A grease duct change of direction needs cleanability/access per the approved code/detail. Do not close the shaft or wrap the duct until cleanout access is verified.
Do not wrap, shaft, or close a grease duct change of direction before cleanout access is confirmed.
Check
Locate every change of direction and low/collection point in the grease duct run.
Check approved drawings and grease duct/access door submittals.
Verify that access doors remain reachable after wrap, shaft, ceiling, or wall closure.
Confirm the door type/listing and seal method before cutting welded duct.
Take photos before closure for inspector/fire marshal documentation.
Steps
Locate every change of direction and low/collection point in the grease duct run.
Check approved drawings and grease duct/access door submittals.
Verify that access doors remain reachable after wrap, shaft, ceiling, or wall closure.
Confirm the door type/listing and seal method before cutting welded duct.
Take photos before closure for inspector/fire marshal documentation.
Say this to your foreman
The grease duct elbow/change of direction at [location] has no visible cleanout access. I checked the drawing and closure sequence. Do you want an approved access door installed here before wrap/shaft cover?