Too much moisture in the single-family house after screed installation? Risk of mold?

We are exactly at this point! Honestly: What is the easiest and best way to clean the ceilings? Constantly climbing the ladder and drying with towels... I spend 45 minutes on that every day :D Does anyone have tips/tricks for the "tropical screed ventilation time"? xD

Yes, air crosswise 3 times a day for 15 minutes and a proper construction dryer

Does it sometimes make sense at the current temperatures (light sunshine with about 10°C outside temperature) to leave the windows open for 3-4 hours around midday while the underfloor heating is running at full power?

Does it sometimes make sense with the current temperatures (light sunshine with about 10°C outside temperature) to leave the windows open for 3-4 hours around midday while the underfloor heating is running at full power?

Sure, although a lot of energy is lost, it really dries out the building!
Better to spend 100-200€ more on drying than to have moisture problems.

Sure, a lot of energy is lost but it really dries the building out! Better to spend 100-200€ more on drying than have problems with moisture

We see it exactly the same way - that's why today, with the great weather, we also left it open.

We will certainly do this more often after the lunch break in such good weather - it certainly contributes positively to the drying phase.

Thank you for your response!

You can quickly get 2 inexpensive hygrometers from Amazon. Then you can clearly see what is going on in the building and get a feel for it.

You can quickly get 2 inexpensive hygrometers on Amazon. Then you can clearly see what is going on inside the building and get a feel for it.

We have already been using them constantly since the beginning of the drying phase. You can clearly see that even after 10 minutes the humidity drops from 99% to 65%.

But as a layman in physics, I have no idea whether it makes sense to keep it open longer, since the necessary air exchange may have already taken place. However, I think it is certainly sensible in suitable weather.