Thermal Core
Factory Direct Portfolio
Precision-Engineered Architectural Systems
Explore our precision structural systems engineered to integrate seamless thermal timber profiles with heavy-duty fluorocarbon-coated exterior aluminum cladding for high-end residential and commercial architecture.
Acoustic Shield
Minimalist Spec
5-Year Warranty
Ventilation Tech
Crittall Heritage
Slim French Line
Heavy Security
Manufacturing Excellence
25+ Years of Engineering Precision in Foshan's Global Industrial Core
As Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI), operating out of the world capital of fenestration manufacturing in Foshan, China, we have established an international standard for structural timber-clad aluminum window and door systems. Combining old-world timber craftsmanship with cutting-edge German multi-axis CNC fabrication, our systems resolve the fundamental architectural dilemma: pairing warm, organic interior woodwork with weather-resilient, corrosion-proof exterior aluminum barriers.
Our composite cladding engineering prevents structural twisting, thermal bridging, and joint failure under extreme climatic shifts—from high-humidity tropical coastlines to arid, high-UV environments.
- Laminated Finger-Jointed Timber: Multi-layer cross-grain lamination (European Oak, Larch, Red Oak) kiln-dried to an exact 8%–12% moisture equilibrium.
- Decoupled Nylon Composite Clip System: Eliminates contact friction between timber and aluminum, accommodating differential thermal expansion rates.
- Structural Multi-Point Gasket Sealing: Continuous EPDM foam-gaskets providing class-leading air tightness and water exclusion ratings.
25+
Years Engineering Track Record
180,000㎡
Intelligent Production Facility
600+
Master Craftsmen & Engineers
100+
Patents & Global Standards
Architectural Evolution
Technological Development Trends in Modern Wood-Alu Systems
The engineering specifications for aluminium clad timber systems are shifting rapidly. High-performance building envelopes now demand carbon neutrality, passivhaus thermal barriers, and ultra-slender sightlines.
Passivhaus Thermal Separation
Standard aluminum-wood combinations often suffer from edge conduction. Next-generation systems integrate structural aerogel isolators, low-conductive polyamide spacers, and multi-chambered insulating cores to achieve overall window heat transfer coefficients below Uw ≤ 0.8 W/(m²·K), meeting the strictest European and North American low-carbon guidelines.
Architectural Flush Minimalism
Traditional wood-alu windows presented chunky frames. The modern market trend heavily favors coplanar flush sash designs, zero-sightline outer cladding, and fully concealed heavy-duty hinges capable of handling individual sash glass weights exceeding 400kg without dynamic sag or deflection over decades of operation.
High-Salinity Marine Cladding
For coastal and humid deployments, standard powder coating quickly deteriorates. Advanced manufacturing incorporates Qualicoat Class 2 and Class 3 Super-Durable polyesters alongside PVDF (Fluorocarbon) finishes, achieving a minimum 30-year resistance against micro-cracking, gloss loss, and galvanic corrosion under salty maritime exposure.
Global Sourcing Dynamics
Procurement Foresight: Navigating Global Supply Chains
For real estate developers, structural contractors, and commercial glazing distributors, procurement strategies for clad wood systems have moved beyond basic per-square-meter cost calculations.
| Structural Dimension | Conventional Market Specs | DERCHI Engineered Benchmark | Procurement Benefit |
|---|---|---|---|
| Timber Curing & Splicing | Air-dried solid cut timber, uneven grain | 4-Layer cross-directional laminated heartwood (8-10% kiln dried) | Zero warping, anti-twist under heavy thermal load |
| Thermal Transmittance (Uw) | 1.4 - 1.8 W/(m²·K) | Down to 0.76 W/(m²·K) with Triple-Glaze Low-E & Argon | Net-zero building code qualification |
| Exterior Metal Wall Thickness | 1.2 mm - 1.4 mm commercial alloy | ≥ 2.0 mm 6063-T6 virgin architectural aluminum alloy | Extreme wind-load deflection resistance up to N6 |
| Clip Coupling Mechanism | Rigid screws / glued channels | Floating dynamic POM/PA66 engineered nylon clips | Absorbs seasonal thermal shift differences completely |
| Acoustic Attenuation (Rw) | 30 - 34 dB | Up to 46 dB with acoustic PVB lamination | Hospital-grade urban noise isolation |
Direct-from-Source CAD Engineering
Tier-1 procurement mandates factory-generated BIM and CAD parametric shop drawings before profile extrusion begins. Our in-house engineering team provides free comprehensive CAD submittal packages to eliminate costly on-site rough opening discrepancies.
Containerized Mixed Project Consolidation
Developers increasingly demand whole-envelope sourcing from a single accountable entity. DERCHI consolidates aluminium clad timber window packages alongside entry pivot doors, interior timber doors, and structural curtain walls in unified ocean containers to minimize landed freight overhead.
Certified Testing Portfolio Verification
Regulatory scrutiny across the Americas, Oceania, and the EU requires auditable proof. We supply accredited compliance packages spanning CE, ISO9001, AS2047 (Australian N6 cyclonic testing), and UL fire-rating certificates directly to your structural team.
Factory Pedigree
Why DERCHI Outperforms Standard Suppliers
Choosing an overseas fenestration partner is an exercise in risk mitigation. Learn how our manufacturing infrastructure guarantees seamless project execution from concept to port clearance.
One-Stop Envelope Systems
Eliminate multi-vendor coordination conflicts. Source custom wood-alu systems, expansive pivot doors, acoustic interior doors, and security roller shutters under one warranty.
Strict Code Validation
Certified to international building standards: CE, ISO9001, AS2047, and UL fire benchmarks, backed by certified wind-load and moisture-penetration test data.
Turnkey CAD Customization
Free shop drawing generation for all custom shapes, oversized lift-and-slide doors, arched headers, and bespoke thermal mullions fitted to your exact job-site parameters.
Time-Zone Aligned Support
Our dedicated bilingual technical sales engineers manage project progress during your local business hours, bridging the Pacific to maintain absolute schedule control.
Connect Directly With Our Senior Fenestration Engineers
Whether you require full architectural shop drawings, structural thermal calculations, or a comprehensive ocean container shipping quote, our technical export team is ready to assist.
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Procurement Intelligence
Frequently Asked Sourcing & Engineering Questions
Critical technical clarifications for commercial builders, architects, and direct project importers considering aluminium clad timber fenestration.
How does your clad design prevent internal timber rot and moisture buildup? ▼
Unlike obsolete direct-glued systems, DERCHI uses an engineered floating connection method. High-strength POM and polyamide (PA66) structural clips hold the exterior aluminum profile 4mm to 6mm away from the inner wood. This built-in cavity allows continuous air circulation and condensation drainage while accommodating unequal thermal expansion rates between metal and timber. This protects the multi-layer waterborne timber finish and prevents fungal decay.
What wood species and sustainable certification standards are offered? ▼
We work primarily with FSC-certified sustainable timber stocks, including European Larch, North American Red Oak, Russian Pine, and Burmese Teak. Every timber batch is processed through our computerized continuous-dry kilns to lock moisture levels between 8% and 12%. It is then laminated into three- or four-layer finger-jointed beams using German D4-grade waterproof polyurethanes, achieving permanent dimensional stability.
Can DERCHI ship consolidated container orders directly to my country's port? ▼
Yes. We regularly handle FOB, CIF, and DDU maritime freight arrangements to international ports including Santos, Callao, San Antonio, Buenaventura, Long Beach, New York, Vancouver, Sydney, and Rotterdam. Every window and door unit is wrapped in multi-layer protective film, corner-protected, and packed into custom-built, heat-treated fumigation-free solid plywood crates suitable for transoceanic freight.
What structural certifications support your fenestration assemblies? ▼
Our complete systems are certified under CE (EN 14351-1), ISO9001 quality management, Australian AS2047 (with top-tier N6 cyclonic wind testing), and UL safety standards. We provide verified testing documentation covering positive/negative wind pressure deflection, air infiltration, water resistance, and structural acoustic transmission loss (Rw) to simplify permit approval with local building authorities.
How do you support on-site installation and field alignment remotely? ▼
Each custom-engineered unit features a labeled tag corresponding to your project's architectural door and window schedule. We supply full bilingual 3D installation blueprints, fixing-anchor distribution guides, and flashing details. For complex assemblies—such as multi-panel bi-fold glass walls or expansive pivot doors—our technical engineers provide scheduled video installation walkthroughs aligned with your local working hours.
What information is needed to receive a full quotation and CAD review? ▼
Please share your rough opening schedules or architectural elevation drawings, your required glass configuration (such as double/triple Low-E or acoustic laminates), your target interior wood species and exterior RAL finish, and your project location or preferred port of delivery. Our engineering team prepares a detailed line-item proposal and free CAD shop drawings within 24 hours.