I Ian May 7, 2014 #11 I used to use level it 1 and had the same hairline cracking over UFH, that's why I stopped using it and switched to weber floor flex. The fibres make a big difference to the structural integrity IMO.
I used to use level it 1 and had the same hairline cracking over UFH, that's why I stopped using it and switched to weber floor flex. The fibres make a big difference to the structural integrity IMO.