A
AndySE
We would greatly appreciate some advice please. We've just had new wet underfloor heating installed to an upstairs shower room. The floor barely seems to be heating up at all, despite the pipes from the boiler feeling nice and warm. We think a polypipe system was used by the plumber, as pictured. Our concern is whether the overlying floor covering was done correctly as the heat would appear to have to transmit through wooden floorboards (pictured), plywood/tile backer boards, adhesive and then tiles. The adhesive/tile thickness alone is around 3cm. Does this sound correct for an upstairs floor please? Please see images below.