new screed tiling UFH wetroom

24 Dec 2014
Reaction score
United Kingdom
Hi made a mistake by laying normal screed 1:4 on wetroom floor (2.5m x 1.5m) with wet UFH pipes in screed. No fibres / mesh/ flexidry etc but waiting 3 mths for 75mm screed to dry is not an option.

I have perimeter expansion insulation in screed layer and can leave gap everywhere but in shower area.

What is risk if I slowly commision UFH and put decoupling sheet and then waterproof matting on top and then slate tiles?

I guess all that prevents tiles from cracking but what is risk with screed not curing and water being trapped under tiling?
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