Roof Drains Josam's roof drains include Large Sump, Medium Sump, Small Sump, Sill Type, Promenade Top, Parapet Type, Flow Control Type, Overflow Type, and Green Roof Drains. They feature the WEJLOC® clamping system. The design includes a gravel stop that prevents roof debris from entering the drain, ensuring complete drainage through "V" notch weirs while offering secure flashing with a positive non-puncturing bond to mating flange of collar. Filter by Large Sump Medium Sump Small Sump Sill Type Promenade Top Parapet Type Flow Control Type Overflow Type Green Roof Drain Miscellaneous Roof Drains & Accessories PVC Roof Drain Body 22080 – Roof Drain: Small Sump, Clamp Ring & Cast Iron Dome 22080-TSO – Roof Drain: Small Sump with Threaded Side Outlet 22100 – Combination Roof Drain 23730 – Roof Drain: Small Sump & 9" Sq. Cast Iron Promenade Top 23740 – Roof Drain: w/Small Sump & 8" Sq. Heavy Duty Nikaloy Promenade Top 24500 – Sill Drain: w/Rough Bronze Dome 24500-27 – Sill Drain: Shallow Sump with Bronze High Dome 24500-35 – Roof Drains: Shallow Type Sill Drain with Flat Grate 24500-45 – Sill Drain: Shallow Sump with Bronze Dome and 45 Degree Outlet 24500-90 – Sill Drain: Shallow Sump with Bronze Dome and 90 degree Outlet 24700-45 – Parapet Drain: with Sloping Bronze Grate and 45 degree Outlet 25540 – Flo-Septor: Small Sump, Clamp Ring & Solid Water Dam, Cast Iron
