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The market-leading, environmentally friendly cavity closer with cavity fire barrier for exceptional fire protection

Fire remains a real and constant threat to any building and that’s why it’s vital that all the necessary precautions are implemented. When you specify FlameBlok, you’re installing a continuous ring of fire protection around openings in cavity walls. As the first fully test fire-rated cavity closer for cavities greater than 100mm and the only fire-rated closer manufactured entirely from post-consumer recycled UPVC, FlameBlok stands for the next generation in sustainable fire protection.

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Cavalok FlameBlok

FlameBlok benefits at a glance:

Peace of mind
High-performance passive fire protection for up to 90 minutes

Sustainable solution
Manufactured from 100% post-consumer recycled UPVC and high-density fire-resistant mineral wool

Superior performance
Creates a continuous ring of fire protection around cavity wall openings

Range of sizes
Widest range available in a fire-rated closer – for cavities 50-150mm wide

Simple installation
Quick and easy to fabricate and fit – no additional fire socks required

Improved fire protection
Perfect for high-risk timber-framed buildings or commercial developments

Industry standards
Fully approved by BBA and NHBC and complaint with latest Building Regs.

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