ᐅ Window Replacement Following RAL Installation Standards

Created on: 24 Jun 2020 20:41
A
andi2333
Hello, currently I am having the windows replaced in our single-family house (built in 1980). The installation is being done according to “RAL installation” standards. Old wooden windows are removed and new plastic (PVC) windows are installed. I have two questions – also considering that this is my first time witnessing a window replacement “live” and I don’t fully trust the craftsmen.

1. After two windows have been replaced, I notice that the new windows do not line up flush with the interior window sill. There is a gap of about 0.5 – 1 cm (0.2 – 0.4 inches). Is this “normal” and can this simply be sealed with silicone or acrylic?

2. The gap between the masonry and the window is filled with PU foam. Then trim pieces are glued onto the cut foam as a finish. Does this procedure comply with RAL installation? I tried to research online and usually only see references to vapor-permeable or vapor-tight sealing tapes for the finishing seal...

Thank you very much!
X
X_SH5_X
21 Sep 2020 15:13
Isn't it common to have cover strips since the gap between the window and the wall is filled with PU foam? Isn't that completely normal? Since PU foam is sprayed between the window and the wall, there must be a small gap, otherwise it wouldn't be possible, right?! Or am I mistaken?
11ant21 Sep 2020 15:25
X_SH5_X schrieb:

Aren’t these cover strips always installed since the space between window and wall is filled with PU foam?
In renovations without renewing the interior plaster, yes.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/