I'm planning on installing underfloor heating in my 75mm sand cement screed. The architect stated A98 mesh (5mm wire on 200mm grid) in the screed because drains are running under the insulation. Could I use D49 instead (2.5mm wire on 100mm grid), which works better for pipe spacing. Perhaps run a second layer over the pipes, or will that cause problems crushing pipes whilst laying the screed?
Cheers!
Cheers!