ᐅ Restricting access to the screed due to residual moisture

Created on: 4 May 2017 21:39
B
Barossi
B
Barossi
4 May 2017 21:39
Hello,

9 weeks ago, our heated screed was installed (without additives). A CM measurement about 10 days ago showed a residual moisture content of 2.5%, and today’s new measurement is 2.4%.

To stay on schedule, it would be possible to "seal" the screed.

What is your opinion on this?

Best regards, Barossi
EveundGerd5 May 2017 22:57
How tight is the schedule?

Tiles can be laid earlier, so you could, for example, start with them sooner and then finish the rest of the flooring at the end.
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Barossi
5 May 2017 23:00
Well, we would like to start moving in 5 weeks....
EveundGerd5 May 2017 23:08
How far along are you with the painting and decorating work?
Flooring is usually done last, so you still have some time.
In another thread, I believe I read that you need to reduce the residual moisture to 1.8.
If you're pressed for time in the end, you probably won’t have any other choice. But it’s not easy and must be done very thoroughly.

Have you tried using construction dryers? And plenty of ventilation!
Y
ypg
5 May 2017 23:36
I’m not familiar with sealing off the screed.
But my common sense forbids me from trying to block moisture in any way.
Ventilate, ventilate, ventilate... several times a day. Use a dehumidifier at full power.
Better to move in later; if necessary, bring furniture in on pallets, find a temporary apartment for a month or two, and calmly complete the finishing work (or have it done).
Moving in too early is no fun! There was a thread today about moisture in the house after moving in, caused either by incorrect measurements or numbers being manipulated. Take a look, I can’t link with Tapatalk.
It’s also possible to live on screed in secondary rooms for several months. We did that in one room, and it worked out well!

Best regards, Yvonne
B
Barossi
6 May 2017 06:40
It might be tight in the end. We have a working Zehnder 450 installed in the house. It can be commissioned next week. The painting work is almost finished (touch-ups here and there plus final coat), and the tiles are in place. We are just waiting for the screed to dry, then the flooring installers can start.

We decided not to cover the screed, preferring to wait instead!

But what is the most effective way to dry the screed?

Best regards, Barossi