Under what conditions should firestop products be applied?

Firestop products are essential for maintaining fire-resistance-rated assemblies in buildings. They are specifically designed to seal openings and joints in fire-rated walls, floors, and ceilings. The purpose of these products is to prevent the spread of fire, smoke, and toxic gases through these gaps, thereby enhancing safety and compliance with fire codes.

Applying firestop products during construction is most critical when there are openings, such as those for electrical conduits, pipes, and ducts that penetrate fire-rated structures. This ensures that the integrity of the fire-resistance-rated assemblies is maintained, allowing them to function effectively in the event of a fire.

While legal requirements and specifications from architects are important, the direct necessity for firestop application arises primarily from the presence of openings or joints that compromise the fire rating of constructions. Hence, the correct context for the application of firestop products aligns closely with conditions that involve these potential pathways for fire and smoke spread.