Insulation wooden beam ceiling

...How do I build a house together with the help of a forum?

Are only idiots at work here ...
Big mouth and writing stupid stuff. Just shut up and pull together ... then it will work out.
But be that as it may.... let's leave it at that

Are only show-offs at work here ...
Big talk and writing stupid stuff. Just shut up for once and pull together ... then it will work out.
But anyway....let’s leave it at that

With that tone, of course no one wants to anymore... even if they could

Hello,

Are there only "Sprallos" at work here...
Having a big mouth and writing stupid stuff. Just keep your mouth shut and pull your weight... then it will work.
But be that as it may... let's leave it at that

I would recommend you to think carefully about your words before your next post; I don't find this kind of behavior funny at all!

The user you called "Sprallos" – whatever that is supposed to mean, certainly not meant kindly – is, in one case, a TGA planner and in the other, a qualified architect. The stupid-mouthed person spouting nonsense you see is therefore on your screen.

Rhenish greetings

Hello, I have a question about a wooden beam ceiling regarding a vapor barrier. I have a new wooden beam ceiling with the following structure: Upper floor living space - cement screed - screed foil - impact sound insulation boards - PE foil - OSB board 25mm Then the wooden beams. Ground floor living area - 180mm mineral wool between the rafters - fermacell boards 10mm Now the question: do I need a vapor barrier above the fermacell board? I would appreciate any answers. Thanks, regards Nils