Floor Fail

[White Room]

in addition to all the above factors (not solid bedded being clear in the photo) the joints appear to be a bit narrow (are they minimum 3mm?).
Where the adhesive has made contact with the base of the tile it seems to have stuck to the red pen but not the tile so dusty tiles could be another factor.

They looked like 2mm...

 

[LM]

Severe dehydration of adhesive, ufh probably not turned off?
Adhesive seems to have been dot and dabbed also.
Deffinetly no slc and if so wrong type for installation, there's no way that the correct slc would have separated from the cables like that, not a chance!
And obviously all of above, no back buttering etc.
It looks like a diy'ers first attempt!

 

[White Room]

Severe dehydration of adhesive, ufh probably not turned off?
Adhesive seems to have been dot and dabbed also.
Deffinetly no slc and if so wrong type for installation, there's no way that the correct slc would have separated from the cables like that, not a chance!
And obviously all of above, no back buttering etc.
It looks like a diy'ers first attempt!

Ufh was never turned allegedly as it was only laid in March.

 

[White Room]

Went back to the supplier concerning the ufh and asked them what they supplied as in wattage, they only sold 200w at the time and was on top of ply.