Tested in accordance with BS 476: Part 20, TENMAT NVFB Non-Ventilated Fire Barriers provide up to 2 hours fire protection for vertical external wall cavities. The NVFB Non-Ventilated Fire Barrier is used for preventing fire penetration to adjoining compartments within external cavities in a vertical situation for specified periods of up to 2 hours.
They are manufactured to suit cavity widths and are held in placed by a combination of compression and multi-purpose brackets
NVFB Non-Ventilated Fire Barrier
- Simple installation
- Up to 120 minutes fire rating
- Maintenance free
- Unaffected by humidity and moisture
- Good acoustic insulation
- Cold smoke seal
- Thermal Performance
Fire Testing Approvals
Fire Tested in accordance with BS EN 1366-3: 2009
Thickness (total cavity plus 10mm for compression fit / 5mm in smaller cavities) x 100mm x 1000mm. (80mm deep in cavities <100mm).
Can be supplied as plain fibre or Shrink-wrapped.
2no. Multipurpose Brackets are supplied per metre, The Barriers must be fitted using these brackets as per installation instructions.
- Firefly OverSleeve Plus is available in 5m lengths – 2 x 180 x 1000 mm, plus repair tape.