A few questions before laying tiles - TilersForums.com

[freddyq]

Schuter state you can fix ditra mat to screed as soon as it is weight bearing .it also allows screed to breath

So now I'm confused! Although Not covering the screed with adhesive until it's fully dry does make sense to my layman mind, how is it meant to be able to breathe?

 

[Dumbo]

The is a cavity membrane that has vapour release channels . But you do need to get your uh fully commisioned first

 

[freddyq]

So I just called Schluter and spoke to technical support - I explained my screed is about 4 weeks dry and I want to put the tiles down in the next week or so. They told me as long as I use any C2 breathable adhesive it will allow moisture from the screed to continue to escape after tiling and then the ditra matting and it's vapour channels will do their job. So they say Ditra can be laid on a screed which isn't fully dry. Thoughts?

Or should I just put the flexbone 2Easy matting down...?

 

[Dumbo]

Thoughts are 2e has been around For years and is made by gutjahr . If it wasnt for bal running a succesfull marketing campaign this product woudnt of been mentioned

 

[freddyq]

Thoughts are 2e has been around For years and is made by gutjahr . If it wasnt for bal running a succesfull marketing campaign this product woudnt of been mentioned

So is it not a good product? Just backed by a big marketing campaign? You think I should go with Ditra and a breathable adhesive...?

 

[widler]

Flexbone is extremely expensive for what it is .
Ditra and tile , you will be fine, your ufh will help with the drying time , most tilers have tiled onto green screeds over the years with no problems .
Or spend a nice weeks holiday money on flexbone .
Which is basically ditra with some scrim stuck on it (it’s actually not at all like ditra, ditra would be much more expensive to manufacture than flex, but is a good few £ cheaper, ps there’s also cheaper matting than ditra as well )

 

[freddyq]

Flexbone is extremely expensive for what it is .
Ditra and tile , you will be fine, your ufh will help with the drying time , most tilers have tiled onto green screeds over the years with no problems .
Or spend a nice weeks holiday money on flexbone .
Which is basically ditra with some scrim stuck on it (it’s actually not at all like ditra, ditra would be much more expensive to manufacture than flex, but is a good few £ cheaper, ps there’s also cheaper matting than ditra as well )

Thanks for this - very helpful for a complete layman! What's the cheaper matting and I suppose it will have some downsides compared to ditra?

 

[Dumbo]

Dural ci matting, no downside

 

[freddyq]

Dural ci matting, no downside

Interesting - thanks I'll look into it. If there's no downside, why is it cheaper? Is it because Ditra is German-made so more of a premium on it?
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Turns out because of the quantity I need, I can get the Ditra matting for a lower price/m2 which means it'll cost the same as the best price I can find for the Dural CI matting. Assuming they are both the same I might as well go for Ditra I suppose...

The marketing material for the Dural matting does state quite clearly that tiles can be laid as soon as the screed is hard enough to take load (i.e. not fully dried) so I like that because that's one of my main concerns..

 

[freddyq]

Is there a recommended C2 breathable adhesive to fix the Ditra matting onto my screed?