Architectural Specification Guide: CE Certified Aluminium Bi-Fold Door Systems
A technical evaluation framework for façade engineers, project specifiers, and B2B procurement managers.
In modern architectural design, Aluminium Bi-Fold Doors (Accordion Folding Systems) serve as a structural bridge between interior luxury and exterior environment. Achieving seamless transition while maintaining rigorous building envelope integrity requires precise mechanical engineering, advanced thermal breaking, and strict adherence to international standards—specifically European Harmonized Standard EN 14351-1:2006+A2:2016.
At Meric Window Systems Co., Ltd., our bi-fold door manufacturing protocol integrates primary 6063-T5 aluminium alloy extrusions with precision polyamide thermal barriers, delivering thermal transmittance values as low as Uw ≤ 1.2 W/(m²·K) when paired with Low-E triple-glazed argon-filled insulated glass units (IGUs).
Key Technical Benchmarks under EN 14351-1
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EN 12207
Air Permeability: Class 4
Tested up to 600 Pa test pressure, preventing unwanted air infiltration in high-rise or exposed coastal installations. -
EN 12208
Water Tightness: Class E900
Resists water penetration under severe driven rain up to 900 Pa static pressure via multi-stage continuous EPDM gaskets and sub-track drainage. -
EN 12210
Wind Load Resistance: Class C5/B5
Deflection ratio less than L/300 under extreme wind loads up to 2000 Pa design pressure, ensuring hurricane-resistant structural performance. -
EN ISO 717-1
Acoustic Performance: Up to 42 dB
Multi-layer acoustic laminated glass configurations significantly reduce ambient urban and environmental noise pollution.