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VFB Plus - Ventilated Cavity Fire Barrier

VFB Plus - Ventilated Cavity Fire Barrier

Verified by manufacturer 10 days ago

Tenmat Limited Third party certifications:
  • IFCC

    IFCC

    Certificate type

Cavity fire barriers for ventilated cavities of up to 450 mm.

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+44 (0)161 8722181 https://www.tenmat.com/

Application

To suit cavities from 60 mm up to 450 mm.

Description

Tenmat’s VFB Plus Ventilated Fire Barriers are ’open state’ cavity fire barriers for ventilated cavities of up to 450mm.


Each VFB Plus consists of a specially formulated fire rated stone mineral wool section with an integral high expansion intumescent seal fixed to the leading edge.


The VFB Plus then leaves a maximum 44mm air gap to allow for drainage and maintain ventilation in normal use. In a fire situation the intumescent seal rapidly expands to seal off the air gap and prevent vertical fire spread within the external wall.


The product has undergone extensive fire testing following the principles of BS EN1363-1 and in accordance with ASFP TGD19 (Fire Resistance Test for ‘Open-State’ Cavity Barriers).


The VFB Plus are mechanically fixed horizontally within ventilated cavities behind the external wall substrate following the fire compartment line.


The VFB Plus are used horizontally and can be installed in conjunction with Tenmat NVFB Non-Ventilated Fire Barriers which provide vertical fire separation along fire compartment party wall lines.


Features and benefits:

  • 3rd Party Certification - IFC Certification
  • Typical Fire Ratings of minimum 30 to 60 minutes Integrity and Insulation
  • Higher Fire Ratings available dependent on application
  • Maintains a 44mm air gap
  • Up to 450mm cavities tested
  • Standard thickness of 75mm
  • Durability and Age Tested
  • Fixing brackets included as standard

General information

Color

Red

Material

Mineral wool

Polythene

Sleeve.

Intumescent

Shape

Rectangle

Length

1000 mm

Width

75 mm

Height

Thickness (total cavity less 44 mm air gap).

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Uniclass

Pr_25_80_80_44 Intumescent sleeved mineral wool cavity fire barriersPrimary

CAWS

P10/435 Ventilated cavity barriers

P10/77 Ventilated cavity barriers

Specification data - Intumescent sleeved mineral wool cavity fire barriers

Standard

Tested and certified in accordance with ASFP Technical Guidance Document TDG19.

Fire performance

Minimum 30 to 60 minutes integrity BS EN 1363-1 and to the principles of ASFP TGD19, dependant on wall construction. Consult manufacturer and insert requirements.

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Material

Mineral wool section, polythene sleeved with continuous intumescent strip fixed to leading edge.

Thickness

75 mm.

Cavity width

Suitable for cavities of up to 450 mm; insert requirements.

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Air gap

44 mm.

Attachment

Stainless steel countersunk head screws, maximum head diameter 11.5 mm, length to suit cavity barrier and substrate. 4 no. screws per linear metre.

Cavity size 40–120 mm; Product width 16–76 mm.

Multipurpose (MP) 65 mm brackets, 2 no. per metre, 500 mm centres (maximum).

Cavity size 101–134 mm; Product width 77–90 mm.

Multipurpose (MP) 160 mm brackets, 2 no. per metre, 500 mm centres (maximum).

Cavity size 135–240 mm; Product width 91–215 mm.

Multipurpose (MP) 160 mm brackets, 3 no. per metre, 350 mm centres (maximum).

Cavity size 241–300 mm; Product width 216–255 mm.

High performance (HP) 328mm brackets, 2 no. per metre, 500 mm centres (maximum).

Cavity size 300-450 mm; Product width 256-406 mm.

Digital objects

Platform Compatible Version Certified to
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Literature

VFB Plus - Ventilated Cavity Fire Barrier Datasheet

VFB Plus - Ventilated Cavity Fire Barrier Datasheet

Third party certifications

IFCC

IFCC

VFB Plus - Ventilated Cavity Fire Barrier 3rd Party Certification

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