloor must be free of moisture damage including rot and sponginess and must be securely fastened to the joists and squeak free don t lay tiles on a concrete slab with cracks that appear to be spreading or irregularities that prevent you from leveling it. First time floor diy i would like to install porcelain stone or thin brick on my 1955 kitchen and hall floor. I plan to use the thinner ditra uncoupling membrane. Before laying tile or installing a tile underlayment like schluter ditra it s important to check the subfloor to ensure a flat even surface at its worst a very uneven floor will result in broken or loose tiles and cracked grout joints.

Ditra xl is 5 16 7 mm thick to create an even transition between typical 5 16 7 mm thick tile and 3 4 19 mm thick hardwood flooring. Megabond from lowes or kerabond are good un modified thin sets. It s completely waterproof and it allows the subfloor and tile layer to move independently. Cushioned vinyl is unacceptable.

Multiple layers of vinyl is unacceptable. Some limitations include the following. A seasoned floor that never sees moisture you could skip the ditra. Can schluter ditra and schluter ditra xl be installed over vinyl flooring.

Floor joists are 1 75 x 9 16 oc longest support span is about 12 feet. Tile installers usually use cementboard as a tile underlayment over a standard plywood subfloor but as home flooring pros advises there are situations for which an uncoupling membrane is a better choice.