Tech Specialties™ Frank Pattern™ 852N Bottom Outlet Roof Drain, 2 in Outlet, No-Hub Connection, Cast Iron Grid, Cast Iron Drain

The Roof Drain must be designed to drain off rain water in the most effective manner possible while maintain an aesthetic appeal. To select the proper roof drain, the following information must be determined: type of roof constructions, roof pitch, volume of expected rainfall, desired rate of drainage, roof load and safety overflow requirements location of drains and possible vandal proofing. For heavy rainfall regions, use 12 in Dia type and for light rainfall regions, use 8 to 12 in Dia type drains.