Ditra Membrane Over Concrete

Installing tile directly on concrete ceramic and porcelain tile are so frequently installed at or above grade level on a cement board underlayment or directly on plywood that it almost seems novel to install tile directly on concrete.

Ditra membrane over concrete.

In addition they provide a stable substrate for tile installation on oily asphalt or extremely smooth surfaces for which adhesion is a problem. The ditra heat duo has fleece liner that results in a 70 faster floor warming response time. Legend essential significant helpful uncoupling. To set ditra over concrete or gypsum schluter systems recommends an unmodified thin set mortar meeting the requirements of ansi a118 1.

Schluter ditra and redgard uncoupling mat are two popular brands of tiling membranes that lessen the chance of concrete events becoming tile events. For example to set ditra over plywood or osb a modified thin set mortar meeting the requirements of ansi a118 11 is used. I would prefer a crack isolation mat like noble ts. The integration of ditra s uncoupling waterproofing load distribution and vapor management functions makes consistent results viable.

Depends on the condition of the slab and if it has any issues. If it s newer and has cracks i wouldn t use ditra. 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. The schluter ditra heat duo membrane is 5 16 8 mm thick compared to ditra heat at 1 4 5 5 mm thick and has 4 benefits.

The best part is that it solved my issue of heat loss through the cold concrete floor. The type of thin set mortar used to install ditra depends on the substrate material. If it damp ditra would be my choice. Schluter ditra is specifically designed to allow the installation of ceramic and stone tile over any even and load bearing substrate.

Please consult the schluter ditra installation handbook before beginning your tile project to confirm the proper materials selection.