WR Intumescent Tape provides fire protection to cavities in situations where the cavity needs to be ventilated allowing air flow in normal circumstances but closing to give a fire resistant barrier in fire conditions.
Features & Benefits
- Tested to BS 476: Part 20: 1987
- Up to 2.5 hour fire rating
- Allows cavity to be ventilated and allow air flow in normal circumstances
- Quick & easy to install
Building Regulations require cavities to be stopped every 20 metres and when in line of a compartment floor or wall. In addition to this, there is often a requirement to provide through ventilation to the entire cavity. WR Intumescent Tape meets both requirements as it only occupies a minimal proportion of the cavity for its normal function, expanding to fill
the cavity in the event of fire. There are no published standards for fire testing of fire resistant cavities but WR Intumescent Tape has been tested according to BS 467: Part 20: 1987 and met fire resistance requirements for up to two and a half hours.