Interior plaster on the exterior wall is not complete

What do you want to convey? A bit of botched workmanship is okay?

If I agreed with you, we would be talking about a slightly crooked wall or a window lintel set too low. However, airtightness can have quite a ripple effect that in the end can lead not only to financial but possibly even health consequences.
By the way, "zuschmeissen," especially with a wastewater pipe, also creates a wonderful sound bridge.

If you knowingly accept such a defect, that's your prerogative. But implying that anyone with a different opinion is a bit crazy (Haha!) and backing that up with "in the past" is simply ignorant and unnecessary.

What do you want to convey? A bit of shoddy work in construction is okay?

An exposed wastewater pipe in a living space (in this case probably the roof vent?) is already shoddy work times ten in a new build. Besides, the site manager’s suggestion with a foil is definitely the bigger botch job.

By the way, "covering up", especially with a wastewater pipe, additionally creates a wonderful sound bridge.

Hm? I didn’t say he should cover the whole pipe with 10 cm of plaster. He should simply apply some plaster behind the pipe and smooth everything out a bit with a trowel and a smaller spatula. There is no sound bridge there, especially since the pipe is always in a protective sleeve and thus decoupled from the plaster.

If you consciously accept such a defect, that’s your prerogative. But to imply that anyone with a different opinion is a bit crazy (hehe!) and to back that up with "in the past" is simply ignorant and unnecessary.

I’m just saying you shouldn’t always make a mountain out of a molehill. This is work for half an hour and the wall is closed. It doesn’t have to win any beauty awards since the pipe will be boxed in anyway. The alternative is to cut off the pipe, plaster it clean again, and then reconnect everything with a coupling. But I wouldn’t do that.

Back to the problem: If you have a turnkey build, then the site manager or the executing company should take care of it. But I wouldn’t agree to rubbish like stretching a foil over it. If not, see above.

I would agree with you if we were talking about a not quite plumb wall

Masons and plasterers are no magicians; you will rarely find a perfectly plumb wall.

The pipe should anyway be insulated and soundproofed. Afterwards, neatly plaster the wall with [Batz]. That is professional and not at all shoddy work, my dear Dr.

Besides, the site manager's proposal with a foil is definitely the bigger botch.

I didn't want to argue "pro foil," but merely "against throwing it on."
The cleanest solution would probably indeed be the dismantling. I wouldn't find that bad at the current stage of construction either; why do you see that critically?

I never said he should cover the whole pipe with 10cm of plaster

You wrote "just throw out the corner a bit ". In the context of the impossibility already mentioned by the OP to plaster all affected places afterwards (presumably some pipes lie flush against the masonry), the interpretation "small trowel and care" - at least for me - did not arise.
It seemed understood it the same way, as he subsequently echoed the same sentiment. Sorry if I misunderstood you roughly!

I'm just saying, you shouldn't always make a mountain out of a molehill

I basically agree with you there, but when it comes to airtightness, there are simply no "molehills" (see above).

You can think whatever you want about insulation and airtightness and of course have lengthy discussions about the pros and cons. But the fact is that we all have to build according to the current legal situation, and then it is also necessary to deal reasonably with the potential problems. Remarks like "insulation mania" or "what did they do 20 years ago" have no place there.

The pipe has to be wrapped and sound-isolated anyway. Afterwards, the wall should be nicely covered with plaster. That's professional and not botched work at all, my dear Dr.

Yep... and the exterior walls do have to be plastered from the inside at every spot. Unfortunately, that was forgotten here just like the protective sleeve on the pipe (see photo in the original post).

I wouldn't mind at the current construction progress either; why do you see it critically?

Well, it's just fiddly because the connections at the top and bottom are fixed.

just threw the corner a bit

Maybe I've just plastered too many walls in our house in the past few weeks. "Zuweisen" or "auswerfen" means doing base plaster for us (because you usually "throw" that onto the wall). The fine plaster then goes on top and is spread, which wouldn't be necessary for the corner in this case.

(presumably the pipes lie partly flush against the masonry)

That would be botched work again, especially if you're concerned about sound transmission.

Unfortunately it was forgotten here just as much as the protective sleeve on the pipe (see photo in the original post).

A white protective sleeve is pulled over the HT pipe, isn't it? It's definitely not a pure HT.

Hi

A protective sleeve is not installed there. The pipe is probably, for example, Conel Drain, a soundproof pipe. Distributed by the GC and GUT group.

Olli