What goes under DITRA membrane?
For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. 11 is used. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118.
How long before you can walk on DITRA?
Ditra-set only takes 25 to 30 minutes to dry. These advantages allow you to walk on the Ditra surface before tiling or even right after installing the Ditra. When installing ceramic and other stone tiles, Ditra is beneficial to use. It aids in a durable tile installation that will last for a long time.
Do you need underlayment with DITRA?
In order to protect the integrity of the tile assembly, an underlayment that performs multiple functions is required. Schluter®-DITRA is specifically designed to allow the installation of ceramic and stone tile over any even and load-bearing substrate.
Do I need DITRA over plywood?
Ditra should be installed on plywood subfloors using modified thinset mortar, not unmodified.
What Thinset do I use with Kerdi?
Schluter SET™, ALL-SET™, FAST-SET™ or an unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertightperformance of the system.
How soon can you tile after installing DITRA?
How long do I have to wait before I can install tile on the Schluter®-DITRA membrane? Once DITRA has been installed on the substrate, tile can be installed right away. No need to wait for the mortar to cure.
How long should Kerdi dry before tiling?
24 hours
Wait 24 hours after the membrane (i.e., Schluter®-KERDI-BAND and Schluter®-KERDI) installation is complete to allow for the final set of the mortar and to ensure waterproof performance of the assembly at seams and connections before water testing.
Can KERDI-BOARD be installed over plywood?
The sheet has limited gap-bridging capability, allowing it to be used over seams in drywall or plywood, as well as surface fissures in plywood. The Kerdi membrane system requires a 2” overlap at all seams; either with the membrane itself overlapping adjacent piece or with the use of Kerdi-Band tape.
How thick should subfloor be for DITRA?
Proper Floor Preparation However, the plywood subfloor must be thick enough to support the tile floor. This means: A minimum of 5/8” nominal plywood or OSB thickness installed over joists on 16” centers.