Ditra Over Plywood Floor

What do ya think.

Ditra over plywood floor.

Ditra xl allows for ceramic tile application over single layer plywood osb subfloors on joists spaced at 24 610 mm o c. It is 6 x7 and the floor slopes a quarter inch over the 6 width. All the specifics for ditra installation are in the handbook or on schluter s site. The subfloor is 5 8 t g plywood joists 2x12 on 12 centers.

Ditra is approved for use with ceramic porcelain and natural stone tile. This house is over 70 years old and the 1 4 boards were in good condition. The concern being if the floor shifts it may buckle in areas and affect the finished floor. My bathroom floor needs some floor leveler well a lot of leveler.

How to install schluter ditra on plywood sub floor. An uncoupling membrane does exactly what the name says. For installing the ditra membrane. My question is can i install the ditra over the floor leveler or do i put down another layer of plywood 1 4 first.

Ensure subfloor panels are level and properly fastened to the joists. Ditra and ditra xlseams and floor wall. It uncouples or releases the bond between plywood and tile mortar allowing each surface to move independently of each other. The joists are rough cut 2 x 8s.

It is important to use a very good quality polymer modified thinset to install the ditra on the sub floor. I put down 1 2 plywood all around in a staggered pattern being careful not to put screws in directly to the joists. Schulter expressly notes that ditra replaces that second layer of plywood. Over concrete or gypsum use unmodified thinset mortar.

Can be installed on top of concrete plywood osb gypsum existing vinyl floors structural planks sub floors and radiant heated floors. Over plywood or osb use modified thinset mortar. It can be installed over a variety of substrates including plywood osb existing vinyl structural planks and concrete. For this project the ditra is being installed over radiant heating element embedded in self leveling mortar.

Use unmodified thinset mortar learn about modified vs unmodified dryset thinset here fourteen months later everything looks good so far. 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. But again this tutorial is just for wood subfloors.