What is the role of the roof vent operator commonly called?

• A. Roofer installing shingles.
• B. Roof Boss or Ventilation Group Supervisor responsible for planning, cutting openings, and maintaining safety on the roof.
• C. Interior firefighter.
• D. Ground safety officer.

Answer: (B)

In vertical ventilation, the person on the roof who directs and coordinates the roof operations is the Roof Boss or Ventilation Group Supervisor. This role is about turning plan into action on the roof: deciding where to cut openings, how large the openings should be, and how to carry out the work safely. The Roof Boss plans the ventilation path to pull heat and smoke away from the fire area, assigns tasks to the crew on the roof, and ensures everyone stays safe—using fall protection, maintaining awareness of hazards, and keeping communication with interior crews and incident command. They also oversee the tools and openings, making sure cutting is efficient and controlled so the vent path functions as intended.

Other roles described don’t fit this on-the-roof leadership function. A roofer installing shingles is a tradesperson focused on roof construction or repair, not the tactical command of ventilation operations. An interior firefighter operates inside the building, not on the roof directing openings. A ground safety officer is an external safety supervisor and does not manage the active roof ventilation work.