Siding or plywood blocks the back of an intake louver
A blocked intake louver can starve outside air and create building pressure problems. Stop cover work, document the obstruction, and coordinate opening the full approved intake path.
Do not accept an intake louver that looks good outside but is blocked from behind.
Check
Look through the louver and behind the frame before cover.
Confirm the louver connects to a clear duct/plenum/opening.
Document any blocked backing board, panel, or framing.
Notify foreman/GC before exterior finishes hide the issue.
Recheck screen, flashing, and weather path after correction.
Steps
Look through the louver and behind the frame before cover.
Confirm the louver connects to a clear duct/plenum/opening.
Document any blocked backing board, panel, or framing.
Notify foreman/GC before exterior finishes hide the issue.
Recheck screen, flashing, and weather path after correction.
Say this to your foreman
The intake louver at [location] is blocked from behind by [plywood/panel/framing]. I checked the air path. Do you want the cover trade stopped and the opening cleared before we continue?