Tiling On Damp (ish!) Concrete Floor

[Italy]

Great, so now I have to figure out Italian smoke signals, translate it to english to find the answer?

You're not going to make this easy for anyone are you

compry what did you write (He was joke)

 

[SJPurdy]

The best solution is to take out the old floor completely. Then replace with a new floor incorporating insulation and DPC. If the full curing time before tiling is then a problem there are green screed adhesives which allow tiling before the full cure has taken place. If still wanting electric under-tile heating then I'd recommend still using 10mm insulation boards on top of the screed to give better efficiency.
The walls need insulating too otherwise you will always have a condensation problem. I'd start off by looking at e.g. the Celotex website to check out how the suggest to do it.

 

[J Sid]

Needs insulating though

Yes
A couple of post's later I recommend some