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 23500 – Roof Drain: Large Sump w/14" Square C.I. Promenade Top 23500-AE – Roof Drain: Large Sump, Promenade Top with Adjustable Extension 23510 – Roof Drain: Large Sump w/14" Dia. Extra Heavy Duty C.I. Parking Grate 23710 – Roof Drain: Medium Sump & 11-3/8" Square Cast Iron Promenade Top 23730 – Roof Drain: Small Sump & 9" Sq. Cast Iron Promenade Top 23740 – Roof Drain: w/Small Sump & 8" Sq. Heavy Duty Nikaloy Promenade Top 24020 – Roof Drain: Composition Deck Flange & Super-Flo Grate 24030 – Roof Drain: Composition Deck Flange, 11-3/4" C.I. Grate & Membrane Clamp 24040 – Roof Drain: Composition Deck Flange and Super-Flo Grate 24050 – Roof Drain: Garage Drain with Wide Support Flange 24060 – Roof Drain: Special-Duty, Composition Deck 24200 – Promenade Drain: Removable S.S. Filter, Bonding Flg, C.I. Top
