Has impact sound insulation and screed already been installed? Then you also have moisture in the insulation?
With a dehumidifier, it should be fine within a few days.
If possible, dry the damp wall from the back with a heater. Do not place any furniture in front of it.
The dehumidifier works wonders.Look at it positively, then the rest of the damp new building will also be properly dried out right away, with some luck entirely at the expense of the insurance.
Good question whether it is better to run the ventilation system or turn it off during professional building drying. Afterwards, the system is of course worth its weight in gold, especially in this situation. And spend the time until Christmas indoors more comfortably in a T-shirt (or right away in a bikini) temperature-wise
How is the exterior wall structure?
