First move
Stop and document why the planned route does not work before changing anything.
Check before moving
- Latest drawing/revision
- Conflict trade and exact location
- Size/elevation/clearance
- Airflow/TAB impact
- Support/seismic changes
- Equipment and damper access
Photo ID to collect
- Wide conflict photo
- Close obstruction photo
- Measurement/elevation photo
- Print markup photo
Ask this
“The planned route hits this obstruction. Do you want me to hold this section until we get direction?”
Do not
Do not reroute duct just to make today’s piece fit.