Cavity Barriers

Designed to protect the building void
between the inner and outer facade elements

An intumescent strip fixed to high density non-combustible insulation, OSCB's are designed to form an open-state cavity barrier within a rainscreen system. This allows ventilation and drainage under normal service conditions, while in the event of a fire the intumescent strip quickly expands outwards to seal the cavity, preventing the passage of fire and smoke.
Intumescent or Ventilated Cavity Fire Barriers are designed to reinstate fire resistance performance within external wall cavities that require permanent (open-state) ventilation in non-fire conditions.