How do I handle and install exposed double-wall spiral duct without scratching it

Plain-English answer

Wear clean, oil-free cloth utility gloves. Keep the factory protective plastic wrap skin intact on the exterior of the pipe sections for as long as possible during hanging.

Use wide nylon lifting slings instead of wire chains on your chain hoists, and cushion the metal inside your cradle hangers using custom-cut rubber neoprene lining strips.

Field checklist

• Stop and verify the approved detail, manufacturer instructions, foreman direction, and project specs before touching it.
• Wear clean, oil-free cloth utility gloves. Keep the factory protective plastic wrap skin intact on the exterior of the pipe sections for as long as possible during hanging.
• Use wide nylon lifting slings instead of wire chains on your chain hoists, and cushion the metal inside your cradle hangers using custom-cut rubber neoprene lining strips.

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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