Material mix without basement, plinth, moisture-resistant fabric insulation

Then everything is clear now!

I hope that's really the case. When calculating the wall (it's a homepage that allows you to calculate the U-value and moisture - but the link must not be mentioned here without penalty :cool), however, the dew point now shifts to the wall center. So condensation forms between the wooden stud and the insulation (see pictures for comparison). I think this is due to the waterproof XPS insulation.



So I'm not quite sure if this is the optimal solution or if the condensation is only theoretical or not serious; I will discuss it with my planner and possibly report back here (it might be of interest to someone again).

Thanks for now!!

Best regards, Mike

You really don't need to overdo it! The gypsum core can absorb quite a bit of moisture before your insulation starts to mold. Since you have this insight, you are aware of the importance of sufficient room ventilation. Gypsum board 12.5(hydrophobic/green) would be another option!