The goal of providing adequate Fire-Stopping is to ______________the spread of smoke and fire throughout a building.

• A. prevent
• B. block
• C. limit
• D. delay

Answer: (C)

The purpose of fire-stopping is to limit the spread of smoke and fire by maintaining compartmentation and slowing transfer through penetrations, joints, and openings in fire-resistance-rated assemblies. It’s about reducing the extent and rate of propagation so occupants have time to evacuate and firefighters gain time to respond. Complete prevention is not guaranteed, and while delaying spread is part of the effect, the goal is to contain and restrict movement rather than fully block or zero it. This approach applies to penetrations through walls and floors for pipes, ducts, cables, and other services, keeping fire and smoke within compartments as long as possible.