Gutter systems are essential components of a building's drainage system, designed to collect and direct rainwater away from the roof and foundation. They help prevent water damage, mold growth, and erosion by channeling water through downspouts and away from the structure. Typically made from materials like aluminum, vinyl, or copper, gutter systems come in various shapes and sizes to fit different architectural styles. Regular maintenance, such as cleaning out debris, is crucial to ensure they function effectively and protect the integrity of the building.