The Tenmat FF102/50 is a 6mm thick ventilated cavity fire barrier designed for horizontal installation in external wall cavities up to 50mm wide. Its rigid intumescent strip expands rapidly under heat, sealing gaps up to 44mm to block fire and smoke spread. The aluminium foil casing facilitates easy handling and installation, making it ideal for ventilated rainscreen and cladding systems. This barrier maintains airflow under normal conditions and requires no maintenance post-installation.

Tested to BS EN 1363-1 and ASFP TGD19 standards, the FF102/50 provides up to 120 minutes of fire integrity and insulation. It holds third-party certification from IFC and is CCPI verified. Each strip measures 1000mm × 75mm × 6mm and weighs approximately 0.88 kg. Installation involves stainless steel fixings at 250mm centres. Suitable for masonry, timber frame, and SFS constructions, it offers a durable, compliant solution for passive fire protection.

Key Features

Tenmat
Insulation

The Tenmat FF102/50 is a 6mm thick ventilated cavity fire barrier designed for horizontal installation in external wall cavities up to 50mm wide. Its rigid intumescent strip expands rapidly under heat, sealing gaps up to 44mm to block fire and smoke spread. The aluminium foil casing facilitates easy handling and installation, making it ideal for ventilated rainscreen and cladding systems. This barrier maintains airflow under normal conditions and requires no maintenance post-installation.

Tested to BS EN 1363-1 and ASFP TGD19 standards, the FF102/50 provides up to 120 minutes of fire integrity and insulation. It holds third-party certification from IFC and is CCPI verified. Each strip measures 1000mm × 75mm × 6mm and weighs approximately 0.88 kg. Installation involves stainless steel fixings at 250mm centres. Suitable for masonry, timber frame, and SFS constructions, it offers a durable, compliant solution for passive fire protection.

Key Features

Tenmat
Insulation
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Tenmat

Tenmat FF102/50 Fire Rated Ventilated Cavity Fire Barrier - 1000×75x6mm

£29.00
1m FF102/50 cavity barrier for 50mm voids. Blocks fire and smoke while allowing ventilation. Certified to BS 476 Part 20.

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The Tenmat FF102/50 is a 6mm thick ventilated cavity fire barrier designed for horizontal installation in external wall cavities up to 50mm wide. Its rigid intumescent strip expands rapidly under heat, sealing gaps up to 44mm to block fire and smoke spread. The aluminium foil casing facilitates easy handling and installation, making it ideal for ventilated rainscreen and cladding systems. This barrier maintains airflow under normal conditions and requires no maintenance post-installation.

Tested to BS EN 1363-1 and ASFP TGD19 standards, the FF102/50 provides up to 120 minutes of fire integrity and insulation. It holds third-party certification from IFC and is CCPI verified. Each strip measures 1000mm × 75mm × 6mm and weighs approximately 0.88 kg. Installation involves stainless steel fixings at 250mm centres. Suitable for masonry, timber frame, and SFS constructions, it offers a durable, compliant solution for passive fire protection.

Key Features

  • Made in the UK
  • Fire-rated up to 120 minutes
  • Suitable for 50mm ventilated cavities
  • Tested to BS 476 Part 20
  • Vertical or horizontal installation

Description

The Tenmat FF102/50 is a 6mm thick ventilated cavity fire barrier designed for horizontal installation in external wall cavities up to 50mm wide. Its rigid intumescent strip expands rapidly under heat, sealing gaps up to 44mm to block fire and smoke spread. The aluminium foil casing facilitates easy handling and installation, making it ideal for ventilated rainscreen and cladding systems. This barrier maintains airflow under normal conditions and requires no maintenance post-installation.

Tested to BS EN 1363-1 and ASFP TGD19 standards, the FF102/50 provides up to 120 minutes of fire integrity and insulation. It holds third-party certification from IFC and is CCPI verified. Each strip measures 1000mm × 75mm × 6mm and weighs approximately 0.88 kg. Installation involves stainless steel fixings at 250mm centres. Suitable for masonry, timber frame, and SFS constructions, it offers a durable, compliant solution for passive fire protection.

Key Features

  • Made in the UK
  • Fire-rated up to 120 minutes
  • Suitable for 50mm ventilated cavities
  • Tested to BS 476 Part 20
  • Vertical or horizontal installation

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Built for Cavity Fire Protection

The FF102/50 barrier is engineered for 50mm ventilated voids. It provides a 44mm clear air gap while maintaining critical fire resistance. Its slim profile fits into rainscreen façades and timber frame cavities without blocking airflow in normal conditions.
When exposed to heat, the intumescent material expands to seal off air paths. This helps slow fire spread through hidden voids. Each barrier comes in a 1m length for fast, accurate installation during early or retrofit phases.

Compliant with UK Fire Testing Standards

Tested by Chiltern International Fire, the FF102/50 complies with BS 476 Part 20: 1987. It’s designed to be fixed against OSB-faced timber construction, providing 30–60 minutes of certified fire resistance performance.

Simple Installation with No Specialist Tools

The barrier is lightweight and installs using friction-fit or mechanical fixing. No adhesives or sealants are required. Its flexibility helps reduce fit time on site while maintaining solid contact with cavity surfaces.

Effective in Any Cavity Orientation

Whether installed horizontally or vertically, the FF102/50 adapts to structural layouts. It works around junctions, gaps, or over services, helping maintain a continuous fire seal along the cavity line.

Supports Fire Board Insulation Compliance

Designed to complement other fire-rated products, this cavity barrier fits within a full insulation strategy. It performs alongside timber substrates and fire-rated boards, helping meet regulatory fire protection requirements.

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Tenmat FF102/50 Fire Rated Ventilated Cavity Fire Barrier - 1000×75x6mm - Armstrong Cheshire
Tenmat

Tenmat FF102/50 Fire Rated Ventilated Cavity Fire Barrier - 1000×75x6mm

£29.00

The Tenmat FF102/50 is a 6mm thick ventilated cavity fire barrier designed for horizontal installation in external wall cavities up to 50mm wide. Its rigid intumescent strip expands rapidly under heat, sealing gaps up to 44mm to block fire and smoke spread. The aluminium foil casing facilitates easy handling and installation, making it ideal for ventilated rainscreen and cladding systems. This barrier maintains airflow under normal conditions and requires no maintenance post-installation.

Tested to BS EN 1363-1 and ASFP TGD19 standards, the FF102/50 provides up to 120 minutes of fire integrity and insulation. It holds third-party certification from IFC and is CCPI verified. Each strip measures 1000mm × 75mm × 6mm and weighs approximately 0.88 kg. Installation involves stainless steel fixings at 250mm centres. Suitable for masonry, timber frame, and SFS constructions, it offers a durable, compliant solution for passive fire protection.

Key Features

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