Do not bury a reverse-lapped head flashing behind exterior finish work.
Check
Check whether the weather barrier laps over the head flashing correctly.
Look for a reverse-lap path into the wall cavity.
Verify the exterior wall/envelope detail, not just the mechanical drawing.
Do not cover the condition with siding or trim.
Photograph the lap sequence before correction.
Steps
Check whether the weather barrier laps over the head flashing correctly.
Look for a reverse-lap path into the wall cavity.
Verify the exterior wall/envelope detail, not just the mechanical drawing.
Do not cover the condition with siding or trim.
Photograph the lap sequence before correction.
Say this to your foreman
The louver head flashing at [location] appears reverse-lapped with the building wrap. I checked the water path and it drains behind the flashing. Do you want this held for envelope correction before cover?