Underfloor heating and then Tiling on top

[Shylo]

Im due to start tiling a Conservertary (4x4) 2moro and im gonna try and lay the tiles (Slate) on top on the underfloor heating.


Do i put a 10mm bed of Adhesive of top of the underfloor heating 1st???????? and i also put it on back of the tiles as well so it will be 20 mm thick


plz help asap

 

[grumpygrouter]

You will be better off skimming with SLC. Try using Mapei Fiberplan. This will give you a great surface to tile onto.

 

[CJ]

As above.

Always easier self levelling first.

Then use a flexi adhesive and grout.

If not.......you could use PTB flexi

 

[sWe]

I always cover UFH with SLC, for five reasons:

It protects the UFH when you put down the tiles.
It's easier to tile when the UFH is already covered.
You don't risk damaging the UFH when tiling.
The risk of damaging the UFH if replacing tiles, or retiling later on, is significatly smaller.
And finally, the heat is distributed better.

I'd recommend covering the UFH with no less than the thickness of the wires/tubes +10mm, preferably +20mm. Too little and you still risk damaing the UFH if/when replacing tiles or retiling, and the heat isn't distributed as well as it could be.

 

[Shylo]

I always cover UFH with SLC, for five reasons:

It protects the UFH when you put down the tiles.
It's easier to tile when the UFH is already covered.
You don't risk damaging the UFH when tiling.
The risk of damaging the UFH if replacing tiles, or retiling later on, is significatly smaller.
And finally, the heat is distributed better.

I'd recommend covering the UFH with no less than the thickness of the wires/tubes +10mm, preferably +20mm. Too little and you still risk damaing the UFH if/when replacing tiles or retiling, and the heat isn't distributed as well as it could be.

So wat you are sayin is ..........use the SLC then lay the UFH on top of it??????

 

[grumpygrouter]

So wat you are sayin is ..........use the SLC then lay the UFH on top of it??????

No, lay your heat mats and then skim over the top with the SLC. When dry, tile on top of your nice smooth surface.

 

[sWe]

Nope, the other way around. Lay the UFH first, then cover it with SLC. if the wires are 5mm thick, I'd recommend pouring atleast a total of 15mm, to get a 10mm cover.

 

[White Room]

Make sure the wires are not loose and are not going to lift when you pour the slc

 

[sWe]

Make sure the wires are not loose and are not going to lift when you pour the slc

Good catch.

 

[doug boardley]

You will be better off skimming with SLC. Try using Mapei Fiberplan. This will give you a great surface to tile onto.

should this only be used as part of a calorie controlled balanced diet?:grinningelf:
excellent advice from the upper echelons!