Grease-Duct Clearance and Wrap Coordination

Verify the required clearance, listed wrap or shaft system, access, support, and penetration details before closing the route around grease duct.

Stop if

• This grease duct uses [wrap/shaft system]. Can we verify clearance, wrap details, supports, and access treatment before this area is closed?

Watch out

• Do not compress listed wrap, mix systems, bury access, or assume wrap automatically eliminates every clearance requirement.

Check

• Identify the exact listed protection system
• Confirm clearance to combustibles and other work
• Check wrap joints, overlaps, bands, and access-door treatment
• Coordinate supports and penetrations
• Keep inspection points visible until accepted

Steps

• Identify the exact listed protection system
• Confirm clearance to combustibles and other work
• Check wrap joints, overlaps, bands, and access-door treatment
• Coordinate supports and penetrations
• Keep inspection points visible until accepted

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