how much depth have you got ?
the ideal scenario would be to take up underfloor heating lay some celotex insulation relay the heating mat and lay a minimum of 5omm floor sceerd over the top
or if you have not got the room and the underfloor heating is already laid on the concrete i have seen some jobs where they lay the tiles straight on top i think this deends on the type of floor heating system you have cheers john
You need to think very carefully about this.
If your UFH does not have any insulation under it.
And it should have at least four inches of polystyrene or similar.
Then your heating bills will go through the roof, as heat will go down as well as up.
You will just be throwing your money away.
Underfloor heating works best when it has four inches of insulation below it and a lightweight wood floor above.
Anything else and you will have a considerable time lag between turning the heating on and the floor feeling warm.
Another point. With a concrete floor it continues to emit heat long after you have turned it off.
The money you spent on heating that concrete block is then wasted.
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