Tiles de-bonding from new house

[Tileadvice]

Hi there.

Has any seen an issue with tiles that de_bonded or became loose?
We moved into a new build. Floor base was not powerfloated (which is better for tiling). Tiler used Larsen Primer, & Larsen flexible rapid adhesive to tile ground floor with 75x75 porcelain tiles. 6weeks later we could hear a hollow sound..from every tile. We called the builder and tiler, they removed a tile to see underneath. The adhesive was stuck to the tile, and primer to the adhesive so none to the ground...is this normal? Also there was a strong Solvent smell when we lifted the tile! Has anyone seen this? The tiler seem suprised. Would the Primer used have contributed to the issue...can it be contaminated or "go-off"??

We are now in a situation where the builder and tiler think they are not at fault, either do Larsens. But one thing for certain it is not me!

Can anyone help??

 

[Dumbo]

Have you had a rep out from Larsen to look at the job . Do you know what primer was used . Are you saying the primer has come up with the tile if so is there dust or cement stuck to the primer .

 

[Old Mod]

Does it have ufh, and do you know exactly what type of screed you have?
It’s unlikely to be the adhesive used.

 

[Tileadvice]

Have you had a rep out from Larsen to look at the job . Do you know what primer was used . Are you saying the primer has come up with the tile if so is there dust or cement stuck to the primer .

Yes we had the Larsen Rep out when we took up the tile. They were also concerned about the Solvent smell and said that their primer&adhesive should not smell Solvent. Larsen also to a sample but their testing is really a Look & Feel test, not worth much to be honest. It was Acrylic Primer used. When they took up the tile they could see the primer stuck to the adhesive, it was a clean de-bond with no dust or cement.

I am wondering if the primer was Off, would it be the Solvent smell?

 

[Tileadvice]

Does it have ufh, and do you know exactly what type of screed you have?
It’s unlikely to be the adhesive used.

Yes we have UFH with 10mm screed

 

[Old Mod]

Yes we have UFH with 10mm screed

10mm screed? Unlikely.

Is your ufh wet or electric?
Anhydride screeds are 40-45mm min with ufh.
And sand and cement screeds with ufh should be 60ish
Are sure, firstly on depth, and secondly is it the actual screed you’re talking about or is it a latex covering over the screed.

 

[Chalker]

10mm screed? Unlikely.

Is your ufh wet or electric?
Anhydride screeds are 40-45mm min with ufh.
And sand and cement screeds with ufh should be 60ish
Are sure, firstly on depth, and secondly is it the actual screed you’re talking about or is it a latex covering over the screed.

10mm could be nu-heat lopro.
If it is, it’s covered in fibre reinforced self levelling.

 

[Old Mod]

10mm could be nu-heat lopro.
If it is, it’s covered in fibre reinforced self levelling.

Cheers Paul. 🙂
Yet another ufh system added to the list. 😳
Looks ok tho, although I’m a bit dubious about their statement about finished floor being perfectly flat. 😀

 

[Tileadvice]

I see on the report it is a C28/35 screed with Enduro HPP45 macro reinforement fibres. The tile removed was over the expansion joint which was 10mm depth. Would that be screed depth?

 

[Tileadvice]

Also wet UFH