Linear Gap Seal - TENMAT

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
Additional Info

  • 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.
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