https://www.reddit.com/r/Roofing/comments/15ar4il/why_are_asphalt_shingle_roofs_so_popular_is_the_us/
Why are asphalt shingle roofs so popular is the US? : r/Roofing
Jul 27, 2023 ... They are cheap, they stay put, they seal well and provide a water-tight roof, they look relatively good, (especially the shadow-line, ...