Polypipe Overlay Wet Ufh.

[widler]

Still not sure where the moisture would go marc.
Below is foil backed insulation, above is plastic barrier, wheres it going ?
You know i like a discussion but you have one half saying its gotta be dry and the other saying , ditra it and away you go
Im serious in saying this, i beleive none of them have the slightest idea how it works in EVERY environment, they test it and wing it

 

[Old Mod]

Moisture goes sideways Craig, the gap between fleece and plastic is the vapour barrier.

 

[Chalker]

Whatever way you look at this
To guarantee from failure. The floor needs to be dry.

 

[widler]

nope, i need science not 'it goes side ways'
It can go sideways when its tiled
The ditra is yet another barrier for the moisture to get past.
Come on, its friday

 

[J Sid]

I've been tiling over wet, week old new screeds for years using ditra as per there recommendations and never had any problems.

 

[J Sid]

Should add that this will improve the properties of the finished screed.
As nowadays screeds do not get covered during the first few weeks of curing as they should.

 

[widler]

So is it ok to tile a week old screed with green screed addy ?
which was part of the question , as 160m2 of ditra will possibly put him off price size
Or is green addy expensive

 

[J Sid]

Haven't used green adhesive for many year @wilder but would think if you are talking bal green screed that it will be a about half in price fixed, many a bit less
With Ditra you can tile as soon as you can walk on it and leave not boot marks as @3_fall said

 

[widler]

Ok, cheers julian , i think we have scared him off anyway by giving him options instead of 'screed tile and run'

 

[widler]

Ive been informed off my good friend @Andystiletiling that we start the job in december , doing thr bathrooms 1st, the floor can wait until new year