Most household roofs are pitched and combine various sections to produce a tough, practical, and weather-resistant covering. Though flat roofs nevertheless have slight inclines, builders not often make use of them because they’re extra at risk of ponding, that's the accumulation of water that will threaten a creating’s structural integrity. https://businessfeed.us/ideas-to-find-the-best-commercial-roofing-company-in-chicago-expert-tips/