Ditra Over Plywood Floor

How to install schluter ditra on plywood sub floor.

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 important to use a very good quality polymer modified thinset to install the ditra on the sub floor. What do ya think. An uncoupling membrane does exactly what the name says.

Ensure subfloor panels are level and properly fastened to the joists. Can be installed on top of concrete plywood osb gypsum existing vinyl floors structural planks sub floors and radiant heated floors. The subfloor is 5 8 t g plywood joists 2x12 on 12 centers. My bathroom floor needs some floor leveler well a lot of leveler.

This house is over 70 years old and the 1 4 boards were in good condition. It can be installed over a variety of substrates including plywood osb existing vinyl structural planks and concrete. Basically you can install ditra over. The concern being if the floor shifts it may buckle in areas and affect the finished floor.

But again this tutorial is just for wood subfloors. Over concrete or gypsum use unmodified thinset mortar. Over plywood or osb use modified thinset mortar. 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. It is 6 x7 and the floor slopes a quarter inch over the 6 width. 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. Ditra is approved for use with ceramic porcelain and natural stone tile. My question is can i install the ditra over the floor leveler or do i put down another layer of plywood 1 4 first. A tight unmoving bond between mortar and subfloor causes cracking.

Schulter expressly notes that ditra replaces that second layer of plywood. The joists are rough cut 2 x 8s. For this project the ditra is being installed over radiant heating element embedded in self leveling mortar.