When Do You Uncouple?

[Flintstone]

Tiling straight onto floor boards is something I wouldn't dream of doing, I wouldn't decouple on them either. So, in the real world, when is decoupling an absolute must do for you?

 

[hmtiling]

Ufh gypsum stone

 

[Stef]

Ufh, screed & limestone tiles, advised them to Ditra but wouldn't listen.
Been to repair this twice, full floor needs ripped up & redone.

 

[One Day]

I hope you charged them well for the repairs? Especially as they didn't take your advice.

 

[Stef]

I hope you charged them well for the repairs? Especially as they didn't take your advice.

Made a fortune off of that job, don't work for the company now so it's nowt to do with me.
Told the guy the last time I spoke to him that the full place needs ripped up & redone.

 

[Flintstone]

Did you tile over all them cracks in the first place?

 

[Stef]

Did you tile over all them cracks in the first place?

They weren't there when we started the job, most of the floor had slc down on it as its one of the worst poured floors I have worked on.
Advised that they must use a decoupler but they wouldn't listen so it got tiled as is.
This company never learn, they still overboard with 6mm ply.

 

[Unused Account 1]

Ive only tiled 13 years so some of u guys doing it years ,ive only used ditra on afew jobs ,id say ive done 500 floors half stone never used anything and never had one problem,all the new spec ,changed over the years

 

[Unused Account 1]

Ive always plied wooden floors and just primed screeds

 

[Markltile]

Gypsum screed with wet underfloor heating with a 800x800mm porcelain tile, should it be uncoupled?

 

[Stef]

Gypsum screed with wet underfloor heating with a 800x800mm porcelain tile, should it be uncoupled?

It can but I wouldn't tbh.
I would use Anhyfix for that job & tile away after testing & sanding the screed.

 

[Markltile]

It can but I wouldn't tbh.
I would use Anhyfix for that job & tile away after testing & sanding the screed.

Was tested and sanded but do not have access to anhydride.

 

[Markltile]

Anhyfix

 

[Stef]

Anhyfix

Anhyfix from TileMaster, brilliant adhesive to use.
It's a gypsum compatible adhesive specifically designed for calcium sulphate screeds.

 

[Stef]

This is it.