Does a grease duct elbow need a cleanout access door

Plain-English answer

Grease duct is not just air duct. It has to be inspected, cleaned, and maintained. If an elbow/change of direction has no cleanout or access method, the system may be impossible to clean after construction.

Check the grease duct drawings, hood submittal, NFPA/code requirements as adopted by the job, and manufacturer/listing for the access door. Likely recovery is adding an approved cleanout/access door in the correct location before the duct is wrapped or enclosed.

Field checklist

• 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.

Ask Foreman

Verify before acting

Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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