Cracked Travertine

[Ajax123]

why not just let the anhydrite dry then retile it using uncoupling as should have been used in the first place??

 

[Chalker]

That floor is soaking wet.
I would remove the travatine, let the floor dry . Then turn on the ufh and force dry.
Sand the surface and prime with acrylic primer. Then! Replace the floor with fake travatine porcelain tiles. You will get a decent match, as there are plenty out there. Travatine is never a good surface for wet underfloor heating.

 

[Dumbo]

Looks as though the wet UFH is not spaced correctly and too close to the surface.

I've seen that before nothing to with ufh being close to surface it's like air bubbles in the screed

 

[Time's Ran Out]

I've seen that before nothing to with ufh being close to surface it's like air bubbles in the screed

Not sure what you've said here!

 

[Ajax123]

Not sure what you've said here!

me either??