Roof Drain Occupied Roof

Cast iron roof drain with 2 in.

Roof drain occupied roof.

Close coordination with structural engineering relative to location and roof pitch as well as proper sizing in accordance with local climactic conditions are the basis for the design of the roof drainage system. Watts drainage products rd 300 r series 6 in. Roof drains are generally installed on flat roofs or roofs surrounded by parapet walls. A scupper is a drainage point on the edge of the roof.

No hub cast iron high volume roof drain with ductile iron dome. Inner roof drains. Application access covers boxes animal shelter zoo apartments canopy terrace combination main overflow drain. Inner roof drains are used on flat roofs and include a low section or channel that collects water and feeds it into a concealed drain that leads to an underground drainage system.

Watts drainage products rd 300 r series 4 in. Inner drains are resistant to freezing but can require careful maintenance to prevent problems. Usually scuppers are part of the backup drainage system that helps the roof shed excess stormwater. Pitched roofs not surrounded by parapet walls are generally drained by gutters.

A roof drain is installed on a building roof or canopy to convey storm water from the roof or canopy to the storm drainage sewer or retaining area. From the roof drain to the storm drainage piping to storm sewer eventually making it s way to the city sewer system. Building drainage roof drains. If a scupper is part of the overflow system then it will be a few inches typically two inches above the roof surface.

They are incorporated into the walls or parapet.