Scupper Flat Roof Downspout

Scupper drainage systems are characterized by chutes cut out of the parapet walls which extend above roof level.

Scupper flat roof downspout.

Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage. Scuppers are roof drains on the edge of the roof. Gibraltar s downspout conductor head is an enlargement at the top of a downspout used to control the flow of runoff. Carson dunlop associates explain in their sketch above left that some flat roof designs relying on scupper drains and downspouts provide a set of secondary roof drain scuppers located 2 above the roof membrane.

A roof scupper is a roof drainage system that provides drainage of a flat roof 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. 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. When a scupper is connected with a down pipe the chances are it will freeze during winter and not drain any water. A primary scupper in a parapet wall with a conductor head and a downspout and an overflow scupper.

This is a small flat roof with a wide mouth scupper. Winter weather can also freeze a gutter or downpipe and cause the scupper not to function properly. Scuppers can let the water drop off the roof to the ground or can lead into a gutter system. The flexible design easily bends and holds its shape and can be extended from 25 in.

Typically water is collected by an external leader head catchment that feeds into a downspout installed beneath the chutes. The scupper may channel water off the roof into a conductor box with a downspout or a gutter or with overflow scuppers it may let the water run freely down the side of the building. Many times the problem will come when a leader pipe or leader header gets clogged due to debris and leaves. This conductor head is made from reliable galvanized steel.

I have been working with customers drainage issues for years and will work with you to resolve any problems you have with your roof s drainage system. Tim hillman enterprises scupperbox offers a wide selection of state of the art roof drain leader heads.