// CODE SNIPPET
1126.96.36.199.1 Separate Piping System
JUMP TO FULL CODE CHAPTER
The secondary roof drainage system shall be a separate system of piping, independent of the primary roof drainage system. The discharge shall be above grade, in a location observable by the building occupants or maintenance personnel. Secondary roof drain systems shall be sized in accordance with Section 1101.12.1 based on the rainfall rate for which the primary system is sized.