Cast Iron Square Roof Drain – RD-200-CP

Engineered for exterior drainage, this cast iron square roof drain Revit family features a slotted promenade grate over an adjustable sump assembly. The drainage fitting comprises a heavy cast iron body finished in industrial charcoal enamel, topped by a robust square grate. Perforated with concentric rectangular slots, the grate provides ample catchment area while intercepting debris on pedestrian decks or flat roofs. Beneath the grate frame, a cylindrical upper ring with vertical relief slots sits above a wide clamping collar, designed to secure waterproof membranes. The stepped bottom drain bowl tapers to a standard vertical pipe outlet, complemented by a side cleanout or primer plug boss integrated directly into the casting.

The download is a 317 KB file containing a Revit family (.rfa). Load it into a project from the Insert tab with Load Family, then place it like any other component of its category; it schedules and tags with the rest of your model.

Load the RFA into Revit project environments to coordinate gravity stormwater and sanitary drainage layouts. MEP engineers and plumbing designers can insert the drain directly onto flat slab floors or roof decks, connecting the underside spigot to downstream pipework runs. System classifications and flow parameters enable accurate hydraulic calculations, while 3D geometry supports clash detection against structural framing and ceiling plenums.

Suited for rooftop terraces, multi-storey parking garages, mechanical penthouses, balconies, and plaza promenades, this promenade roof drain handles surface rainwater runoff in commercial, healthcare, and residential buildings. Plumbers and BIM coordinators specify this assembly during design development and construction documentation phases. It pairs naturally with pavers, pedestals, waterproofing membranes, and insulation layers, ensuring seamless integration into cast-in-place concrete decks and suspended structural slabs.