First of all, hello to everyone :-)
I have already read a lot on this forum, but this is my first post because I haven’t found an answer to my current question.
Six days ago, I used screed concrete for the first time. Unfortunately, it didn’t turn out as level as I had hoped, and now I want to even it out with a self-leveling compound. The thickness of the screed is 7cm (2.8 inches). I have read that full drying takes at least 7 weeks (1 week per cm). Do I need to wait for this period, or can I already apply the leveling compound? Or will it seal the surface and prevent all moisture from escaping the concrete?
In the end, we want to lay tiles.
Thanks for your help.
Regards
Robinson
I have already read a lot on this forum, but this is my first post because I haven’t found an answer to my current question.
Six days ago, I used screed concrete for the first time. Unfortunately, it didn’t turn out as level as I had hoped, and now I want to even it out with a self-leveling compound. The thickness of the screed is 7cm (2.8 inches). I have read that full drying takes at least 7 weeks (1 week per cm). Do I need to wait for this period, or can I already apply the leveling compound? Or will it seal the surface and prevent all moisture from escaping the concrete?
In the end, we want to lay tiles.
Thanks for your help.
Regards
Robinson
M
MODERATOR12 Dec 2011 12:15For heated screed, the information from your installation company is correct; the readiness for covering of heated screeds is reached when, during the required CM measurement, screed moisture values of 1.8 CM % for cement screed and 0.3 CM % for calcium sulfate screed (anhydrite) are measured.
We have just gone through this ourselves. The drying time of the screed varies. There is a general rule of thumb, but it may not always be accurate. It depends on the weather and local conditions. Also, the type of screed used is an important factor.
In my opinion, it’s better to wait a bit longer than to risk major problems later on.
In my opinion, it’s better to wait a bit longer than to risk major problems later on.