Hi,
So Im laying UFH (warm-up) in my bathnroom.
Ive covered joists with 18mm wbp ply which will be primed, then 2mm flexi adhesive,then 6mm insulation boards, then 2mm UFH, I am then going to self level over top - how much I'm not sure but would say 3mm.
Ill then tank then adhesive and then...