Can't say I've ever heard them doing it when they cool down, but when the sun hits them in the morning, it can happen. If they're mounted to an aluminum facia, that can also transfer noise when expand ... read more
Begin by going to www.NARI.org and find a chapter of the National Association of the Remodeling Industry in your area. NARI members are held to a high standard and they commit to a Standard of Ethics ... read more