What are scuppers on a roof?
Description: Scuppers are used to provide an outlet through parapet walls or gravel stops on flat and built-up roofs to allow drainage of excess water. They can be used in conjunction with gutters and downspouts to divert the flow to the desired location.
How do roof scuppers work?
A roof scupper is a drainage system for flat roofs that can’t rely on sloping to naturally move water through a gutter system. Scuppers are essentially small devices that work by giving the water a mechanism through which it can escape the roof without passing through the interior of the building.
Where do scuppers drain to?
What is a roof scupper? In short, a scupper is a detail that provides drainage to a roof system by allowing the water runoff from the roof to exit the roof through a metal edge, parapet wall or through the deck into a downspout or leader not run through the interior of the building.
How do flat roofs drain water?
What do Drainage Systems do? A low-slope roof tilts slightly downhill from its center or from one side, so water rolls off to parapet scuppers and down the hopper (downspout). The scuppers are the openings in the outside walls, specifically designed to allow water, but not debris, to wash off your roof.
How do you size scuppers?
The only unconditional guideline for roof scupper sizing provided by the code is that “scupper openings shall be not less than 4 inches (102 mm) in height and have a width that is equal to or greater than the circumference of a roof drain sized for the same roof area.”
How close can a roof drain be to a parapet?
The recommended maximum distance between drains is 200 ft. Provide adequate flashing at parapets, openings, walls, joints, etc. Limit the parapet walls or provide overflow scuppers. These should be located at the anticipated maximum water depth (build-up).
What are parapet scuppers?
Parapet scuppers, drains located on the sides of parapets, are responsible for taking water that has collected on a roof’s side walls and transporting it into gutters. Without parapet drainage, water can collect and damage any roof near its parapets.
What are roof scuppers?
Scuppers provide a pathway for water to flow through parapet walls or any other raised edge around a roof, such as a gravel stop edge metal. Primary roof scuppers normally channel water off the roof into a conductor box that connects to a downspout or a gutter. Overflow roof scuppers will let the water run freely down the side of the building.
What is a parapet drain?
Parapet drains, also called roof scuppers, are indispensable parts of any roof drainage system. These drains ensure that water collecting near parapets is sent into gutters and drained away from your home or business, preventing damage and keeping your residents safe.
What is a Canale (roof scupper)?
A Canale (roof scupper) is a spout/drain installed in the parapet of a flat roof building to drain rainwater. Unlike most industry standard roof canales made of wood and sheet metal which deteriorate rapidly in a few short years, our Fiberspan Concrete Canales (Roof Scuppers) endure the most extreme of weather conditions for many years.