OPERFECT PVEK™ B2066 Successfully Achieves EN 13501-1 B-s1,d0 Fire Classification
A New Milestone in High-Performance Building Envelope Innovation
July 2026 | Jinan, China
OPERFECT® proudly announces that its proprietary PVEK™ B2066 Fire-Resistant Flash-Spun HDPE Breather Membrane has successfully achieved EN 13501-1 Class B-s1,d0 fire classification through independent testing conducted by SGS. This achievement marks another significant milestone in OPERFECT’s continuous investment in Building Envelope technologies and further strengthens the company’s position as a professional manufacturer of high-performance building protection materials. According to the SGS report, the tested product achieved Class B-s1,d0 in accordance with EN 13501-1:2018, based on testing under EN 13823 and EN ISO 11925-2.
Meeting the Growing Demand for Fire-Safe Building Envelope Systems
Across Europe and many international construction markets, building regulations continue to place greater emphasis on fire safety, energy efficiency and long-term durability.
For modern wall assemblies, breathable membranes are expected to do much more than resist water. They must effectively manage moisture, withstand harsh weather conditions and increasingly satisfy higher fire performance requirements.
Developing a Flash-Spun HDPE membrane that maintains excellent weather resistance and vapor permeability while achieving a higher fire classification has long been regarded as one of the most technically challenging tasks within the industry.
The successful certification of PVEK™ B2066 demonstrates OPERFECT’s ongoing commitment to solving these engineering challenges through continuous research and material innovation.
Independently Tested to EN 13501-1 Class B-s1,d0
PVEK™ B2066 was independently evaluated by SGS according to the European fire classification standard EN 13501-1:2018.
The testing included:
- EN 13823
- EN ISO 11925-2
The final classification achieved:
EN 13501-1 Class B-s1,d0.
This result provides architects, façade engineers, distributors and contractors with greater confidence when selecting breathable membranes for projects requiring enhanced fire performance.
Introducing PVEK™ B2066
PVEK™ B2066 is OPERFECT’s latest generation Fire-Resistant Flash-Spun HDPE Breather Membrane, engineered specifically for high-performance Building Envelope applications.
Key features include:
- Flash-Spun HDPE technology
- Excellent vapor permeability
- Reliable weather and wind protection
- High water resistance
- EN 13501-1 Class B-s1,d0 fire classification
- Long-term durability
- Lightweight construction
- Designed for demanding wall protection systems
Together, these characteristics enable designers to improve both building durability and occupant safety without compromising moisture management performance.
Developed for Modern Construction
PVEK™ B2066 is designed for a broad range of applications, including:
- Residential buildings
- Timber frame construction
- Steel frame buildings
- Commercial façades
- Energy-efficient buildings
- Passive house systems
- Industrial buildings
- Modern wall and roof assemblies
As global construction standards continue to evolve, high-performance breathable membranes are becoming an increasingly important component within complete Building Envelope systems.
From PVEK™ B1060 to PVEK™ B2066
The successful certification of PVEK™ B2066 represents another important milestone in the continuous evolution of the PVEK™ Flash-Spun HDPE product family.
Following the successful introduction of PVEK™ B1060, the new fire-resistant version further expands OPERFECT’s capability to provide customers with differentiated solutions tailored to regional regulations, project requirements and building performance objectives.
This achievement also reflects OPERFECT’s long-term commitment to independent product development rather than simple product replication.
Building Envelope Innovation Continues
At OPERFECT, we believe advanced building materials should solve real construction challenges.
Instead of offering isolated products, we continue building a comprehensive Building Envelope platform covering:
- Flash-Spun HDPE House Wrap
- Breathable Membranes
- PP Woven House Wrap
- Synthetic Roofing Underlayments
- Ice & Water Shield Membranes
- Reflective Vapor Barrier Systems
- Thermal Insulation Facings
- HVAC Insulation Materials
- Acoustic Building Materials
By integrating engineering, manufacturing and application expertise, we help customers simplify procurement while improving overall building performance.
Looking Ahead
The successful certification of PVEK™ B2066 is another milestone in OPERFECT’s long-term innovation journey.
As building standards continue to advance, we will remain focused on developing safer, more durable and more energy-efficient Building Envelope materials for customers around the world.
Innovation is not a single achievement—it is a continuous commitment.
About OPERFECT®
OPERFECT® is the global flagship brand operated by Jinan United Perfect Building Materials Corporation, specializing in Building Envelope, Thermal Insulation, Acoustic and HVAC insulation solutions.
With more than twenty years of manufacturing experience, OPERFECT serves distributors, contractors, insulation manufacturers and private-label partners across North America, Europe, Australia, the Middle East, South America and Asia.
Through continuous investment in engineering, manufacturing and advanced material technologies, OPERFECT remains committed to helping customers build safer, longer-lasting and more energy-efficient buildings.
United Perfect Group，To Make Buildings Perfect, Together.
Global Business Director: Mr. Du
WhatsApp / WeChat: +86 134 2613 0536
Email: export@unitedperfect.com
Website: www.unitedperfect.com
