Cast Iron Roof Drain with Dome Strainer – RD-280

Engineered for stormwater management, this grey cast iron roof drain Revit family provides a high-profile slotted dome strainer for flat roof build-ups. The assembly features a rugged cast iron construction with a protective coated grey finish. At the top, a slotted dome strainer allows high-volume stormwater intake while intercepting leaves, gravel, and debris. Below the dome, a circular clamping ring with perimeter hex-head fasteners secures the waterproofing membrane against the wide square decking flange. The integrated sump basin tapers cleanly into a vertical bottom outlet collar designed to connect directly into internal leader pipes, ensuring reliable water diversion across low-slope roofing systems.

The download is a 287 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 this RFA component directly into a Revit MEP or architectural project to coordinate drainage runs and roof penetrations. Position the drain along structural roof decks or insulation sumps, aligning the deck flange to the waterproofing layer. Pipe connectors enable seamless attachment to gravity stormwater pipework, allowing hydronic calculation, slope verification, and interference detection in multi-trade coordination models.

This roof drain is suited for commercial buildings, industrial warehouses, schools, healthcare facilities, and multi-residential complexes with flat or low-slope roof profiles. It integrates into parapet-bounded roofs, green roof margins, and concrete deck drainage schemes. Plumbing engineers and architectural technicians typically search for cast iron roof drains, storm drain outlets, roof sumps, and rainwater drainage fixtures when preparing detailed MEP models and technical roof penetrations.