ᐅ Maximum moisture level allowed for tile installation

Created on: 17 Jan 2018 09:27
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kaho674
kaho67417 Jan 2018 09:27
Hello,
we have a small workshop integrated into the garage. The room is insulated but has no heating. It is drying out slowly on its own. We ventilate constantly. Naturally, it takes a very long time without any heat. This week Lidl had moisture meters. It shows me values in %, whatever that is supposed to mean. The screed is now between 3% and 6%. Does anyone have an idea what these values indicate? When can I start thinking about tiling?

Should the room be heated up for a while? I was thinking about 1 week at 20°C (68°F). Would that be enough? What do you think?
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Baumfachmann
17 Jan 2018 22:34
Hello, not more than 3% moisture before installation, heat for about a week beforehand, often the edges are still a bit damp. Ideally 2% and recommended if it is not too cold during tiling and a few days afterwards, 20°C (68°F) would be fine.
kaho67418 Jan 2018 08:01
Great, thanks!
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Bieber0815
18 Jan 2018 08:11
I am surprised that you mention humidity limits without specifying the measurement method.
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kkk272729
18 Jan 2018 10:18
Enter "cm measurement tiles" in Google.

The first result from Albrecht Services provides all the answers.
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Payday
22 Jan 2018 06:51
Wasn't it around 1.8% or so?!

In any case, it was very, very little, and the measurement is not taken from the surface but deeper underneath. So you partially damage the floor. That’s why there is a “marker” embedded somewhere where there is no underfloor heating.

If you install the floor covering too early, it will warp, and you might have to remove everything again.