DSR-RGS-12 is a self-regulating roof and gutter heat-trace cable designed to prevent ice dams and icicle formation on building roofs, gutters, valleys, and downspouts. Installed along roof edges and drainage paths, it automatically adjusts its heat output with changing temperatures—delivering more heat in cold conditions and less as it warms—to help maintain water flow, reduce the risk of leaks and structural damage, and provide reliable winter freeze protection for residential, commercial, and industrial buildings.