ᐅ Screed with drying accelerator

Created on: 15 May 2020 12:05
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neutri80
Hello dear forum,

I have a question.

Due to delays caused by the pandemic, our builder now wants to use a screed with a drying accelerator. This would supposedly be ready for the floor covering after 5 days.

Of course, we are happy that we don’t have to wait 6 weeks for the heating phase.

However, we are also wondering if this type of screed has any disadvantages. I did some research online but couldn’t really find much, and many reports are quite old.

That’s why I thought I’d ask what you think about it.

For floor coverings, glued hardwood flooring is planned for the ground floor, floating hardwood flooring on the upper floor, and tiles in the upper-floor bathroom. In the basement, all rooms will have tiles except for the office, where we are installing laminate.

I would really appreciate your opinions.

Regards,
Ivonne
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Daniel-Sp
17 May 2020 02:03
We paid about €1200 and were able to move in a month earlier. The saved monthly rent was higher.
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immermehr
23 Oct 2020 19:10
Daniel-Sp schrieb:

We paid about €1200 (approx. $1300) and were able to move in one month earlier. The saved monthly rent was higher.
How many square meters do you have? My screed installer wanted to charge an additional €6.50 per sqm (approx. $6.90 per sq ft). He says we can save 4 weeks. I asked him about the quality. He says it’s even better.
kati133724 Oct 2020 10:46
We also had screed with an accelerator, but we still followed the screed drying schedule. That took about 3-4 weeks. The floor coverings were only installed after that.

I would be cautious about installing the covering after just a few days. I'm not an expert, but no one really wants the hassle if it ends up coming back up later, right?
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Daniel-Sp
24 Oct 2020 11:17
That’s why the residual moisture is measured before installing the flooring.
For us, the heating protocol was significantly shorter than without the accelerator. We actually saved a month’s rent. I only remember that one month’s rent was higher than the additional cost for the accelerator. The residual moisture measurement was included in that extra cost. Without the accelerator, we would have had to pay for it separately. So, despite the extra cost, we saved money and were able to move in a week before school started.
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Strahleman
24 Oct 2020 17:17
immermehr schrieb:

He says that we can save 4 weeks.

What do you usually consider as the standard drying time until it’s ready for covering? The flat-rate surcharge doesn’t seem too expensive to me at first, if you reduce the time from 4 weeks to just a few days.
I
immermehr
28 Oct 2020 16:41
For me, it was cement screed with the standard 7-8 weeks. With an accelerator from estrich4 (dot)com, I shortened it to 3-4 weeks for an additional cost of about 1000€.

According to the datasheet of the accelerator (Quickup N), it is ready for covering after 5, 7, 13, and 20 days depending on the amount used.