The answer to 'what causes downspouts' is that downspouts are an essential part of a home's roofing and drainage system. Downspouts are the vertical pipes that carry water from the roof's gutters down to the ground or into an underground drainage system. Their primary purpose is to direct water away from the home's foundation and prevent water damage.
Downspouts are typically made of metal, such as aluminum or galvanized steel, or vinyl. They are connected to the gutters at the top and terminate at the bottom, either with an extension that directs water away from the home or with a splash block that helps disperse the water. Proper installation and maintenance of downspouts are crucial to ensure they function effectively and prevent issues like basement flooding, soil erosion, and foundation problems.