VFB Plus - Ventilated Cavity Fire Barrier
Verified by manufacturer 6 months ago
IFCC
Certificate type
Cavity fire barriers for ventilated cavities of up to 450 mm.
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:
- CCPI Verified
- 3rd Party Certification - IFC Certification
- Typical Fire Ratings of minimum 30 to 60 minutes Integrity and Insulation
- Higher Fire Ratings available dependent on application
- Fire Tested on Timber Frame Systems
- Fire Tested on Steel Frame Systems (SFS)
- 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 Guidance for specification option: Sleeve. Intumescent |
Shape | Rectangle |
Length | 1000 mm |
Width | 75 mm |
Height | Manufacturer guidanceThickness (total cavity less 44 mm air gap). |
Uniclass | |
CAWS | H92/776 Thermal insulation P10/420 Sleeved mineral wool small cavity barriers P10/435 Ventilated cavity barriers P10/70 Sleeved small 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 | Manufacturer guidanceMinimum 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. |
Material | Mineral wool section, polythene sleeved with continuous intumescent strip fixed to leading edge. |
Thickness | 75 mm. |
Cavity width | Manufacturer guidanceSuitable for cavities of up to 450 mm; insert requirements. |
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.Guidance for specification option: Cavity size 40–120 mm; Product width 16–76 mm. Multipurpose (MP) 65 mm brackets, 2 no. per metre, 500 mm centres (maximum).Guidance for specification option: Cavity size 101–134 mm; Product width 77–90 mm. Multipurpose (MP) 160 mm brackets, 2 no. per metre, 500 mm centres (maximum).Guidance for specification option: Cavity size 135–240 mm; Product width 91–215 mm. Multipurpose (MP) 160 mm brackets, 3 no. per metre, 350 mm centres (maximum).Guidance for specification option: Cavity size 241–300 mm; Product width 216–255 mm. High performance (HP) 328mm brackets, 2 no. per metre, 500 mm centres (maximum).Guidance for specification option: Cavity size 300-450 mm; Product width 256-406 mm. |
BIM objects
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
Third party certifications
IFCC
VFB Plus - Ventilated Cavity Fire Barrier 3rd Party Certification
Literature
VFB Plus - Ventilated Cavity Fire Barrier Datasheet