Hi,
Background: 1970s brick veneer home. Single pane glass, original. House faces ocean on top of hill. High wind area.
We have recently had lots of storms and the large 3m wide front window is flexing inward up to 3cm. I feel like it is going to break. I looked closely outside and there is a huge gap between brick veneer wall and Ali window frame. It's about 8mm wide and I can see behind the brickwork.
Is this normal? Wouldnt it let water in? In heavy storms the window leaks at the bottom. What would be the best way to seal it? Should I use silicon? Does the window need to breathe ?
Thank you for your help and suggestions.