Discover illbruck’s fire rated membranes designed for external wall applications across the UK & Ireland. Compliant with EN 13501-1 Class B-s3, d0 & ADB regulations.
When selecting fire rated membranes for construction projects across the UK and Ireland, architects, specifiers, and main contractors must take extra precautions to ensure the correct system is chosen for its intended function. illbruck offers a comprehensive range of high-performance membranes designed to meet the latest fire safety regulations and building standards.
Recent updates to Approved Document B (ADB) now require that any membranes applied to external walls of relevant and in-scope buildings in England must achieve a minimum reaction to fire rating of Class B-s3, d0 in accordance with EN 13501-1. This ensures enhanced fire performance and regulatory compliance for facade and wall applications.
While membranes are not designed to act as fire stopping materials, they must still meet the stringent requirements outlined in ADB and the UK building code of practice. A Class A rating is not required, but Class B-s3, d0 is essential for safety and compliance.
As a trusted construction products manufacturer, illbruck provides a range of fire rated breathable membranes and vapour control layers that exceed current building regulations. Each product is independently tested and fully certified, giving specifiers and contractors confidence in their selection.
illbruck’s membrane systems offer superior weather protection, air leakage control, and fire safety performance. Whether used in high-rise buildings, facade systems, or external wall assemblies, our solutions are engineered for demanding environments where fire resistance is critical.
Browse our selection of fire rated membranes, including:
✅Class A Fire Rated Membranes
✅Class B Fire Rated Membranes
✅Fire Rated Sealants
Each product is designed to support safe, compliant, and efficient building envelope design.
What fire rating do illbruck membranes achieve?
All illbruck fire rated membranes meet or exceed Class B-s3, d0 under EN 13501-1.
Are these membranes suitable for high-rise buildings?
Yes, they are designed for use in ADB-compliant external wall systems, including high-rise and in-scope buildings.
Can I use these membranes with illbruck adhesives?
Absolutely. Products like SP025 Fire Membrane Adhesive are formulated to work seamlessly with our membrane systems.
Fire Rated Membranes - In Practice
Ensuring the challenge of delivering a fit for purpose fire rated membrane is achieved, requires a variety of solutions tailored to meet the individual project requirements. Our specification and technical team are on hand to ensure that installation and application of selected fire rated membranes are well matched and successfully installed.
Explore our project case studies and technical insights for more information.
Specifying Breather Membranes
Selecting the correct type of membrane and its position in a wall build-up is vitally important, especially when meeting the fire requirements of the Building Regulations, due to a building’s height or use. Read more now...
Specifying Our Products Just Got Easier
NBS source gives you the ability to specify Illbruck’s products in several workflows. It provides a single source of construction product information presented in a consistent and structured format, enabling architects to find, select and specify products to project workflows.
Explore our range and simply click "add to spec"to start the seamless specification process today.
Visualise our fire rated membranes in situ...
Explore the below 3D model, which highlights a standard A class membrane configuration behind a brick façade.
These membranes form part of the only complete range of compliant, tested, and compatible façade building protection products. illbruck's recently launched range of FR membranes ensures that there is a suitable solution for all applications - all available from a single source supplier. Experts in the field of façades, with over 75 years of experience, the illbruck team is on hand to support with your project enquiries or provide on-site technical and installation training where required.
Our support doesn't stop there...
Our specification team are on hand to support at every stage of your construction project and we understand the importance of finding the best value, lowest risk solution which exceeds your project requirements. From on-site support and surveys, as well as a full suite of training courses from the Tremco CPG UK Training Academy, we are here to help you.
Our team can support you with specification writing, site audits, advice tools and more. Talk to our experienced and knowledgeable technical team for support with your next project.
Explore our services
The Tremco CPG UK Training Academy provides a range of online and in-person training sessions which are aimed at making your journey through the complex world of construction easier.
Learn with the experts