Roof Scuppers

(Also see "Roof Drainage")

A thru-wall overflow scupper near a drain on a TPO roof.

This damaged exterior faceplate at a thru-wall scupper gives you an inside view.

More Pictures:

1. Assorted Roof Scuppers

2. Putting New Thru-Wall Scuppers in an Old Parapet Wall.

Useful Links:

1. Codes: "(P) 1503.4.1 Secondary (emergency overflow) drains or scuppers" in the 2015 International Building Code.

2. Technical: An excellent technical article on scuppers is available here at the website of the Copper Development Association. Provides construction details for various scupper types. They talk about scuppers being made out of copper in that article, but that doesn't mean that scuppers have to be made out of copper or that the information provided is only applicable to copper scuppers. (Copper is a great scupper material, though). 

3. Technical: Construction Details: Scupper/roof tie-in details for various roof types can be viewed at this page in the technical database at the Firestone Building Products' website.

4. Technical: Basic instructions for the installation of a thru-wall scupper box are available at the website of Metal-Era on this page