ᐅ Window reveal preparation before installation... skim coat?

Created on: 13 Apr 2020 13:22
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lin0r87
Hello everyone,
we are now about to install the windows… As far as I know, the window reveal must always be filled before installation. This has been done everywhere, but as a layperson, I’m not sure if this is correct..? My site manager tends to agree with everything and so does not have much expertise (a request for a replacement has been made).

From the picture, it can be seen that this was done only with cement mortar.
The exterior wall structure is: 1cm (0.4 inches) plaster (interior), 17.5cm (7 inches) Poroton brick, 16.0cm (6.3 inches) insulation, 1.5cm (0.6 inches) plaster (exterior).

Friends who have recently built their homes say that a smoothing coat must still be applied. Is that true, or would this work as it is (see picture) to ensure airtightness?

Innenansicht einer Baustelle: Backsteinmauer, Metallgerüst, Holzbauteile, Ziegelsteine auf dem Boden.
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Bookstar
15 Apr 2020 09:52
Out of 10 shell constructions here, 10 units had it.
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HarvSpec
15 Apr 2020 10:14
Using flexible adhesive or similar, this can be done quickly. Why is there such a fuss about it instead of just getting it done?
lin0r8715 Apr 2020 12:55
So... I asked again.
This can be done for an additional charge.
It amounts to approximately 400€
D
danixf
15 Apr 2020 13:09
I would never pay that in my life.
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guckuck2
15 Apr 2020 13:59
danixf schrieb:

I would never pay that in a million years.

Alternative?
a) do it yourself and break the warranty
b) construction stop, expert assessment, ...

There is actually a smooth layer, even if it looks untidy.
In my opinion, it should be continued on the outside as well, so the exterior membrane can be fully adhered.

Let's add this immediately to the "anti Poroton" list.
lin0r8715 Apr 2020 14:22
The warranty for the entire shell construction?

I was planning to go to the hardware store right away and buy ready-made flexible sealant.
Because I haven’t been sleeping well because of this ☝️.

I just spoke with the site manager again by phone, and he thinks it’s okay, saying it’s a smooth finish, but with the exception that it could be a bit cleaner.
I then said that it should be improved.
The shell construction inspection is scheduled for tomorrow, and this will be brought up again.