Cavity Barriers are designed for use in all building and construction joints. It is a specially coated, woven glass fibre blanket. Cavity Barriers can provide up to 2 hours fire and smoke protection to large unsupported openings. Typical uses would be subdivision in an attic void and partitioning the void below a raised floor.
See data sheet for Nullifire B810 Cavity Barrier – PDF
See data sheet for Firefly Vulcano – PDF
See data sheet for Firefly Titan – PDF