Damp ish quarry tiles but want to lay new floor.

[Monteedon]

Hi all, I have read a few posts like this but the situations all differ slightly.

For me I have quarry tiles in my kitchen. They are not to bad, very solid and fairly even. Why do you want a new floor then I hear you cry. Well we have a detached house, and have had damp proving done in the walls. We then had the tiles professionally cleaned and since then, there is dampness in the floor. The quarry tiles have no dpc below them.

Ideally I want to avoid digging out. I can afford raising the floor (I.e. this will not affect the kitchen appliances and work tops etc). I would like to put down a wood effect laminate with underfloor heating, but wondered what is best for me to do

Any advice would be appreciated

 

[Richard C]

You need to get a damp sorted, either a membrane, waterproof SLC or insulated backerboards. Nothing laid over a floor with damp ingress including a heater element will last very long & you will have all sorts of nasty smelly bacterior growing under it.

Research UFH before you commit to it; electric UFH is not ideal, can be expensive to instal properly &, these days, can cost a fortune to run.