Tiling Advice Wanted - Over Wet UFH

[swampie]

Oh and as for Anhydrite, I have never heard of it.

I do hope I get the kitchen and hall warm enough now you've said that. It'd be a poor doo if I end upo needing a radiator.

 

[swampie]

So from here on in:-

* lift the ply
* install 6mm backer board on using 6mm notched trowel bed of C2 S1 adhesive (Hardie says 6mm)
* install Ditra 25 on 3mm notched trowel of C2 S1 adhesive (Ditra says 3mm)

*What bed is best thin bed for the 600x600x15mm Marble tiles? (Ditra says thin bed but which?)