Every hole needs a flashing
A penetration is anything that passes through the roof: pipes, vents, conduits, curbs and equipment supports.
Sources
- AFS Division 07 technical notes - Architectural Flashing Supply

Pipes, curbs and irregular supports: how each is flashed, and why a pitch pocket is the last resort.
4 min · 7 slides · 4 questions
All lessonsA penetration is anything that passes through the roof: pipes, vents, conduits, curbs and equipment supports.
Sources