Cement Board Or Kerdi Floor

We are using a kerdi shower pan with a dry pack mortar extension of course covered and finished with kerdi membrane as well.

Cement board or kerdi floor. Schluter systems 0 5 in x 48 in x 96 in kerdi board polystyrene foam backer board. It will be water tested before tiling. Tiles can be installed directly on kerdi using the thin bed method. For pricing and availability.

I am tiling a large shower with a 10 foot ceiling. Kerdi features a modified polyethylene peva core with non woven polyproplyene on both sides to anchor the membrane in the thin set mortar. Waterproof sheet membrane such as schluter kerdi is applied to the cement board with thinset adhesive. Cement board and a sheet membrane.

If your bathroom floor is a concrete slab you could use kerdi. Also plywood is not listed as a suitable substrate for kerdi so even if you had a double wood subfloor built for tile schluter is not likely to approve. Kerdi was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Cement board is installed directly on the studs with no plastic sheeting behind it.

Im just wondering if i could kerdi over the dry pack and kerdi band the corners so the band would be up the walls two inches and then two coat red guard over my cement board walls down over. Kerdi is a waterproofing membrane so you can use it on any surface that is already suitable for tile. Cement board with kerdi membrane will be used for the shower walls all the way up above the shower head.