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Cavity barrier

Firebreather™ Cavity barrier allows compartmentation of the cavity behind the façade cladding and hence prevent the spread of fire.

FB Cavity Barrier, Securo has developed a new set of applications specially designed for establishing vented fire barriers in voids or cavities behind the cladding on façades or inside fire rated walls and floors.

FB Cavity Barrier provide ample ventilation of construction yet instantly prevent fire from spreading. These are the only products available for uncompromising fire safe venting of voids and cavities in constructions.

The cavity barrier does not close the cavity when it is installed, but allows the necessary venting behind the façade cladding. In the event of a fire, the product closes the air gap and prevents fire from spreading.

FB Cavity Barrier is a fully passive vent design, i.e. it contains no moving parts, no detector activating system and no cabling.
The fire barrier protects against direct flaming, leap frog fire, sustained fire, deflagration of ignition of un-burnt gas to protected side.

The FB Technology employs multiple mechanisms of heat transfer blocking of fire to instantly prevent fire spread. No ignition will be possible at the unexposed side from the first millisecond throughout the fire rating period.
The design maximizes convective heat transfer by hot gases to solid surfaces. As hot gases are cooled, intumescent material is heated accordingly. Solid components act as secondary heat sinks efficiently cooling the smoke temperature below ignition temperatures of typical fuels until intumescent sealing is completed. Insulating parts and air gaps are carefully designed for thermal break performance.

FB Cavity Barrier are made solely from non-corrosive materials and do not need any routine testing or maintenance to ensure that they
perform satisfactory in case of fire.

Read more about fire resistance classes

FB Cavity barriers:

  • Solves the need for firesafe venting in an easy and cheap way
  • Ensures necessary venting
  • Instantly blocks fire spread in cavities
  • Fully passive
  • Long lifespan
  • Easy assembly
  • Fire resistance  EI30 / EI60 / EI90

Teststandards:

  • EN 1366-4:2006
  • ASTM2912 – Direct flame test
  • SP105 façade test – Third party
  • Lepir2 façade test – Third party
  • BS8414 façade test – Third party

Applications:

  • Behind ventilated façade cladding
  • Vents in the roof / attic
  • Floor separates
  • Other cavities in the structure

The product combines:

  • Neccessarry ventilation
  • Fire cell limiting construction
  • Prevention mice and pests from entering the construction

Feel free to contact us if any questions


VIDEO

Test done to compare our cavity barrier and a competing cavity barrier.
Securo cavity barrier is installed on the two films to the left side, while the competing product is installed on the two films on the right side.

While we see that our cavity barrier stops the flames from the first second, we see that the competing product let flames pass through for quite a long time before it closes.

During this period, fire will spread throughout the cavity and ignite any combustible material and even if it is only non-combustible materials, the chimney effect can result in fire spreading upwards through the opening at the top of the cavity.

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Specifications

Available sizes and fireclasses
Sizes Fireclass Article number Nobbnr.
23mm - 113 cm length EI30  FBH-23-1000-30 43745796
23mm - 53 cm length EI30  FBH-23-500-30 54382746
23mm - 113 cm length EI60  FBH-23-1000-60 43745815
23mm - 53 cm length EI60  FBH-23-500-60 54382765
28/30mm - 113 cm length EI30 FBH-28-1000-30 43745845
28/30mm - 53 cm length EI30 FBH-28-500-30 54382792
28/30mm - 113 cm length EI60 FBH-28-1000-60 43745853
28/30mm - 53 cm length EI60 FBH-28-500-60 54382803
36mm - 113 cm length EI30 FBH-36-1000-30 43745902
36mm - 53 cm length EI30 FBH-36-500-30 54382822
36mm - 113 cm length EI60 FBH-36-1000-60 43745921
36mm - 53 cm length EI60 FBH-36-500-60 54382837

The concept

Firebreather technology (FB) is a unique concept for the development of passive ventilation grilles which has the exceptional characteristic that they block the spread of flames, heat and embers with immediate effect in the case of fire.

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Our products

Cavity barrier

Façade vent

Air Transfer Grilles

Eaves Vent

Gap Vent