DERCHI Certified Aluminum Doors and Windows Testing Standards

Our Certificates & Global Compliance

Rigorous international testing, structural certifications, and 100+ national patents ensuring code compliance for developers, architects, and contractors worldwide.

Enterprise Credentials

Verified Performance Backed by Leading Global Test Labs

At Guangdong Dejiyoupin Doors and Windows Co., Ltd., international certification is more than a badge—it is a guarantee of structural safety, acoustic insulation, and thermal efficiency. Our aluminum systems undergo third-party laboratory evaluations to satisfy stringent architectural requirements across North America, Europe, Australia, and the tropical typhoon regions of Southeast Asia.

DERCHI Honors and International Certification Wall
Testing & Compliance

International Architectural Accreditations

Engineered to meet and exceed global fenestration performance benchmarks.

Australia & NZ

AS2047 & AS1288 Standards

Complies with rigorous Australian building codes for window and door structural deflection, air infiltration, and water penetration resistance.

Wind PressureTested to ULS / SLS
Water InfiltrationUp to 450 Pa
Acoustic RatingRw 32 - 42 dB
North America

NFRC & CSA Certified

Certified by the National Fenestration Rating Council (NFRC) and Canadian Standards Association for thermal transmission, solar heat gain, and structural integrity.

U-FactorDown to 0.24 (Btu/h·ft²·°F)
SHGC Rating0.18 - 0.35 Solar Control
Energy EfficiencyEnergy Star Compliant
European Union

CE Conformity (EN 14351-1)

Fully compliant with European harmonized norms for mechanical resistance, airtightness, dangerous substances omission, and load-bearing performance.

Air PermeabilityClass 4 (EN 12207)
WatertightnessClass E900 (EN 12208)
Wind LoadClass C5 (EN 12210)
Severe Weather

Hurricane Impact Certification

Engineered for super-typhoon and coastal hurricane resistance, validated under ASTM E1886 and ASTM E1996 cyclic pressure and missile impact criteria.

Impact LevelLarge Missile Rating (D)
Design PressureUp to +/- 80 PSF
Safety GlazingSGP / PVB Laminated Glass
Quality Management

ISO 9001:2015 Audited

Comprehensive zero-error production processes, from high-grade aluminum alloy extrusion inspection to 100% full-assembly pre-shipment debugging.

Production Scope180,000 m² Base
Quality TraceBarcode Component Tracking
Factory Inspection360° Multi-Stage Check
Thermal & Green

Energy Star Qualified

Optimized polyamide thermal break systems paired with low-emissivity double and triple insulated glazed units, mitigating tropical heat gain.

Thermal StripPA66 GF25 Reinforced
Spacer TechWarm-Edge Technoform
Gas Filling90%+ Argon Gas Retention
25+ Years Experience Proven track record across 18,000+ completed international projects.
Independent R&D Over 30 dedicated architectural engineers holding 100+ patents.
Massive Production 1,000,000 m² annual output supporting fast project delivery.
Global Spec Support Full technical submission packages: CAD shop drawings, test reports & calculations.
DERCHI Patents Background
Proprietary Technology

Over 100 National Utility & Invention Patents

Innovation sits at the center of our manufacturing philosophy. Guangdong Dejiyoupin Doors and Windows Co., Ltd. continuously develops proprietary hardware systems and structural extrusion designs that elevate safety, weather resistance, and operability.

Exclusive Four-Side Six-Point Lock

Patented anti-pry multi-point security hardware system locking around all perimeter sash edges, delivering superior burglar deterrence and uniform gasket compression.

Concealed Sub-Sill Multi-Stage Drainage

Patented high-volume drainage channel preventing monsoon water backflow, even under extreme coastal typhoons with sustained gust pressures exceeding 4,000 Pa.

Reinforced Interlock Profile for Large Spans

Structural mullion designs allowing oversized floor-to-ceiling glass installations while remaining strictly within structural deflection safety limits.

Testing Category Governing Standard Performance Value
Structural Wind Load AS 4055 / ASTM E330 Class C5 / +/- 4,500 Pa
Water Penetration AAMA 501.1 / EN 12208 Zero Leakage at 450 - 900 Pa
Air Infiltration ASTM E283 / EN 12207 < 0.1 m³/(h·m) High Airtight
Sound Transmission ASTM E90 / ISO 10140 STC 36 - 45 dB Performance
Thermal Transmittance NFRC 100 / EN ISO 10077 Uw 1.4 - 1.8 W/(m²·K)
Salt Spray Corrosion ASTM B117 / ISO 9227 1,500+ Hours Exposure Pass

Require Verification Reports or Project Submittals?

Our engineering division supplies certified laboratory test reports, wind pressure calculations, and architectural submittal sets tailored to your regional building code requirements.