Decoupling or not

[Ajax123]

Thanks for the replies. Its not normal hardiebacker but hardie floor which is designed to allow good thermal dissipation from wet ufh with no lateral movement...so they say. Customer has now got tiles and they are 333 x 333 porcelain rather than travertine. Still querying the decoupling belt and braces approach...I prefer to do jobs just the once!!!!

From a purely standards point of view uncoupling is only required for natural stone on heated screed. It can of course be useful on screeds which have become unsound e.g. Cracked sand cement etc.... Porcelain would not normally require uncoupling.

The level of thermal dissipation... Or diffusivity to use the tech term... Depends on a number of factors including primarily flow temperatures and intimacy of contact with the final surface.

 

[Perfect Tiling]

Thanks Ajax. Thats what I thought...good to get second opinion. Customer will be happy as less money and time on the job.