Certified Confidence in Facade Weatherproofing
Effisus confirms the Effisus ProFlex FR System is fully certified by the British Board of Agrément (BBA) – validating its proven performance as a trusted and high-performance weatherproofing solution for the UK facade industry.
Setting the Standard in Facade Protection
Effisus continues to drive excellence by delivering solutions that combine innovation, compliance, and sustainability. Effisus ProFlex FR System is proof of our dedication to supporting the facade industry with certified, high-quality weatherproofing technologies that meet the sector’s most demanding requirements, with no application restrictions in Higher-Risk Buildings (HRB).
From curtain walls to ventilated facades, precast systems to masonry, Effisus ProFlex FR remains the only membrane system with Fire-Rated Class B able to accommodate the natural movements in the building’s interface being the only alternative to the historically used EPDM solutions.
Certified Features & Benefits
Effisus ProFlex FR System is a highly flexible fire-rated and weatherproofing system, engineered to seal and protect facade interfaces with maximum efficiency and minimal complexity. Designed to meet the real-world challenges of modern construction, Effisus ProFlex FR stands in a league of its own:
- Fire Safety Compliance – Successfully passed the BBA assessment, including testing for flame spread and reaction to fire, ensuring superior protection in critical building zones – Class B – s3, d0 (according to BS EN 13501-1).
- Outstanding Elongation – More than 200% elongation capacity, adaptable to structural movements.
- Proven Performance – Excellent mechanical strength under demanding conditions, resistance to puncture when handling the material at the jobsite.
- Exceptional Properties – Watertight Class W1, the highest classification as per BS EN 1928, and airtight.
- Durable & Versatile – System compatible with a variety of substrates allowing a quick, clean, and secure installation, even in complex geometries.
A Trusted Solution Backed by BBA
The BBA Certification affirms that Effisus ProFlex FR System meets the UK’s highest standards for durability, quality, and fire safety. Designed to perform in demanding facade conditions, the system provides architects, consultants, and contractors confidence in its application across a wide range of facade projects. With BBA certification in place, it stands as a verified solution for protecting building facades while meeting regulatory and environmental demand.




