Typically water is collected by an external leader head catchment that feeds into a downspout installed beneath the chutes.
Roof scupper and downspout.
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.
Scupper drainage systems are characterized by chutes cut out of the parapet walls which extend above roof level.
A downspout waterspout downpipe drain spout roof drain pipe leader is a pipe for carrying rainwater from a rain gutter.
Buildings with railed rooftops can construct scuppers to let rainwater drain off instead of pooling within the railing of the roof.
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.
Scuppers can be installed to carry water into gutters or directly into downspouts through conductor heads.
They can be used in conjunction with gutters and downspouts to divert the flow to the desired location.
A primary scupper in a parapet wall with a conductor head and a downspout and an overflow scupper.
Scuppers can also be placed in a parapet for the same purpose.