Guangdong Dejiyoupin (DERCHI) centralized smart production facility in Nanhai District, Foshan.
Over a quarter-century of fenestration innovation, architectural extrusion, and surface treatment mastery.
Certified compliance including CE, AS2047 (N6 Cyclone), ISO9001, FCC, RoHS, and UL Fire Protection.
In-house structural facade engineers, CAD draftspersons, testing technicians, and multilingual project leads.
Featured Aluminum Doors and Windows for High-Performance Projects
Selecting the proper fenestration assembly demands evaluating structural wind loads, overall heat transfer coefficients (U-Factor / SHGC), sound transmission classes (STC / OITC), and air-water-structural resistance. The following 8 systems represent factory-direct, certified benchmarks manufactured for commercial complexes, luxury high-rises, and modern residential villas worldwide.
Thermal Break Casement Window for Tropical & African Climates
- Profile: 6063-T5 Multi-Cavity Extrusion
- Insulation: PA66GF25 Polyamide Barrier
- Glass: 5mm+12A+5mm Low-E Double Insulated
Soundproof Acoustic Double-Layer Glass Interior French Door
- Acoustic Rating: STC 38dB Isolation
- Sealing: Continuous Perimeter EPDM Gasket
- Sightline: Ultra-Slim Architectural Frame
Hurricane Impact-Resistant Sliding Window System
- Standard: AS2047 N6 & Miami-Dade Criteria
- Impact Glazing: 6mm+1.52PVB+6mm Laminated
- Design Pressure: Exceeds 4500 Pa Windload
Waterproof Balcony-Transforming Attic Skylight Window
- Function: Dual-Action Balcony Conversion
- Water Tightness: Class 9A Pressure Drainage
- Safety: Fully Tempered Toughened Safety Glazing
Heavy-Duty Aluminum Outdoor Pivot Entrance Door
- Thickness: 2.5mm Reinforced Extrusion
- Locking: German Multi-Point Hook Hardware
- Finish: AkzoNobel Fluorocarbon Anti-UV
Concealed Pocket Sliding & Stacking Glass Door System
- Track: Flush Stainless Recessed Guide
- Rollers: Silent Heavy-Duty Bearing Carriage (300kg)
- Operation: Complete In-Wall Cavity Concealment
Casement Window with 304 Stainless Security Mesh Screen
- Security Mesh: High-Tensile 0.8mm King Kong Net
- Hinges: Heavy-Duty Concealed Stainless Friction Stay
- Ventilation: High Aerodynamic Airflow Ratio
Heavy-Duty Commercial Lift-and-Slide Panoramic Patio Door
- Mechanism: Smooth Precision Lift-Slide Gear
- Leaf Capacity: Up to 400kg Per Sash Panel
- Threshold: ADA-Compliant Barrier-Free Sub-Sill
180,000㎡ Intelligent Industrial Base in Foshan, China
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates at the nexus of industrial scale and architectural craftsmanship. Situated in Shishan Town, Foshan—the world’s foremost epicentre of precision aluminum extrusion—our integrated campus consolidates research, profile compounding, CNC five-axis milling, powder and fluorocarbon coating, automated double/triple glazing assembly, and climatic testing bays.
- End-to-End Traceability: Primary architectural aluminum billeting compliant with GB/T 5237 / EN 755 standard alloy tolerances.
- Global Certification Portfolio: Certified AS2047 cyclonic endurance (Australia), CE (EN 14351-1), ISO9001, and UL 10C fire safety.
- B2B Turnkey Consolidation: Consolidate aluminum entry doors, casement windows, acoustic interior sliders, and automated garage systems in one container.
Future Procurement Trends in the Global Fenestration Market
Sourcing fenestration directly from tier-one Chinese manufacturers is evolving beyond unit pricing. Forward-thinking general contractors, architectural specifiers, and commercial developers are prioritizing structural compliance, thermal decarbonization, and smart building integration. Below are the macro trends dominating international tenders through 2030.
Deep Thermal Decarbonization
International building codes (such as ASHRAE 90.1, Title 24, and EU EPBD) demand lower U-values. Multi-chamber thermal break profiles utilizing 24mm to 34mm fiberglass-reinforced polyamide (PA66GF25) struts, paired with warm-edge spacers and argon-filled Low-E triple IGU assemblies, achieve U-values under 1.2 W/m²K, reducing lifetime HVAC carbon output by up to 34%.
Minimalist Sightlines with High Moment of Inertia
Modern architects mandate concealed framing and expanded daylight apertures. Sourcing trends favor heavy-duty 6063-T6 alloys engineered with internal steel sub-stiffeners. This enables interlock sightlines as narrow as 20mm while maintaining high section modulus to withstand violent wind loads across coastal towers and open beachfront villas.
Extreme Weather Resilience & Coastal Metallurgy
With changing climatic patterns, buyers mandate certified AS2047 N6 or ASTM E1886/E1996 missile-impact ratings. Profiles must undergo Qualicoat Class 2 or AAMA 2605 fluorocarbon (PVDF) 3-coat electro-deposition, delivering 3,000+ hours of continuous salt-spray corrosion resistance against coastal saline degradation in regions like South America, Oceania, and the Caribbean.
Technical Specification Matrix for Overseas Project Tenders
Avoid installation mismatches and project delays. Utilize our standardized fenestration procurement matrix to compare profile alloys, hardware configurations, and performance metrics before issuing purchase orders.
| System Parameter | Standard Residential Grade | Commercial & High-End Villa Grade | DERCHI Architectural Specification |
|---|---|---|---|
| Aluminum Alloy & Wall Thickness | 6063-T5 (1.4mm - 1.6mm) | 6063-T5 / T6 (1.8mm - 2.0mm) | Primary 6063-T5/T6 (2.0mm - 3.0mm structural wall) |
| Thermal Break Composition | Standard PVC Strip or Pour-in-Place | 14.8mm Polyamide PA66 Nylon | 24mm - 34mm Technoform PA66GF25 with cellular insulation |
| Insulated Glazing Unit (IGU) | 5+9A+5 Clear Toughened | 5+12A+5 Double Low-E Argon Filled | 6Low-E + 16Ar + 6 Toughened / 6+1.52PVB+6 Laminated Impact |
| Air Infiltration Resistance | ASTM E283 Level 2 (1.5 m³/m²·h) | EN 12207 Class 3 | EN 12207 Class 4 / AS2047 (< 0.1 L/s·m²) |
| Water Penetration Resistance | 250 Pa (Static Head) | 450 Pa (Dynamic Head) | 700 Pa - 900 Pa with stepped concealed drainage channels |
| Hardware & Multi-Point Locks | Generic domestic multipoint locks | Branded multi-point zinc locks | German Siegenia / HOPPE / Roto or custom 304 stainless steel |
| Surface Finish Durability | Basic powder coat (5-year life) | Qualicoat Class 1 (10-year warranty) | Qualicoat Class 2 / AAMA 2605 PVDF Fluorocarbon (25-year) |
How We Configure Fenestration for Destination Environmental Factors
Windows and doors engineered for temperate zones often suffer catastrophic seal failure, thermal warping, or frame pitting when shipped overseas. Our engineering department audits local macro-climatic data prior to shop drawing releases.
High Salinity Coastal Regions
In coastal regions like Santos, Lima, Miami, or Sydney, ocean salt spray attacks standard hardware and fasteners. We utilize 316-grade marine stainless hinges, specialized cathodic isolation gaskets, and electrolytic passivation treatments that halt galvanic reaction between disparate metals.
Intense UV & Solar Radiation
For equatorial Africa, the Middle East, and high-altitude Andean locations, thermal expansion causes sash binding. Our systems integrate expansion-compensation mullion joints, high-elasticity vulcanized EPDM seals, and triple-silver Low-E solar glass that cuts radiant heat by 78%.
Typhoon & Hurricane Shock Fronts
For cyclonic paths across the Caribbean, Florida, and Southeast Asia, our hurricane systems utilize DuPont SentryGlas (SGP) ionoplast interlayers, structural silicone wet glazing, and multi-point wedge deadbolts tested under sustained cyclonic cyclic pressure loads.
Zero-Defect Quality Control & International Testing Accreditations
Every production run undergoes strict dimensional tolerance verification (within ±0.5mm), corner crimp strength assessment (utilizing German corner-joint injection resins), glass hermetic sealing dew-point measurement, and pressure chamber testing.
We provide full documentation for customs brokers and architectural engineers, including comprehensive factory test reports, material traceability mill certs, and valid third-party test data compliant with ABNT NBR (Brazil), NCh (Chile), AS2047 (Australia), and ASTM/AAMA (USA).
Frequently Asked Questions for Global Buyers
Direct and transparent answers to the commercial, logistical, and technical questions international importers, contractors, and developers ask before placing window and door orders in China.
Q How do you prevent frame deflection and corner leakage on oversized windows?
We utilize cast aluminum corner brackets injected with two-component German polyurethane adhesive (Henkel), combined with stainless steel screw alignment pins. Mullions on oversized openings are reinforced with internal structural steel liners calculated through finite element wind-load deflection software (FEA).
Q Can we mix entry doors, sliding windows, and garage systems in a single container?
Yes. As a comprehensive fenestration manufacturer with 180,000㎡ across multiple specialized workshop lines, we regularly consolidate custom luxury cast aluminum entry doors, thermal break casement windows, interior glass French doors, and automatic garage doors into unified export shipping containers.
Q How does DERCHI protect goods during 30 to 50 days of ocean freight?
All products undergo four layers of protective wrapping: (1) low-tack protective film over aluminum profiles, (2) thick pearl-cotton corner buffers, (3) heavy-gauge waterproof thermal shrink-wrap, and (4) fully enclosed fumigation-free plywood crates with internal desiccants to prevent container condensation damage.
Q What is the standard design submittal process prior to fabrication?
Upon deposit confirmation, our engineering department converts your architectural schedules and rough opening elevations into detailed 2D/3D CAD shop drawings, showing exact cross-sections, glass build-ups, anchoring tabs, and sill flashings. Fabrication only commences after your written approval.
Q Do your window and door systems comply with local energy efficiency building codes?
Yes. We engineer customized configurations with calibrated Solar Heat Gain Coefficients (SHGC) and U-factors compliant with North American NFRC benchmarks, European CE directives, Australian NCC energy standards, and South American thermal regulations.
Q How do you handle site installation guidance and hardware replacement warranties?
Each crate includes exploded-view installation manuals, anchor point schedules, and numbered unit matching plans. Our technical engineering division provides scheduled live-video technical assistance aligned with your local time zone, accompanied by a 10-year warranty on aluminum profiles and 5 years on mechanical hardware.
Connect Directly with China’s Leading Fenestration Engineering Team
Whether you are preparing a bill of quantities (BOQ) for an upcoming residential estate, bidding on a commercial hotel facade, or sourcing high-security entry systems, our bilingual facade engineers provide free preliminary CAD take-offs and itemized FOB/CIF quotations within 24 hours.