PFC Corofil COSB 25 Open-State Cavity Barrier
PFC Corofil COSB 25 is an open-state stone wool cavity barrier for ventilated facade systems with a 25mm air gap. The integral high-expansion intumescent strip reacts to fire and closes the ventilation space.
Description
PFC Corofil COSB 25 Open-State Cavity Barrier maintains a smaller continuous drainage and ventilation route under normal conditions, then expands across the 25mm gap when exposed to heat.
Key features
- Designed for a 25mm open ventilation gap
- Non-combustible high-density stone wool body
- Pre-fixed graphite-based high-expansion intumescent strip
- Suitable for approved ventilated facade and rainscreen constructions
- Multiple wrapping and bracket options available to suit the specification
Typical applications
Use at approved horizontal compartment lines in ventilated facade cavities where the design calls for a 25mm open-state air path.
Installation note: Keep the required gap continuous, install the correct support brackets and follow the tested orientation and fixing centres for the actual substrate.
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