Preparation of masonry openings for window installation

  • Erstellt am 2023-03-23 09:07:49

Finch039

2023-03-23 09:07:49
  • #1
Hello everyone,

see pictures. The reveals of the window openings need to be prepared and smoothed once for installation so that the window fitter can also install everything nicely sealed. The holes are now already quite large in places ... unfortunately, a massive windowsill had to be torn out and we slightly enlarged the openings downwards.

Two questions about this: Which material is best suited to fill the holes? Simply apply plaster?

In the second picture, you can see the cavity wall. According to the window fitter, I should simply place a Styrofoam board here as a finish to the window. I would prepare an adhesive bed and stick it to the wall. Is there anything against this from your point of view?
 

gtgeorge79

2023-03-24 07:23:40
  • #2
The reveal is to be smoothed with blue adhesive.
 

Finch039

2023-03-24 09:47:31
  • #3
Thank you for the answer. :)

But can I just smear construction adhesive into the large cracks at the bottom right and bottom left like that, in that amount?
 
Oben