Yes it does. You need to either use SLC to flatten your floor before ditra installation or use a larger trowel (higher than the clips or wires) to install the ditra, let it cure, then install your tile.

I have a quick question about this – I am about 90% sure of the answer but wanted to make sure I have things under control. I have several rooms of “Schluter,” experience under my belt, so I am not concerned about that facet of the project. I am concerned about applying the Schluter directly over the top of the warming wires.

Does the Schluter DITRA become “Bumpy,” when placing it on top of the rows of wire “Clips” that secure the wire to the floor and ensure their spacing? It seems as though you might be asking for a little “ridge” on the floor where these items are installed.

Rhett

If you are using suntouch in the shower it needs to be embedded into the top mud deck. I cut a large spiral groove in the top mud deck after it cures, insert the wire then skim over it with thinset.

You do not use ditra in the shower. If you are using a topical membrane such as kerdi or redgard just install it as you normally would over the top. If you are simply using a traditional method in your shower you would simply install the tile right over the top of the mud deck and embedded wire. *You need to wait at leas three days before turning on the heat once it is embedded! That article is on my list – it’s a long friggin’ list and I’m currently running around putting out flaming dogs and corralling midgets (don’t ask) OH! and that whole ‘work’ thing.