Technical Fenestration Catalog
Architectural Portfolio & Recommended Envelope Solutions
Explore our precision-engineered exterior fenestration systems. Designed to marry interior structural timber warmth with weather-defying exterior aluminium cladding, these systems meet stringent international impact and acoustic performance requirements.
Material Engineering White Paper
Architectural Anatomy of Clad Timber Fenestration
Understanding the mechanical separation between structural timber substructures and extruded aluminium armor is fundamental to specifying fault-tolerant building envelopes.
Mechanically Decoupled Shielding
Unlike bonded composite profiles prone to shear failure, our systems utilize floating polyamide composite fasteners. These provide an 8mm ventilation cavity between the external aluminium envelope and the load-bearing laminated timber frame, negating condensation pooling and timber rot.
Thermal Differential Accommodation
Aluminium expands longitudinally at approximately 2.3 mm per meter per 100°C change, while natural wood expands at a fraction of this rate across grain boundaries. Our clip mechanics allow zero-stress linear sliding motion, preventing frame bowing, air-leakage degradation, and sash binding over seasonal extremes.
Multi-Tier EPDM Barrier Architecture
Utilizing high-elasticity automotive-grade continuous EPDM dual gaskets, our aluminium clad systems establish distinct decompression chambers. Water penetration is prevented through an engineered pressure equalization canal that directs gravity-driven moisture away before it can breach the thermal barrier.
| Evaluation Parameter | Standard Aluminium Frame | Standard Solid Timber | DERCHI Alu-Clad Timber System |
|---|---|---|---|
| Overall U-Factor (Uw) | 1.4 - 1.8 W/m²K | 1.2 - 1.4 W/m²K | 0.79 - 1.05 W/m²K (Passive House Verified) |
| Exterior Maintenance Interval | 5 - 8 Years (Coating Refresh) | 2 - 4 Years (Scrape & Re-varnish) | 30+ Years (Fluorocarbon Powder Shield) |
| Acoustic Attenuation (Rw) | 32 - 36 dB | 35 - 38 dB | Up to 48 dB (Triple Laminated Argon Matrix) |
| Interior Carbon Footprint | High Embodied Energy | Carbon Negative Timber | Optimized Life-Cycle Carbon Offset |
| Structural Resistance Class | RC2 / Heavy Weight | RC1 - RC2 | RC3 / RC4 (Multi-point Hardened Cam Locking) |
Global Market Trajectory
Future Procurement Trends & Technological Evolution
Strategic analysis for architectural specifiers, developers, and commercial procurement departments navigating decarbonization mandates and high-performance building metrics.
FSC Forest Custody & Low-Carbon Aluminum
Global architectural standards (LEED v4.1, BREEAM, and EU Green Taxonomy) increasingly mandate verified lifecycle assessments. Procurement trends prioritize FSC-certified Siberian Larch or North American Oak married with hydro-smelted low-carbon aluminium billets, mitigating Scope 3 supply chain emissions.
Concealed Actuators & Smart Building Integration
The demand for automated micro-ventilation and facade management systems is transforming window hardware. Future-proof specifications integrate concealed chain actuators and magnetic contact sensors embedded within the rebate profile, interfacing with KNX, BACnet, and central BMS networks.
Aerogel Interlayers & Vacuum Insulated Glass
Thermal targets are migrating toward net-zero criteria. Suppliers are replacing standard air or argon filled IGU modules with Hybrid VIG (Vacuum Insulated Glass) technologies, achieving center-of-glass U-values as low as 0.45 W/m²K within a profile thickness comparable to double glazing.
Manufacturing Authority
Guangdong Dejiyoupin: Global Fenestration Excellence
Recognized as an industry-leading door and window manufacturer in China, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates over 180,000 m² of specialized production capacity, serving tier-one commercial developers and residential estates globally.
25+ Years Legacy
Over a quarter century of proprietary engineering, tooling evolution, and structural testing. DERCHI is positioned as a benchmark manufacturer trusted across Europe, the US, and Australasia.
Tier-One Certifications
Our complete systems hold CE marking under EN 14351-1, ISO 9001 quality system credentials, Australian AS 2047 cyclonic N6 ratings, and UL-certified fire resistance integrity.
Free CAD & BIM Delivery
In-house facade engineers craft precise CAD shop drawings, custom thermal modeling reports, and full BIM models customized directly to your architectural schedules without service surcharges.
Worldwide Logistics Safe
End-to-end export protection with customized steel-reinforced timber crates, ocean moisture packaging, and scheduled sea-freight routing directly to Rotterdam, Hamburg, Los Angeles, and Felixstowe.
Foshan Intelligent Base
Vetted by European Building Partnerships
A testament to our rigorous quality assurance: a major British homebuilder and long-standing partner of German fenestration brand Schüco recently completed procurement and handover of over a dozen luxury villa projects supplied exclusively with DERCHI custom high-end systems.
Our factory incorporates robotic multi-axis CNC joinery centers, computerized constant-humidity timber stabilization chambers, and fully automated powder coating lines capable of executing architectural finishes with marine-grade guarantees.
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Technical Verification
Aluminium Clad Timber Procurement FAQ
Detailed answers addressing engineering feasibility, building code validation, timber treatment chemistry, and cross-border installation assurance.
How does aluminium clad timber solve the rot and degradation issues of solid wood windows?
Solid wood frames deteriorate primarily from solar ultraviolet radiation breaking down lignocellulosic cell walls combined with repeated moisture-saturation and freeze-thaw cycles. Aluminium clad timber systems position a heavy-gauge extruded aluminium shell externally to absorb 100% of UV rays, wind-driven rain, and surface physical abrasions. The key engineering element is an internal convection back-ventilation cavity between the metal and timber profiles, ensuring any relative humidity from temperature differentials evaporates rapidly. The interior timber retains structural dimension and thermal warmth indefinitely without repetitive sanding or exterior re-coating.
What wood species and stabilization treatments are specified for extreme climates?
We exclusively engineer engineered laminated lumber (three or four-ply finger-jointed blocks) using slow-growth Nordic Pine, Siberian Larch, or sustainably harvested White Oak. Multi-ply engineered lamination ensures grain patterns oppose each other, eliminating internal timber tension, cupping, or longitudinal warping. Raw timber undergoes precision kiln-drying down to an equilibrium moisture content of 10% ± 2%, followed by pressurized ecological anti-fungal, insect-resistant, and waterborne micro-porous organic impregnation primers prior to finishing.
How do these composite fenestration systems perform under extreme wind loads and coastal storms?
Our systems meet the highest performance standards, including Australian AS 2047 N6 cyclonic testing requirements and European EN 12210 Class C5 wind resistance ratings. Structural resilience is achieved by leveraging high-moment-of-inertia 6063-T6 architectural aluminium alloy profiles coupled to the laminated timber heart with heavy-duty structural steel tie brackets. For coastal exposures, exterior finishes are electrostatically powder coated with Qualicoat Class 2 / Class 3 PVDF fluorocarbon coatings capable of passing rigorous 3,000-hour neutral salt spray tests.
Can DERCHI supply customized CAD shop drawings and achieve certified Passive House U-factors?
Yes. Every architectural order receives comprehensive, free CAD submittal packages detailing wall section interfaces, flashing integrations, structural anchoring methods, and glazing rebate sections. For ultra-low energy and Passivhaus applications, we configure 88mm to 110mm deep profile frames incorporating aerogel-enhanced thermal breaks and triple or quadruple argon-filled glass units utilizing warm-edge Swisspex spacers, consistently delivering total window U-values down to 0.79 W/m²K.
What is the standard procedure for on-site European and North American installation support?
Every shipment arrives accompanied by step-by-step assembly guides, bilingual anchor schedules, and QR codes linking to specialized system installation videos. Our engineering teams operate with scheduled European (CET/GMT) and American business hours coverage, providing remote video conferencing, installation audits, and technical assistance directly to your general contractor or fenestration subcontracting teams throughout rough opening installation and seal commissioning.
Initiate Your Custom Architectural Specification
Submit your project door and window schedule or architectural sketches. Our facade engineering team will generate customized CAD details, thermal performance simulations, and factory-direct pricing within 24 business hours.
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