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

Created on: 13 Apr 2020 13:22
L
lin0r87
lin0r8713 Apr 2020 13:22
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.
11ant13 Apr 2020 14:49
A smooth finish is applied to the joints of exposed or facing masonry. Windows are installed into the rough opening, which has not yet been plastered. Why would you want to apply a smooth filler there?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
lin0r8713 Apr 2020 14:58
11ant schrieb:

A smooth finish is applied to the joints of exposed or facing brickwork. Windows are installed within the rough opening, which has not yet been plastered. Why would you want to smooth-spackle anything there?

Regarding the sealing tape and adhesive foil.
D
dab_dab
13 Apr 2020 15:07
That's how I know it as well, and that's how the window installer wanted it. It was therefore carried out continuously by the shell builder and was also part of the company's standard scope of work.
11ant13 Apr 2020 15:10
lin0r87 schrieb:

Regarding the sealing tape and adhesive foil.
And you’re afraid that the joint interlocking will be too uneven?
Where exactly is the installation plane supposed to be?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
lin0r8713 Apr 2020 15:12
dab_dab schrieb:

That's how I know it as well, and that's what the window installer also wanted. It was installed accordingly all around by the shell builder – but this was also part of the standard scope of services for the company.

And that is now one of the questions I am asking myself.
The main question remains, though, whether it is actually necessary..?