12 in Low Silhouette Dome Roof Drain

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for efficient water management, this roof drain features a robust cast iron body with a protective coating to resist corrosion in demanding environments. The assembly includes a combination membrane flashing clamp and integrated gravel guard to secure roofing materials while preventing debris from entering the drainage system. Designed with a low silhouette poly-dome, this unit minimizes vertical profile on the roof surface while maintaining high flow capacity. It is fully ASME- certified and UPC- and IPC- compliant, ensuring it meets rigorous plumbing standards for commercial and industrial drainage applications.