I plan to install water-based underfloor heating with Marmoleum click flooring as follows:
Wooden beams
22mm grooved chipboard
Heat plates
Moisture barrier PE film
Lump paper
12mm floor chipboard
Marmoleum click
I think this follows the manufacturer's instructions. The problem (?) is that it is an intermediate floor, and I have a moisture-sealed bathroom below - I will therefore have a moisture barrier on both sides of the floor that could trap any moisture.
What should I do in this situation? Follow the manufacturer's instructions or skip the moisture barrier when laying the floor.
