We've recently had our big living room window replaced with a new pane of safety glass.
However, in the recent windy weather I've noticed the window was creaking. I assumed it was rain but the sound wasn't quite the same, and when I push gently on the window from the outside tonight it made the same noise.
Is this normal with safety glass? No other pane of glass in the same window unit makes the same noise, just the big pane in the middle.
The builder who installed it isn't going to come out unless I can explain in "technical language" what the issue is, can anyone help?