Metalman Roofing showed us pictures of the work they had done on flat roofs simular to ours. It was only after they had secured our business that the foreman of the job admitted they had never done a roof like ours. It took longer than they said it would and the roof still leaks. Our attempts to get it fixed right were all pretty much useless. And the insurance bond they showed us also turned out to be unuseable. These guys talk a great game but really, do not let them near you.