A scupper is basically a detail in a roof system that allows water to discharge from the roof into a downspout or leader without having to run through the interior of the building and makes the roof drained.
Integrated drainage systems are used for the purpose of two things: primary drainage and overflow. The purpose of roof scuppers on your commercial building needs to be determined before you start researching maintenance services or alternative installation options that may be more appropriate for your needs.
What Are the Advantages of Roof Scuppers?______________________
Scuppers are still compatible with downspouts, so you don't need to worry about pools of water around your foundation, since you can use downspouts with them.
Roof drains are in most cases also installed in such a manner that they are able to prevent water from leaking out of them if there is some obstruction somewhere along the drain line, and in this case, the water from the drain will not be able to leak out.
Roof drains are available in various types according to the slope or flatness of the roof.– Siphonic Roof Drains– Gutter Systems– Inner Roof DrainsRoof Drain Liners