Gap Above Double Glaze Window

[JohnDory]

i decided to redo the sealant round the inside of a double glazed window as it was a little drafty. there was a plastic strip at the top of the window which i removed. this has exposed a gap between the top of the window and the window opening in the wall, which is open to the cavity wall. i've checked a few sites about fitting windows and am guessing the window was too small when it was installed. i'm not sure if a gap like this should be filled with expanding foam or if i am best just putting it back the way it was, and having a look in the summer.

thanks

Untitled

• JohnDory
• 15 Dec 2014
• 1

Untitled

• JohnDory
• 15 Dec 2014
• 1

 

[Gazman16]

Expanding foam and stick the trim back on once its gone off.
Assuming you just buy one of the cheap cans and not a professional gun system make sure you masking tape and cover everything nearby, It can expand like mad and stain things. Also the cheap cans are hard to control

 

[JohnDory]

Thanks. Is there any issue with bridging the gap between the interior and exterior wall of the cavity with the foam?

 

[Gazman16]

No its fine