How To Install Ditra Mat On Plywood

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.

How to install ditra mat on plywood.

The problem is i only have enough room to install 1 4 ply over the existing subfloor. This will allow the ditra mat to lay flat. Step 4 embed the ditra mat into the thinset. Again i think this is a bad idea.

This is what creates the bond between the ditra mat and the plywood or o s b. Now for use of ditra over plywood subfloor it says on the package to use modified thinset to put the ditra down to the plywood and unmodified to put the tile down. 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. The floor is 16 oc with a joist span of approx 65 with about half of it resting on the foundation.

Will the thinset layers plywood ditra and ditra tile be 3 8 or less. Lay the ditra mat on the thinset that you just troweled onto the substrate. Install the ditra heat mat one day and install the electric heat wire a different day. I want to install 12 porcelain tile with ditra on our foyer.

The joists are 2x6. Subtracting the tile and ditra thickness leaves me with 3 8 left for thinset.