Ditra Mat On Concrete Slab

Don t install tile the same day over the ditra heat mat schluter says this is ok.

Ditra mat on concrete slab.

Ditra heat tb has additional insulation for going over concrete floors. Ditra is good for new concrete. We recommend using schluter ditra heat duo uncoupling membrane. The schluter ditra uncoupling membrane is specifically designed to allow the installation of ceramic and stone tile over any even and load bearing substrate.

Again i think this is a bad idea. Ditra is essentially a molded plastic sheet with fleece backing. Megabond from lowes or kerabond are good un modified thin sets. Its primary function is to help neutralize stresses in movement between the substrate in my case the subfloor but it can also work with osb or plywood and the tile.

Ditra is 1 8 3 mm thick which minimizes tile assembly thickness and reduces transitions to lower surface coverings e g carpet engineered wood and vinyl. This will reduce heat loss to the concrete substrate and improve the floor warming response time. A seasoned floor that never sees moisture you could skip the ditra.