Grease duct wrap is too close to combustibles or installed wrong
Stop if grease duct, wrap, framing, or clearance does not match the listed assembly. Verify the exact wrap system, layers, overlaps, bands, penetrations, and combustible clearance per manufacturer/ESR/project/AHJ direction.
Do not invent a zero-clearance assembly, skip layers/overlaps, or cover grease duct wrap that does not match the approved listing.
Check
Identify the wrap product and approved project detail/submittal.
Check number of layers, overlap direction, banding/fastening, seams, corners, access doors, and penetrations.
Look for compressed wrap, gaps, tears, oil/dust on the duct, or missing treatment at supports.
Confirm combustible clearance/zero-clearance claim only against the listed assembly and AHJ/project approval.
Photograph the run before it is hidden by walls or ceiling.
Steps
Identify the wrap product and approved project detail/submittal.
Check number of layers, overlap direction, banding/fastening, seams, corners, access doors, and penetrations.
Look for compressed wrap, gaps, tears, oil/dust on the duct, or missing treatment at supports.
Confirm combustible clearance/zero-clearance claim only against the listed assembly and AHJ/project approval.
Photograph the run before it is hidden by walls or ceiling.
Say this to your foreman
The grease duct wrap at [location] is close to combustible framing and I need to verify the listed assembly. I checked the product/detail and see [gap/overlap/layer/access issue]. Do you want this held for inspection or corrected before cover?