How To Install Ditra Mat On Plywood

Lay the ditra mat on the thinset that you just troweled onto the substrate.

How to install ditra mat on plywood.

The problem is i only have enough room to install 1 4 ply over the existing subfloor. Ditra has a fleece on the back side that becomes embeded into the thinset. I think i m going to be cutting it close but will be okay assuming that thinset raked with a 1 4 square notch trowel will wind up compressing to about 1 8 after setting the tile and a 1 4 v. This will allow the ditra mat to lay flat.

This is what creates the bond between the ditra mat and the plywood or o s b. For use over concrete floors it says to put the ditra down with unmodified thinset then used unmodified to put the tile down as well. Time to install the mat i grabbed the schluter ditra xl and carried it upstairs this was much easier than carrying up the 20 or so bags of concrete it would have taken for the other option the 175 sq ft roll of schluter pad we had weighed about 10 pounds. The joists are 2x6.

As mentioned when you have to pick a tile up and re install it you will have to do this more than once the suction of the tile can pull up the ditra mat causing it to break the bond to the plywood. Subtracting the tile and ditra thickness leaves me with 3 8 left for thinset. Again i think this is a bad idea. Step 4 embed the ditra mat into the thinset.

Will the thinset layers plywood ditra and ditra tile be 3 8 or less. Install the ditra heat mat one day and install the electric heat wire a different day.