Tiling a floating floor

[mickey blu]

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1. 
   mickey bluActive Member
   Hi everyone need some advise please !
   I have been asked to tile a floating floor ,solid concrete floor then polystyrene sheets with ply face .
   The customer wants underfloor heating fitted as well .
   Tiles will be a porcelain 600x600.
   1.Hardi backer floor
   2. lay underfloor heating
   3.latex floor
   4.Would you use ditra matting as well ?
   Any suggestions welcome thanks in advance .

 

[Flintstone]

Hello.
Myself, and others on here wouldn’t tile a floating floor. I have in the past without problem but it’s simply not worth the risk, for me. Only you can assess how much deflection there is in the floor, some are more so than others. Hardie make a really thick structural
Board, maybe look towards that

 

[Rookery]

Not a chance, too risky.

 

[One Day]

The same old problem - not lateral movement, Ditra will cope with that in extremes.
Your problem is down the line when the polystyrene under the floor compresses and you get vertical movement.
I wouldn't tackle it. It's one for the Karndean / Amtico boys.

 

[hmtiling]

I've done one with blanke permat and loads of fibre slc. The client was aware of risks and 2 years later it's still fine.
Wouldn't do it in my house though

 

[mickey blu]

Thank you for your input fellas much appreciated