Morning all
Got a question about screed drying times...seems to be confusion as to how long to wait until we can put the UFH on.
It's a normal sand/cement screed, about 18sqm - about 95mm thick
The builder says 1inch per week. The heating engineer says 1mm per day.
So one is saying [roughly] 4 weeks, the other 13 weeks. A big difference! We've had about 7 weeks so far.
There seems to be two British Standards going on; the heating engineer appears to be following BS 8204-1, and the builder BS 1264-4:2001 (which rather says 21 days, and most screed should be 75mm thick. So the inch per week).
We have a couple of rads in the kitchen as well - obviously their pipes go under the screed - they've been on - to counter the cold, and there's no cracking from them.
Don't really mind either way, but would prefer it on as I think it's going to get colder. Also want to test it fully before it gets too hot in spring!
We've a flooring man coming around on thursday to check - would he be able to give us a definitive answer with a hygrometer do you think?
So - basically - what's the answer? One inch per week, or 1 mm per day? Or the longer the better? Or something else?
ta
Got a question about screed drying times...seems to be confusion as to how long to wait until we can put the UFH on.
It's a normal sand/cement screed, about 18sqm - about 95mm thick
The builder says 1inch per week. The heating engineer says 1mm per day.
So one is saying [roughly] 4 weeks, the other 13 weeks. A big difference! We've had about 7 weeks so far.
There seems to be two British Standards going on; the heating engineer appears to be following BS 8204-1, and the builder BS 1264-4:2001 (which rather says 21 days, and most screed should be 75mm thick. So the inch per week).
We have a couple of rads in the kitchen as well - obviously their pipes go under the screed - they've been on - to counter the cold, and there's no cracking from them.
Don't really mind either way, but would prefer it on as I think it's going to get colder. Also want to test it fully before it gets too hot in spring!
We've a flooring man coming around on thursday to check - would he be able to give us a definitive answer with a hygrometer do you think?
So - basically - what's the answer? One inch per week, or 1 mm per day? Or the longer the better? Or something else?
ta