What is the primary purpose of compartmentation in firestop systems?

The primary purpose of compartmentation in firestop systems is to contain fire and smoke. This involves creating barriers within a building that can prevent the spread of fire and smoke from one area to another, thereby enhancing safety for occupants and allowing time for evacuation or for firefighting efforts. Effective compartmentation helps to limit the size of the fire and isolates it to a specific area, preventing it from rapidly engulfing the entire structure.

This approach is critical in maintaining the integrity of fire-resistance-rated walls, floors, and ceilings, which are designed to withstand fire for a certain period. The design of firestop systems complements this by sealing joints and openings in these barriers, ensuring that there are no pathways through which fire and smoke can travel. While other factors like construction ease, aesthetic appearance, and material costs are important considerations in building design, the primary role of compartmentation is fundamentally centered on safety and fire protection.