I have used it and its a huge improvement on the old stuff for working with. Need there tapes and corners for jointing two sheet together
Went to a presentation by Impey on Tuesday. Would Say there claim of it being an uncoupling membrane which can handle a 10mm deflection in the floor safely I couldn't believe.
Also said max 160w electric ufh but no max output for going over wet ufh, sound wrong to me.
We have a plumbers and builders merchant that sell it