Roof was a low slope roof with no overhang, almost flat in design. I needed to upgrade because of recent leaks. I ripped off the entire roof including all the framing. Started over giving the a nice pitch, installed matching shingles of my home. My wife indicated to me that I should install a weather vane. When I saw the price of cupolas, I decided to make my own. Upon completing the cupola I ordered the weathervane you see in the picture.