Interpretation #7289
Published January 06, 2014
Original Request
- Code Version
- 2010
- Code
- PLUMBING
- Code Description
- Plumbing
- Chapter
- 11
- Section
- 1107.2 & 1107.3
- Topic
- Roof Drains/Scuppers
Question
Is it the intent of Section 1107.2 to not allow the secondary roof drain scupper or drain from a higher roof from spilling on to a lower roof? If the overflow from a higher roof can spill on to a lower roof, is the secondary scupper or drain on the lower roof required to be sized handle the overflow from both roof areas?
Answer Published 01/06/2014 at 11:38 AM
Yes it is the intent of Section 1107.2 of the 2010 Florida
Building Code Plumbing to NOT allow a higher roof secondary
roof drain scupper to drain from a higher roof spilling on
to a lower roof.
Building Code Plumbing to NOT allow a higher roof secondary
roof drain scupper to drain from a higher roof spilling on
to a lower roof.
Commentary
The termination of secondary/emergency roof drain must be
located as to alarm the building occupants that the primary
drain is having issues with flow. If a higher roof's
secondary drain was allowed to spill onto the lower roof,
the lower roof's primary drain would pick up the flow and
this would NOT alarm the building's occupants and this
intent is not met.