Flamro Firebreather Cavity Barrier

October 26, 2026

Cavity barriers are an important consideration in building designs where concealed spaces could allow fire and smoke to spread. In ventilated facade systems, the challenge is to address fire protection requirements while accommodating the ventilation needed by the facade design.


The Flamro Firebreather Cavity Barrier is designed for specified applications involving ventilated facades and other suitable cavity arrangements.


What is the Flamro Firebreather Cavity Barrier?

The Firebreather Cavity Barrier is a passive fire protection product incoporating stainless steel mesh and intumescent material.


The system is designed to allow ventilation under normal conditions while responding to fire exposure to help seal the relevant cavity, in accordance with its tested performance.


Where can it be used?

The manufacturer's product information identifies applications including suitable ventilated facade cavaties, seperation areas between floors and certain roof of ceiling ventilation gaps.


The exact permitted applications depend on the system specification, supporting construction and installation details.


What should you consider when specifying a cavity barrier?

When selecting a cavity barrier, consider:

  1. The facade or cavity construction
  2. The cavity dimensions and ventilation requirements
  3. The position of compartment floors and walls
  4. The required fire-resistance classification
  5. The tested installation details and supporting technical documentation


Choosing a product with the correct application evidence is essential. Fire-resistance classifications must be checked against the specific system and configuration rather than assumed to apply universally.


Blazeout supplies passive fire protection products to contractors and firestopping specialists, helping simplify the sourcing of materials for construction projects.


Explore our Flamro Firebreather Cavity Barrier product page or contact our team for information about availability and pricing.

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