Missing to mark airflow direction on staged duct

Mark airflow direction on staged duct when direction matters. It prevents backwards fittings and confused handoff.

Stop if

• Can I mark airflow arrows on these staged pieces before install?

Watch out

• Do not assume the next person knows which way the piece is supposed to face.

Check

• Confirm airflow from drawing/equipment.
• Mark arrows on pieces that can be flipped.
• Check fittings, dampers, taps, and transitions.
• Keep marks visible during staging.
• Ask if airflow is unclear.

Steps

• Confirm airflow from drawing/equipment.
• Mark arrows on pieces that can be flipped.
• Check fittings, dampers, taps, and transitions.
• Keep marks visible during staging.
• Ask if airflow is unclear.

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