I’ve attached a new draft image to preview, before finalizing. I’d like to hear any valuable feedback from the forum. Your experience helps to make these improvements to add to make quality images. Thank you!
Scuppers are not the only option for overflow.
Also, the title. should it be “Built-up Roofing features?” This is not a flat roof installation guide. I would also recommend more visible contrast between layers.
Anyway, here is some verbiage for roof drainage.
Where roof drains are required, secondary emergency overflow roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason.
You can reference this in IRC
R903.4.1 Secondary (Emergency Overflow) Drains or Scuppers
2 Likes