Discuss Warmup insulation board in the Tiling on Underfloor Heating area at TilersForums. USA and UK Tiling Forum
I had come across that just recently on the warm-up site however I have already purchased 6mm boards on flea bay so was hoping I may get away with it somehow. I'm also laying warm-up underfloor heating.There is a thread here about this but I'm sure that it needs to be 10mm on floor boards.
6mm hardy backer would be ok.
Are you having Under floor heating? If so I would go for the insulation board if height allows
Phew sounds good to me!! No there is no bounce and it's only a 3 sqm floor. Just to clarify have you gone on to the floor boards with the 6mm or replaced with ply first?If there is no deflection (bounce) in the floor you should be just fine with 6mm in that situation. I have done countless installs that very way with no issues
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