Nullifire Bespoke Ventilated Cavity Barriers

Nullifire ventilated cavity barriers are made to order to suit the cavity width on the job, so the range is effectively bespoke rather than off the shelf. The barriers use a fire rated rock mineral fibre section with a high expansion intumescent seal bonded to the leading edge, which closes the ventilation gap in a fire while leaving it open in normal service. The large FV225 barrier alone is offered in 40 widths from 35mm to 425mm, and fixing brackets are supplied as standard.

• Made to order, typically on a 10 working day lead time
• Standard height 75mm, length 1000mm, with a 4mm thick intumescent
• Range covers FV025, FV050, FV065, FV125, FV144 and FV225