CE-Certified · EN 13830 & AS 2047 N6 Compliant
Engineered unitized envelopes, stick facades, and high-performance structural glazing built for global commercial landmark developments.
25+ Years Facade Engineering · 180,000 m² Base
Factory-Direct. Project-Ready Worldwide.
Providing global procurement teams, architects, and main contractors with comprehensive structural calculations, BIM modeling, and turn-key envelope systems.
Engineered Recommendations
The envelope of modern architecture demands an exacting balance of structural rigidity, low-emissivity thermal boundaries, acoustic isolation, and life-cycle resilience. Guangdong Dejiyoupin Doors and Windows Co., Ltd. engineers four benchmark commercial curtain wall typologies tailored to international building codes, hurricane conditions, and net-zero sustainability mandates.
Pre-assembled, factory-glazed panels engineered for rapid crane erection on mid-to-high-rise commercial towers. Featuring multi-chamber thermal breaks, pressure-equalized rainscreen cavities, and internal split mullions accommodating dynamic inter-story drift.
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Field-fabricated mullion-and-transom systems delivering exceptional geometric adaptability for commercial podiums, retail atriums, and multi-faceted complex entrance elevations. Built with 6063-T6 architectural aluminium alloys and high-load structural steel armatures.
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Frameless architectural vision systems utilizing precision stainless steel spider fittings, tension cable trusses, and laminated structural glass fins. Designed to provide uninterrupted visual transparency for luxury corporate headquarters, airports, and public atriums.
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Advanced intelligent facade systems incorporating an integrated cavity for automated sun-shading louvers, natural convective ventilation, and acoustic dampening exceeding 48 dB. Ideal for extreme climates requiring passive energy recovery and ultra-low U-values.
Learn MoreEnterprise Authority & Scale
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) stands as one of the premier top 10 door, window, and commercial facade manufacturers in China. Based in Foshan, the epicenter of global structural aluminium extrusions, our manufacturing and engineering complex covers a sprawling 180,000 m² with over 600 skilled technicians, structural engineers, and facade specialists.
For more than 25 years, our engineering department has developed advanced architectural envelopes, unitized commercial curtain wall assemblies, structural silicone glazing systems, and heavy-duty commercial entrance solutions. Our precision manufacturing lines incorporate German-imported 5-axis CNC machining centers, automated robotic structural glazing lines, and environmental curing facilities that guarantee millimeter tolerances across high-volume production cycles.
Strategic Sourcing Intelligence
As international building safety mandates tighten and ESG criteria dominate institutional capital, global procurement teams are shifting how commercial curtain walls are specified, sourced, and validated.
Contractors face critical on-site skilled labor shortages and compressed project delivery schedules. Sourcing pre-glazed, unitized curtain wall cassettes cuts site cranage time by 45%, eradicates scaffolding expenses, and guarantees pristine factory silicone seals.
Mandatory Environmental Product Declarations (EPD) are dictating tender qualifications. Forward-thinking developers prioritize prime extruded alloys manufactured using hydroelectric smelters, reducing embodied carbon to below 4.0 kg CO2e/kg aluminium.
Compliance DocsProcurement teams demand comprehensive Building Information Modeling (BIM) files prior to extrusion cutting. Level of Detail (LOD) 400 models verify anchor clashes, embed plate tolerances, and MEP penetrations, eliminating costly field rework.
Commercial developers no longer accept unverified supplier data sheets. Procurement mandates project-specific Performance Mock-Up (PMU) testing for static water tightness, dynamic pulse pressure, cyclic wind loading, and inter-story seismic movement.
Industry Evolution & Engineering
The modern commercial curtain wall has evolved from an inert physical barrier into a dynamic, energy-generating, thermo-acoustic building skin. Four technological pillars are reshaping the architectural envelope landscape.
Building Integrated Photovoltaics (BIPV) are replacing conventional spandrel glass panels. Thin-film photovoltaic glazing layers convert solar irradiance directly into clean commercial building electricity without compromising architectural color aesthetics or structural integrity.
Replacing bulky double or triple glazing, tempered vacuum insulated glass introduces an evacuated micro-cavity that drops center-of-glass thermal conduction (Ug) to an astonishing 0.40 W/(m²·K), dramatically reducing structural mullion dead-loads.
Intelligent facades utilize electrochromic glass coated with micro-thin metal oxide nanolayers. Driven by automated building management algorithms, panels tint dynamically in response to sun angles, controlling solar heat gain (SHGC) while retaining optical light clarity.
Commercial facades adjacent to international runways, metro rails, and congested financial avenues require acoustic suppression above 45 dB Rw+Ctr. DERCHI utilizes multi-layer acoustic PVB laminates combined with non-conductive structural polyamide breaks.
Testing Credentials & Standards
Guangdong Dejiyoupin Doors and Windows Co., Ltd. manufactures commercial curtain walls verified against the world's most stringent regulatory standards. Whether your project is governed by European EN 13830 harmonized standards, CWCT guidelines, US ASTM seismic standards, or Australian AS 2047 N6 cyclonic testing, our technical engineering dossiers substantiate every performance claim.
Engineering Technical Matrix
Architects and facade procurement directors require transparent engineering parameters to balance aesthetic ambition with life-safety compliance. Below is our standard engineering specification baseline across key commercial facade categories.
| Performance Attribute | Harmonized Standard | Engineered Specification Baseline | DERCHI Structural Methodology |
|---|---|---|---|
| Product Harmonization | EN 13830 / CWCT | Curtain Walling Standard for European & International Projects | CE-marked assemblies, comprehensive Declaration of Performance (DoP), factory production control (FPC). |
| Thermal Insulation (Ucw) | EN ISO 10077-2 / ASTM C1363 | Ucw down to 0.85 W/(m²·K) / 0.15 BTU/(hr·ft²·°F) | Multi-chamber PA66 GF25 thermal breaks, triple-glazed low-E argon units, and warm-edge structural spacers. |
| Structural Wind Resistance | EN 12179 / AS 2047 / ASTM E330 | Design wind pressure up to ±3.5 kPa (Serviceability) & ±5.25 kPa (Safety) | Finite element analysis (FEA) on 6063-T6 / 6061-T6 custom extruded profiles with internal steel stiffeners. |
| Air Permeability | EN 12152 / ASTM E283 | Class AE (>600 Pa) / <0.06 cfm/ft² at 6.24 psf | Continuous triple EPDM vulcanized gasket barriers featuring pressure-equalized rainscreen mechanics. |
| Water Tightness Under Static & Dynamic Pressure | EN 12154 / ASTM E331 & AAMA 501.1 | Class RE 1500 (1500 Pa) / Dynamic testing up to 720 Pa | Cascading internal drainage weep channels, pre-molded silicone boots, and compartmentalized unit baffles. |
| Acoustic Sound Attenuation | EN ISO 717-1 / ASTM E90 | Rw (C; Ctr) = 42 dB (-1; -4 dB) to 50 dB | Asymmetric laminated safety glass configurations (e.g., 8mm + 1.52PVB + 6mm) paired with acoustic isolators. |
| Seismic Floor Displacement & Inter-Story Drift | AAMA 501.4 / AS/NZS 4284 | Horizontal & vertical displacement up to ±35 mm without glass fracture | Interlocking male-female split mullions with high-durometer slip gaskets accommodating building live loads. |
| Spandrel Fire Integrity & Smoke Containment | EN 1364-3 / ASTM E119 | EI 60 to EI 120 fire-resistance classification | Integrated non-combustible rock wool perimeter firestops (min. 120 kg/m³) with galvanized back-pans. |
Every commercial curtain wall system engineered by Guangdong Dejiyoupin Doors and Windows Co., Ltd. is calculated to meet specific regional environmental parameters, seismic risks, and dead-load criteria prior to extrusion milling.
Engineering Workflow
An unbroken engineering chain ensuring precision manufacturing, transparent verification, and seamless port delivery.
Wind loads, thermal targets & building specs
Comprehensive CAD shop & anchor drawings
5-axis CNC machining & structural assembly
Two-part structural silicone bonding
Dimensional, seal & mock-up validation
Custom steel stillage sea freight dispatch
Finite element wind load modeling, profile section calculations, and connection bracket detailing prepared by certified facade engineers.
Deglazing tests, silicone butterfly tests, dynamic water infiltration testing, and air leakage verification conducted on every production batch.
Unitized facade cassettes packaged into heavy-gauge custom steel stillages with integrated crane hoisting lugs for direct floor landing.
Comprehensive installation sequences, alignment torque settings, and live remote technical guidance aligned with international business hours.
Project Sectors
Guangdong Dejiyoupin Doors and Windows Co., Ltd. delivers customized facade engineering for high-density commercial towers, corporate headquarters, luxury hospitality developments, retail atriums, and institutional landmarks.
Virtual Facility Audit
Conduct your technical supplier audit in 360° virtual reality. Examine our automated CNC cutting lines, automated structural silicone bonding stations, and assembly workshops right from your boardroom.
Direct Commercial Engagement
Collaborate directly with our senior facade engineering department. Submitting project architectural schedules allows us to deliver full static evaluations, profile section selections, and budget estimations within 48 hours:
Technical Procurement FAQ
Authoritative answers to the most common structural, thermal, logistical, and compliance questions asked by global facade engineers and procurement executives.
Send an InquiryIndustry Technical Authority
A leading British structural developer and long-term contractor partner of German Schüco selected Guangdong Dejiyoupin Doors and Windows Co., Ltd. for large-scale multi-villa and commercial envelopes, verifying that our factory-controlled tolerances, hardware integrations, and thermal metrics directly match European system leaders.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. presented our latest structural unitized curtain wall assemblies, acoustic glass systems, and high-performance commercial entrances, earning critical acclaim from international engineering consultants and commercial builders from North America, Europe, and the Middle East.
DERCHI architectural envelopes successfully passed Australia's most demanding test standard: AS 2047 Level N6. This certification verifies absolute structural deflection integrity and flawless water-tightness under severe typhoon, cyclone, and hurricane force wind pressures.