NBS Source
I'm a manufacturer

NVFB Non-Ventilated Fire Barrier

Verified by manufacturer 6 months ago

Tenmat Limited

Fire barriers providing up to two hours fire protection for vertical external wall cavities.

Jump to:
+44 (0)161 8722181 Website

Application

Suitable for closing vertical external wall cavities up to 600 mm wide.

Description

Tenmat’s NVFB Non-Ventilated Cavity Fire Barriers, are manufactured from stone mineral wool with an A1 Reaction to Fire Rating and are designed to maintain fire resisting performance to external wall cavities.


The NVFB is capable of providing effective fire resistance, for integrity (E) and insulation (I) for up to 120 minutes (EI120) depending upon the orientation of the NVFB and the construction of the external walls.


Tenmat NVFB is supplied cut to size to suit the cavity width or can be supplied in full slabs. It is supplied as plain stone mineral wool as standard and can also be supplied with foil encapsulation or with an integral DPC.


The NVFB is designed for use within cavities up to 600mm wide and only requires 5mm of compression when fitting.


Product Details


  • CCPI Verified
  • Cavity Fire Barrier for use at: Compartment Floor, Compartment/Party Walls & Around Openings
  • UL-EU 3rd Party Certification
  • Fire Resistance Classification to EN 13501-2
  • AS1530.4 & AS4072.1 Assessment Report
  • A1 Reaction to Fire
  • Fire Rated up to 120 minutes integrity and insulation (EI120)
  • Suitable for cavities up to 600mm
  • Suitable for use vertically and horizontally
  • Tested for use in conjunction with masonry support brackets
  • Tested with SFS Systems with calcium silicate fibre cement boards
  • Provided in 1 metre lengths
  • Standard thickness/depth of 100mm
  • Available in a reduced thickness/depth of 82mm
  • Optional integral DPC to prevent moisture migration
  • Supplied plain as standard. Optional foil encapsulation available.
  • No maintenance required after installation


Sizes

Cut to Size: 100mm Deep x Width to suit cavity (+5mm for compression fit) x 1000mm


Full Slabs:

100mm x 605mm x 1003mm (available plain or foiled).

100mm x 1000mm x 1200mm (available plain only).

Non-standard 82mm thickness available upon request.

General information

Material

Mineral wool

Shape

Rectangle

Length

1000 mm

Manufacturer guidance

(Total cavity plus 10 mm for compression fit) x 100 x 1000 mm. 

Height

100 mm

Uniclass

Pr_25_80_81_51 Mineral wool fire-stoppingPrimary

CAWS

H92/776 Thermal insulation

P12/360 Mineral wool rigid batts

P12/40 Mineral wool rigid batts

P10/40 Insulation fitted betweenor to the face ofstuds

Specification data - Mineral wool fire-stopping

Material

-

Facing

Mineral wool.

Fire performance

-

Manufacturer guidance

Insert requirements. Up to two-hours (120 minutes) Integrity and Insulation dependent on cavity size and wall construction. Consult manufacturer's literature for more information.

Attachment

2 No. multipurpose (MP) brackets fixed with self tapping
non-corrosive steel masonry anchors.