Ask when finish/exposed spiral, connection type, seal method, support, or fitting orientation is unclear.
Watch out
Do not try to muscle long spiral into place alone if it will bend or swing.
Check
Plan the lift
Support both ends
Protect finished surface
Steps
Verify size, fitting type, and airflow/branch direction.
Check the connection method: coupling, collar, flange, gasket, screws, or sealant.
Support the duct so weight is not deforming the joint.
Focus on the actual issue: not using enough hands for long spiral section.
Photograph or mark the condition if someone else needs to approve it.
Say this to your foreman
In Spiral, Round & Oval Duct Install, I'm looking at: Enough hands for long spiral section not used. What should I verify before I cut, drill, seal, cover, move, or install?