Cavity fire barriers are specially designed systems which inhibit the spread of fire and smoke within the concealed spaces and cavities within a building. They are primarily used within walls, floors and roofs to compartmentalise the spaces to ensure that fire spread is limited.
Modern constructions often require external cladding, external facades and rainscreen systems to be held away from the building structure to allow ventilation and improve the building’s energy efficiency. This resulting cavity creates a serious fire protection threat to structures and people. The void can act like an open chimney and allow the fire to spread quickly both vertically and horizontally around the building. Within this void, it is essential to have a cavity fire barrier.