Roof Scupper

Definition

A roof scupper is a fitting cut through a parapet wall system that acts as a waterway, allowing water to be discharged off the roof.

Purpose

The purpose of a roof scupper is to provide a drainage outlet for flat or low-slope roofs, preventing water accumulation and potential damage by directing water away from the roof surface.

Examples of Use

• Commercial flat roofs use scuppers to manage rainwater and prevent pooling by directing it to drainage systems.
• Residential homes with parapet walls may have scuppers installed to ensure proper roof drainage and avoid water damage.
• Roof gardens and green roofs incorporate scuppers to handle excess water runoff.

Related Terms

• Parapet Wall: A low protective wall along the edge of a roof.
• Downspout: A pipe that carries rainwater from a gutter down to the ground or drainage system.
• Gutter: A channel installed along the roof edge to collect and direct rainwater away from the building.

Notes

Regular maintenance and inspection of roof scuppers are essential to ensure they remain clear of debris and function properly to prevent water damage.