What is the purpose of firestop systems?

Firestop systems serve a crucial function in maintaining the integrity of fire-resistance-rated assemblies. Their primary purpose is to seal penetrations and joints in walls, floors, and ceilings where various building services, such as electrical conduits, plumbing, and HVAC ducts, pass through these barriers. This sealing is vital to prevent the spread of fire, smoke, and gases from one compartment of a building to another, effectively containing a fire and ensuring that it does not compromise the safety of other areas.

By filling these gaps or openings, firestop systems help to maintain the performance ratings of fire-resistant structures as designed, thereby complying with building codes and safety regulations. This contributes significantly to overall fire safety in buildings, protecting both occupants and property.

In contrast, other options are not aligned with the primary function of firestop systems. Decorating fire alarms does not have any relation to fire stopping and is not relevant to fire prevention strategies. Creating fire escapes focuses on egress and does not involve sealing penetrations. Facilitating air circulation can contradict the limitations that firestop systems are designed to enforce, as they prevent the uncontrolled movement of air, smoke, and fire through these openings.