Laying Limestone Tiles on Under-floor Heating? - TilersForums.com

[Unregistered]

We currently have concrete laid, which was done back in October, with under-floor heating within (wet system) We are hoping to start laying Limestone Tiles...20mm thick on 25 Mar, but the plumber is yet to get the heating commissioned. The forecast date for this is early next week, leaving just 1 week to heat the concrete and bring it up to temperature. We have around 4" of concrete to heat with the heating, and were inetrested if there was a good way to tile from 25 Mar, but which recognises that we only have 1 week from heating on to start tiling. Our tiler suggests at least 2 weeks to bring the heating up to temp, before we start tiling, so that we don't stress the concrete and get cracks.
What can we do?

 

[Concrete guy]

Wait, it's just not worth the hassle of a floor failure for the sake of a week or two.

Some will suggest decoupling membranes such as Ditra matting which original designed use for green screeds to allow commercial fast track fitting.

With the heating added to the mix, then I'd just want it running properly and a nice stable screed before anything was stuck to, particularly limestone.

 

[DHTiling]

Your tiler is right , the floor needs to be commissioned slowly , this is up in heat and then back down in heat , you cannot rush it.

 

[Ajax123]

We currently have concrete laid, which was done back in October, with under-floor heating within (wet system) We are hoping to start laying Limestone Tiles...20mm thick on 25 Mar, but the plumber is yet to get the heating commissioned. The forecast date for this is early next week, leaving just 1 week to heat the concrete and bring it up to temperature. We have around 4" of concrete to heat with the heating, and were inetrested if there was a good way to tile from 25 Mar, but which recognises that we only have 1 week from heating on to start tiling. Our tiler suggests at least 2 weeks to bring the heating up to temp, before we start tiling, so that we don't stress the concrete and get cracks.
What can we do?

No. Cannot be done. Well not correctly anyway. Takes about two weeks to do this correctly and given the prevailing weather conditions and likely indoor temperature to rush it might cause you problems with thermal shocking