ᐅ Shell Construction – Reducing Window Size

Created on: 8 Mar 2012 14:00
T
Tatze
T
Tatze
8 Mar 2012 14:00
Hello,

I was told today that it is a common method to use Ytong blocks to reduce the size of window openings during the shell construction phase.
In this specific case, the windows were built with a width of 1.22 meters (4 feet), but they are supposed to be only 1.10 meters (3 feet 7 inches) wide.
The masonry is made of Poroton blocks.

I would be very grateful for quick responses.

Regards,
Tatze
E
E.Curb
8 Mar 2012 17:53
Hello,
why aerated concrete (Ytong)?

Please, do not use a mix of building materials in the masonry. You really shouldn’t do that......

Best regards
N
Neubau2013
30 Mar 2012 23:29
I agree with E. Curb. Why use Ytong now? Reduce the size with Poroton. When reducing the thickness (12cm (5 inches)), it’s advisable to use interlocking joints, or at least flat anchors or masonry anchors with 6mm (1/4 inch) dowels. It needs to hold securely.

Is it just this one window that’s too large, or does it affect all the windows? If it concerns all the windows and you are building a house with a brick veneer facade, it could also be the reveal. The brick veneer measurement is ultimately the dimension shown in the plans. (For example: 110cm (43 inches) width in the plans and 122cm (48 inches) Poroton size… which results in a 6cm (2.5 inches) reveal per side.)