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

Created on: 13 Apr 2020 13:22
L
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.
W
Wintersonne
29 Apr 2020 21:14
Are these black strips on the sides (I’m not sure what they are called)?
lin0r8729 Apr 2020 21:33
Wintersonne schrieb:

Are those black strips on the sides (I can’t remember what they’re called)?

Do you mean the compressible sealing tape?
Yes, they are.
B
Bookstar
29 Apr 2020 22:14
Then everything is fine! It can be carried out like this, no problem. Compriband and foam, including interior airtightness tape, ensure proper airtightness.
lin0r873 May 2020 09:11
Um... hello everyone.
I’ve been doing a lot of reading and would really like to build my own house.
EPDM membrane... does it need to be glued now or later, and who should do that?
It’s about the issue with driving rain. We had heavy rain recently, and there are still wooden wedges under the lift-and-slide door, so water is coming into the house when there is strong driving rain.
B
Bookstar
3 May 2020 11:56
You can start gluing it now; no one else will do it for you.
M
Mürker13
3 May 2020 12:20
I’m just wondering why the windows are flush with the interior masonry. Because that would actually create a thermal bridge, or am I mistaken? Or could it be due to these insulated Poroton bricks?