While this is not normal, chances are this is not a functional issue. Can you send me a photo of your roof so I understand what sort of metal roof you have and perhaps I can comment further? My email is todd@asktoddmiller.com
Todd Miller
2014-08-21 16:36:05.000000
Our roof makes a lot of noise (some of them a darn right loud) when it expands an contracts. Does this affect the roof in anyway such as cause it to leak over time? And also is it normal for it to do this, it's done it 5 times in the short time I've been asking these questions.
Thanks
Claudia Pompella
2014-08-21 16:25:00.000000
+1
Not usually a functional issue. Post up some pictures if you can.