A firestop is a passive fire protection system used to block the spread of fire, smoke, and gases through openings in walls, floors, and ceilings. It is a seal made of fire-resistant materials that is installed around penetrations like pipes, cables, and ducts, as well as in joints, to compartmentalize a building and contain fires.
Importance
Life safety: Firestops provide critical time for occupants to evacuate and for emergency services to respond by containing a fire within a specific area.
Building codes: Building codes require firestopping systems to ensure the integrity of fire separations and protect the structure.