15 in Complete Assembly Roof Drain

SPECIAL ORDER ITEM. Review Returns Policy before purchase. Engineered for primary roof drainage, this assembly features a robust cast iron body with a protective coating to resist corrosion in demanding rooftop environments. The unit includes an integrated combination membrane flashing clamp and gravel guard to secure roofing materials while preventing debris from entering the drainage system. A low silhouette poly-dome provides efficient water flow while minimizing the profile above the roof surface. This drain is fully ASME-, UPC-, and IPC- compliant, ensuring it meets rigorous North American plumbing standards for commercial and industrial roof applications.