Ditra Over Plywood Floor

For this project the ditra is being installed over radiant heating element embedded in self leveling mortar.

Ditra over plywood floor. I put down 1 2 plywood all around in a staggered pattern being careful not to put screws in directly to the joists. How to install schluter ditra on plywood sub floor. It can be installed over a variety of substrates including plywood osb existing vinyl structural planks and concrete. It is 6 x7 and the floor slopes a quarter inch over the 6 width.

Can be installed on top of concrete plywood osb gypsum existing vinyl floors structural planks sub floors and radiant heated floors. For installing tiles on ditra. 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.

Basically you can install ditra over. An uncoupling membrane does exactly what the name says. Ditra and ditra xlseams and floor wall. Ditra xl allows for ceramic tile application over single layer plywood osb subfloors on joists spaced at 24 610 mm o c.

What do ya think. For installing the ditra membrane. The joists are rough cut 2 x 8s. A tight unmoving bond between mortar and subfloor causes cracking.

The subfloor is 5 8 t g plywood joists 2x12 on 12 centers. My question is can i install the ditra over the floor leveler or do i put down another layer of plywood 1 4 first. 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.

Ensure subfloor panels are level and properly fastened to the joists. It uncouples or releases the bond between plywood and tile mortar allowing each surface to move independently of each other. Over plywood or osb use modified thinset mortar. Over concrete or gypsum use unmodified thinset mortar.

All the specifics for ditra installation are in the handbook or on schluter s site. 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.