What is firestopping?
Firestop systems protect against the passage of flames, deadly gases and toxic smoke through openings that are created for penetrations, joints and gaps in fire-resistive walls, floors and floor/ceiling assemblies. The integrity of fire-rated assemblies is restored by firestop systems. Building codes require third-party tested systems to be installed whenever fire-rated construction is compromised by such openings.
What is a firestop system?
Firestop systems are combinations of products/materials, installed to a tested and rated specification, to prevent the passage of fire, smoke and gases between compartments of a building.
What are “third-party” tested systems?
Building codes require that firestop systems be tested in accordance with ASTM E814, Third party testing facilities such as Underwriters Laboratories, perform those tests. Manufacturers specify the system to be tested, and if the system performs to the particular test standard, a system is published.