At Guangdong Dejiyoupin Doors and Windows Co., Ltd., quality, structural safety, and thermal performance are engineered into every extrusion, glass package, and assembly. Our window and door systems are tested and certified by accredited global third parties, meeting the exact building regulations required by commercial developers and contractors worldwide.
Complies with EU building regulations covering air permeability, watertightness, structural wind load resistance, and thermal transmittance. Meets rigorous CE standards for energy-efficient commercial and luxury residential developments.
Certified by the National Fenestration Rating Council for energy rating metrics including U-Factor, Solar Heat Gain Coefficient (SHGC), and Visible Transmittance (VT). Essential for high-efficiency buildings and LEED certification support.
Audited and verified against stringent Australian building codes for deflection resistance, positive and negative wind load pressures, water penetration resistance, and safety glazing performance under extreme environmental exposures.
Compliant with Canadian Standards Association criteria for heavy climate durability, freezing-thaw cycles, high wind endurance, and sound dampening. Guarantees tight weatherseals during drastic seasonal temperature variations.
Tested against high-velocity hurricane zones (HVHZ) including missile impact testing, cyclic structural wind pressure, and water barrage. Recommended for tropical storm regions and coastal towers exposed to gale-force winds.
Certified international quality management overseeing raw material sourcing, CNC precision profile machining, insulated glass unit fabrication, multi-point hardware assembly, and final export protective packaging.
Our systems undergo rigorous lab testing to verify exact engineering specifications before shipping to overseas job sites.
| Testing Metric | Test Standard | Performance Achieved | Engineering Advantage |
|---|---|---|---|
| Structural Wind Load | ASTM E330 / AS2047 | Up to 4500 Pa (Serviceability & Safety) | Engineered for high-rise facades and coastal storm zones |
| Water Ingress Resistance | EN 1027 / ASTM E331 | Up to 600 Pa (Static & Dynamic) | Multi-chamber drainage prevents indoor leakage during typhoons |
| Air Permeability | EN 1026 / ASTM E283 | Class 4 / A4 Tightness Standard | Continuous EPDM gaskets minimize heating and AC loss |
| Thermal Transmittance (U-Value) | NFRC 100 / EN ISO 10077 | Down to 1.3 - 1.8 W/m²·K (System U-value) | Polyamide thermal breaks paired with Low-E argon glass |
| Acoustic Insulation (STC) | ASTM E90 / ISO 717-1 | 35 dB - 45 dB Sound Attenuation | Laminated acoustic PVB interlayers reduce urban ambient noise |
| Forced Entry Resistance | Patented Multi-Point Locking | Level 3 Anti-Burglar Tested | Four-Side Six-Point locking hardware prevents pry-bar tampering |
Guangdong Dejiyoupin Doors and Windows Co., Ltd. continuously invests in proprietary architectural designs that solve security, durability, and insulation challenges.
Utility models & exterior design patents
Patented multi-point anti-theft security
Certified by Xinhua News Agency
Audited production and export logistics