Amtico Issue

Hope you can see these? first pic was of house before flooring was laid if you can see join which as at the right hand side it runs the whole length of room 20ft, The 2nd pic is of line appearing through tiles and 3rd is after they had repaired cracked screed with a epoxy resin but line showing through again.
They are now saying they cannot do anything until we get structural engineer to confirm subfloor has stopped moving.
Can you see join beforehand? Should they have laid over this?

 

From what I can see is that your crack is bigger than the usual crack you find.

Need better picture though. Cant your email that picture to another email but open it on your mobile then use your mobile to save that image then post it??

 

Hope these are better, 1st is house before completion but shows where the join starts which runs the whole length of room ( fitters saw this before Amtico laid)
2nd picture is after they had filled cracked screed with epoxy resin

 

Over the years I’ve used epoxy and sharp sand on cracks and that seamed to work. But if a crack keeps moving that won’t stop it.

 

Did they put the metal pins in to stitch the subfloors together?

 

Thats just rude mate

 

I did read that back and thought hmmm....but theres no bloody edit button

 

No they said they didn't do anything as the screed stopgap 1200 pro covers anything, we did meet the fitters at the property before fitting and asked if this join would be an issue and they said NO!
They prepared,primed and screeded 75sqm in 1 day, would this be correct. They are now saying they can't do anything until a structural engineer checks there is no movement in Subfloor

 

I think you know the answer already