Hi,
I had new double glazing window bay put into my living room about 18 months ago. Today I've noticed a crack and on closer inspection see that all materials in the wall have crumbled away to leave a hole between the window frame and wall. (Picture attached) and the black sheeting is now visible.
Just after some suggestions for filling this hole, I'm considering expanding foam filler but just wanted some professional advice beforehand.
Any suggestions would be appreciated.
I had new double glazing window bay put into my living room about 18 months ago. Today I've noticed a crack and on closer inspection see that all materials in the wall have crumbled away to leave a hole between the window frame and wall. (Picture attached) and the black sheeting is now visible.
Just after some suggestions for filling this hole, I'm considering expanding foam filler but just wanted some professional advice beforehand.
Any suggestions would be appreciated.