Ditra Over Plywood Floor

My bathroom floor needs some floor leveler well a lot of leveler.

Ditra over plywood floor.

Basically you can install ditra over. Over plywood or osb use modified thinset mortar. Ensure subfloor panels are level and properly fastened to the joists. Or plywood subfloor areas of application over any even and structurally sound double layer osb or plywood floor interior dry or wet areas limitations minimum 2 x 2 50 mm x 50 mm tile requirements maximum spacing of i joists or floor trusses.

Ditra and ditra xlseams and floor wall. How to install schluter ditra on plywood sub floor. It uncouples or releases the bond between plywood and tile mortar allowing each surface to move independently of each other. Can be installed on top of concrete plywood osb gypsum existing vinyl floors structural planks sub floors and radiant heated floors.

Schulter expressly notes that ditra replaces that second layer of plywood. Use unmodified thinset mortar learn about modified vs unmodified dryset thinset here fourteen months later everything looks good so far. All the specifics for ditra installation are in the handbook or on schluter s site. For installing tiles on ditra.

I put down 1 2 plywood all around in a staggered pattern being careful not to put screws in directly to the joists. Ditra xl allows for ceramic tile application over single layer plywood osb subfloors on joists spaced at 24 610 mm o c. Ditra is approved for use with ceramic porcelain and natural stone tile. For this project the ditra is being installed over radiant heating element embedded in self leveling mortar.

What do ya think. An uncoupling membrane does exactly what the name says. This house is over 70 years old and the 1 4 boards were in good condition. It is 6 x7 and the floor slopes a quarter inch over the 6 width.

But again this tutorial is just for wood subfloors. For installing the ditra membrane. The concern being if the floor shifts it may buckle in areas and affect the finished floor. The joists are rough cut 2 x 8s.

My question is can i install the ditra over the floor leveler or do i put down another layer of plywood 1 4 first. It can be installed over a variety of substrates including plywood osb existing vinyl structural planks and concrete. Over concrete or gypsum use unmodified thinset mortar.