What is the purpose of a firestop related to smoke control?

The purpose of a firestop related to smoke control is to provide a smoke stop by minimizing air leakage. Firestopping systems are specifically designed to seal openings and joints created during construction, which can act as pathways for smoke and fire to travel through different areas of a building. By effectively sealing these openings, firestops help to compartmentalize spaces and restrict the movement of smoke, thereby enhancing the overall safety of the building and protecting occupants in the event of a fire.

In contrast to other options, minimizing air leakage is critical for achieving smoke control, as it reduces the risk of smoke spreading to areas that could pose a danger to occupants or impede escape routes. This control is essential in the context of life safety and property protection during a fire emergency.