I've bought electrical heating mat kit to put in the new kitchen, but although a layer of the cement floor has been taken out - it is still not deep enough to put the thermal boards and mats and tiling on - or the flooring in the kitchen will be higher then everywhere else and being an open plan - this is not going to look good.. Does anyone know if there is any substitute for the Thermal boards? Something you can just roll out.. Or pour in.. Because I guess there is very little point laying electrical thermal mats directly on the concrete floor - all the heat will go right into the ground.. Although it does say in the product description "produced with PTFE insulated heating elements and a 100% earth screen" - I have no idea what that means.. Thanks! Oh, here is the link of what I mean, just in case I am not making myself clear:Thermal boards: http://www.amazon.co.uk/Underfloor-h...094682&sr=1-13 thermal mat kit: http://www.amazon.co.uk/Electric-und...656675&sr=8-34

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