Flat roofs have unique challenges related to drainage; expert roofers design systems that prevent ponding water

https://www.scribd.com/document/901505635/Roofing-Services-101-What-to-Expect-from-Your-Local-Roofing-Company-148304

Flat roofs have unique challenges related to drainage; expert roofers design systems that prevent ponding water, which can lead to leaks or structural issues over time.