Screed ventilation

On Friday, the cement screed was installed here, but the heating up or functional heating of the underfloor heating is only planned from January.

We understand that we should and must ventilate during the heating process and also avoid drafts.

But do we already have to/should we ventilate now, even though no functional heating is taking place yet, to get rid of the moisture?

According to the screed installer, we are allowed to enter the screed or the house earliest from tomorrow. But the ventilation part slipped our mind in the heat of the moment?

But do we have to/should we already ventilate now when there is no heating in operation yet to get rid of the moisture?

Of course - whenever it is more humid inside the house than outside. It would be pointless for us right now, it's been raining every day for a week...

Well, the thing with the daily or constant rain is the same for us.

If wind window open. Even in winter. Draft dries.