Cast Iron Roof Drain with Slotted Dome – RD-300-R

Designed for flat roof rainwater management, this cast iron roof drain Revit family features a slotted dome strainer and clamping ring. This commercial rainwater outlet comprises a deep cast iron sump body, a wide flange clamping collar secured with perimeter hex bolts, and a tapered slotted dome strainer. The dome incorporates closely spaced vertical slots topped by a radial grate to prevent debris ingress while maintaining high-volume drainage capacity. Below the mounting flange, the circular body tapers to a central vertical bottom discharge outlet. Finished in a utilitarian protective grey and dark charcoal coating, the assembly represents a standard heavy-duty rainwater drainage fixture for structural roof decks and waterproofing build-ups.

The download is a 348 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.

In Autodesk Revit, load this RFA file directly into your plumbing or MEP project template. Place the component onto horizontal roof planes or slab cutouts, aligning the clamping ring with finished membrane levels. Connect standard rainwater pipework to the bottom discharge connector, configuring system slope, pipe sizing, and flow parameters within the MEP system browser to facilitate accurate schematic drainage calculations.

Essential for commercial, industrial, and multi-family residential typologies, this drainage fixture suits flat roof designs, podium decks, inverted roof assemblies, and parapet drainage gutters. It coordinates cleanly with MEP storm drainage layouts, parapet scuppers, and rainwater downpipes. Engineers and specifiers searching for a commercial roof drain, deck drain, flat roof outlet, or rainwater head will find this family straightforward to schedule alongside complementary plumbing accessories.