Hi all,I'm fitting under floor heating (electric) in bathroom and have placed thermal boards down using flexible additive to adhesive. a couple of the boards have maybe 2mm movement in center of them. Will i get away with tiling on top of this? if not would it be ok to drill floor (concrete) and secure with screws? the screws would beprotected from heating element to ensure no contact is made.
Cheers
Weegie
