Planning a wet floor shower with underfloor heating.

[Giddyup]

Some advice please.. I am planning to upgrade my en-suite to have a wet floor shower area, we also want to have under floor heating, I have spoken to colleagues at work, as I am a Plumber the drainage, and under floor heating is easy for me, but using a decoupling membrane for the underfloor heating and a water proof membrane for the wet floor, do you need to use both, (would the waterproof membrane act as a decoupling membrane), if both are needed which is first, the general consensus is, decoupling membrane on floor, then latex, then waterproof membrane, then tiling. Would you agree, or is there a completely different way I no nothing about. Any help or advice would be appreciated.

 

[tictic]

a de-coupling membrane will do the job this is also a waterproof membrane..(ditra)...

What is the floor substrate..
What type off tile is it...

Dependant on floor substrate..

Thinset onto floor use a 6mm serator
Ditra ontop off this use your grout float to pat it down..
Elect ufh
Latex slc over ufh(use a plastic trowel or piece off wood to level off)..this way you won't damage wiring..
Tile adhesive
Tiles
Seal tiles(if needed)
Grout
Seal again(if needed)..

 

[tictic]

Just follow mfr instr...re:membrane fitting inst..

 

[Giddyup]

Thanks Tictic,

The underfloor heating is a wet system under the floor boarding which is marine ply, and the tile is a Porcellanosa Sahara Marma 435 x 435 floor tile. Am I right to understand that you are saying the Ditra matting decoupling membrane is water proof enough for a wet floor shower area, considering that the joints butt together or do you seal the joint with something? we were considering a tanking membrane by Impey on top of the Ditra after SLC would this be necessary.