Tiling Question

Tiling over ufh with insulation boards.

Looking for a little advise if possible. Time as come to tile the kitchen floor. Main floor area is about 6m squared in a galley kitchen, with about 1100mm between the kick boards on the units. Floor is 50% quarry tile with a self leveling screed (original size of kitchen), extension is concrete again with screed.

I have bought a warm up kit and 6mm insulation boards to lay down, and the advise i have received already is to use a flexible adhesive to lay the boards, tape over the joints then apply the UFH kit and tile over.

All sounds straight forward enough but i have another area off the main floor plan which i do not want to be heated, a small part at the end of the units where the bin stands and an area under the stairs which we would like to keep cool for veg boxes etc.

Question is in the area where the UHF will not run, would it be best to make up the same height with 6mm ply or something? or just use a larger notch trowel to lose the gap in the adhesive for the tiles?

If laying ply to level the floor with the insulation boards what is the best way to fix?

When i used ply on the bathroom floor after getting advice on here i screwed it down with 150mm centres which was nice and easy into floorboards.

The area under the stairs is quarry tiled and screeded.

as always any advice much appreciated! The last project worked perfectly and is solid as a rock so would like to achieve a great result again.

Thanks in advance.

2 Answers

You can use 6mm cement backer board this can be stuck using the floor adhesive,I would not recommend 6mm ply.

Answered 27th Mar 2013

A. G. Fright Tiling Specialist

Member since 28 Feb 2011

you can use the same insulation boards as if there was ufh there, regards Terry.

Answered 27th Mar 2013

tm property services

Member since 9 Mar 2011

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