What does a duct primarily do in a building's fire control system?

In a building's fire control system, the primary function of a duct is to convey air. Ducts are integral components of the heating, ventilation, and air conditioning (HVAC) systems, designed to transport air throughout a building. In the context of fire safety, ducts play a crucial role in ensuring that air is moved efficiently within various spaces, which is vital for both fire detection and suppression strategies.

During a fire, the appropriate movement of air can help manage smoke and heat by directing them away from occupied areas or toward smoke control systems. This enhances visibility for evacuation and helps maintain tenable conditions for both occupants and first responders. Proper duct systems are crucial for maintaining a safe environment in the event of a fire, as they can influence how smoke and toxic gases spread, allowing for effective smoke control measures.