Overflow Roof Drain – Water Dam Type

Fitted with a combined flashing clamp and 2″ high solid water dam, this corrosion resistant, Duco coated cast iron roof drain is designed for installation in flat roofs of any construction where a rooftop pool of water is used to insulate the building’s interior, or on conventional roofs where an emergency overflow is needed. A polyethylene dome strainer protects drainage lines from debris.