I have a job coming up that is a chipboard floor with underfloor heating (water system). Karndean to go down. I plan to ply the floor with 6mm sp101, feather joints, prime and use Karndean universal addy. Any thoughts ? 60m2 on total
Run the heating full belt to see what the floor temp gets to ? An 8-10mm coat of flexy screed may be needed over the ply ?