After removing existing tile, grinding down parts of the floor, and using dry-pack and self-levelers to correct the final touches of the surface, they incorporated the DITRA uncoupling membrane.

DITRA-HEAT is an electric floor warming ... the system can be customized with floor heating cables for warm tile floors. Peel-and-stick membrane that features a pressure-sensitive adhesive ...

Uncoupling membranes create a buffer between the tile and the subfloor, allowing for slight movement without causing damage. Many, including DITRA and its alternatives, also offer waterproofing ...