Introducing FlameOut Breathe Class A – Our high-performance fire-rated breather membrane

An enhanced fire-rated solution for external walls, facades and ventilated rainscreen systems.

ITP is pleased to introduce the latest addition to its range of specialist breather membranes: FlameOut Breathe Class A. Developed for demanding external wall applications, this heavyweight membrane combines enhanced fire performance with dependable moisture management and high mechanical strength.

What Is FlameOut Breathe Class A?

FlameOut Breathe Class A is a heavyweight, woven, vapour-permeable and water-resistant breather membrane designed for wall installations where enhanced fire performance is required. Installed on the cold side of the insulation, it allows water vapour to pass outwards while helping to protect the building envelope from external moisture. Its high-strength construction makes it well suited to demanding façade, cladding and ventilated rainscreen applications.

FlameOut Breathe Class A has been independently tested to EN 13501-1 and is classified at A2-s1,d0 when free-hanging.

Key Features and Technical Performance

Reaction to fire: classified A2-s1,d0 to EN 13501-1 when free-hanging.
Water resistance: Class W2 to EN 1928.
Vapour permeability: supports outward drying and effective moisture management in insulated wall systems.
Heavyweight woven construction: provides robust handling and high tensile strength during installation.
Mechanical performance: High tensile strength helps the membrane withstand demanding site conditions.
Durability: developed for long-term performance in suitable façade applications.
Certification: Declaration of Performance available on request.

Where Can FlameOut Breathe Class A Be Used?

FlameOut Breathe Class A is intended for external wall construction on all buildings including those 11m or higher, including safety-critical façade, cladding and ventilated rainscreen applications. All laps, interfaces and corners should be securely sealed using the specified proprietary fire-rated FlameOut jointing tape to help maintain the required weather resistance, airtightness and fire performance of the complete project.

Supplied in 1.55 m × 50 m rolls, FlameOut Breathe Class A is available to order now. Contact the ITP sales team to place an order or request the latest product information, technical guidance, specification support and availability details.