Electric Underfloor Heating Mat - TilersForums.com

[Spare Tool]

No need for such a high W in kitchen as with conservatory.

I did not plan to use uncoupling mat is this necessary ? my plan was to use 6mm insulating mats.

I wouldn't fit any natural tile on ufh without at least a crack mat..

 

[Ttt1601]

I wouldn't fit any natural tile on ufh without at least a crack mat..

as above you at least fit a crack Matt, with that in mind I'd look at the viaro pro as it's a decoupler too may work out cheeper over all, plus a great system,

 

[Spare Tool]

as above you at least fit a crack Matt, with that in mind I'd look at the viaro pro as it's a decoupler too may work out cheeper over all, plus a great system,

It'd be interesting to see a price comparison..also working in the continued extra running costs for having no insulation between mat and screed.

 

[Flintstone]

You can lay it over insulation boards Andy

 

[Flintstone]

I know your wel sorted with the ufh store but generally speaking, I would also be interested to know the cost different. With vario pro for example, you lay it and then tile it with stone. With regular heat mat, you lay it, level it then fit an uncoupler, that's quite expensive and time consuming and labour intensive

 

[Spare Tool]

You can lay it over insulation boards Andy

Oh right, interested to see prices difference of normal way to vario then.

 

[Ttt1601]

Yea thts what I meant haven't actually crumched the numbers but I think in terms of cost to customer, there would really be no massive price difference either way, but I think vairo would work a bit cheaper, if you include labour and materials over all

 

[Alzak]

Can someone explain me purpose of this "uncoupling membrane" ?

My understanding was that on concrete you stick insulation boards with flexible adhesive and then heating mat covered with white flexible adhesive which you stick marble tiles on ?

Is this not correct process for tiling and underfloor heating ?

 

[Flintstone]

That is correct for porcelain tiles. With natural stone they are soft and aren't structurally stable as porcelain, as you will find out when a few probably fall in two!
The uncoupling is basically a layer which separates the tiles from the substrate, it alows some expansion and contraction in the floor without it transferring to the tile. There often made up of about 3 layers so can move independently

 

[Alzak]

Ah I see now I knew that stone tiles are not as hard as ceramic and that was the reason for using flexible tile adhesive so any movement in substrate would not transfer to tiles.


With this uncoupling membrane can you just lay this over heating mat or you need something between heating mat and membrane ? would membrane take the heat from heating mat without any issues ?