Topic: Concrete subfloor and insulation

Gary,

Using a self-leveler over our system is absolutely fine. If you decide to go the Ditra route, again, no problems. The Ditra is going to act as an isolation membrane between the subfloor and the tile, so even if there were a compression issue with the cork, it wouldn’t translate through to the tile. I hope this information helps! Please contact me if there is anything else I can do for you.

-Seth