Sand cement Floor Screeds

[Mark S]

John,
As per most of the advice already given, unless the screed is a polymer-modified screed that has hydraulic binders in, then stick to a minimum of 28 days before even considering laying tiles on it.
There are numerous de-coupling mats available, but take advice from each manufacturer.
The BS recommendations do state 1mm per day ave. drying, this varies on each site condition.
hope this helps.
Mark S, Technical and Specification Manager, Gyvlon Ltd

 

[bugs183]

Ajax is your man for screed advise as said above!
If you're going to uncouple the floor i'd certainly use Ditra matting, we've been using for nearly 20 years and i'm as confident in it now as ever, i've used Dural on a few jobs as it was supplied, but i've got very little confidence in it, the Ditra feels and performs as a far superior product.