Drywall and vapor barrier done differently

That the barrier ends on the wooden floor and is glued there with an adhesive seam is completely okay and normal.

It would also have been sufficient to glue the foil to the floor. Especially how the foil should get to the floor below, normally the ceiling rests on the masonry.

Gluing the foil to the wooden battens in this ceiling construction does not guarantee airtightness at all. Warm indoor air can flow into the insulation through gaps behind the glued foil. Therefore, I clearly see a construction error here. I would never want such an execution. For example, the foil could have been led from above to the sole plate, and underneath the sole plate it could have been ensured that it is also airtight connected to the wall construction.

Bonding the foil to the wood battens in this ceiling construction does not guarantee airtightness at all. Warm indoor air can flow into the insulation through gaps behind the glued foil. Therefore, I clearly see a workmanship error here. I would definitely not want such an execution. For example, the foil could have been led from above to the foot purlin, and below the foot purlin it should have been ensured that it is also airtight connected to the wall construction.

That is exactly how it will be done now once the rest of the drywall is removed.

The attic space will get 2 radiators on each half of the house, which are connected to the heat pump and have fans. However, since the attic is only planned as a reserve or initially as a storage room, it will not be heated for the time being. Question: Vapor barrier between attic and upper floor, yes or no?

Reminder: it was about thread 31945 (GU stops work despite overpayment)

I know which thread or threads I have avoided. I belong to the

hardly anyone

... because I’m already reading it here again:

Woulda, coulda, shoulda........

That was about 8 months ago now

Somehow it doesn’t help! And so I will also stay away from this thread!

I revoke. With a ceiling like that, where nothing is closed off from below, it doesn't work that way.

In the basement, the concrete ceilings are currently being plastered. However, they should have been primed beforehand. Somehow this was overlooked (due to communication problems with the contractor), so now plastering was done without priming. Although I was assured multiple times that priming had been done. The annoying thing is that the canisters are still standing exactly where they were before, even with 180 sqm of ceiling area. Should we now apply primer retrospectively, or sand and prime, or leave it as it is?

Pull the emergency cord, throw everyone out, then find a German specialist company with a big name and location in your area.