SGCC Certified
Engineered Architectural Systems
Featured Frameless & High-Performance Fenestration Portfolio
Explore factory-direct glazing solutions tested to stringent European (CE, EN 14351-1), North American (NFRC, SGCC), and Australian (AS 2047) standards.
Acoustic & Wet Area
AS 2047 Tested
High Security Entry
Minimalist 20mm Stile
NFRC Certified
Soft-Close System
Passive House Ready
180,000m²
Global Manufacturing Base
600+
Skilled Facade Engineers & Techs
100+
Global Patents & Certificates
25+
Years of Structural Engineering
Direct Manufacturer Authority
Industrial Scale Meets Bespoke Architectural Precision
As an industry-leading fenestration manufacturing conglomerate, Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates an ultra-modern 180,000-square-meter manufacturing plant. We specialize in the research, mechanical engineering, structural extrusion, and precision fabrication of high-performance fenestration systems.
Serving elite architects, façade consultants, and general contractors across the United States, Canada, Europe, Australia, and the Middle East, our production lines bridge the gap between architectural minimalism and strict compliance with global building codes.
Every profile system is engineered from prime virgin aluminum alloys (6063-T5/6060-T66) and processed via 5-axis CNC machining centers, guaranteeing dimensional tolerances within ±0.5mm on spans exceeding 6 meters in height.
Certified ISO 9001 & CE Facility
Rigorous in-house cyclical, wind-load & water penetration testing
Industry Whitepaper & Strategic Procurement
Future Procurement Trends in Architectural Frameless Glazing Systems
Analyzing structural load-bearing mechanics, thermal barrier evolution, and carbon compliance driving the next decade of architectural fenestration.
1. Invisible Frame Sub-Structure Engineering
The global architectural sector has moved definitively away from conventional bulky mullions. Current procurement specifications demand fully embedded outer frames where structural aluminum jambs, heads, and sills are recessed entirely into the finished architectural envelope (flooring, ceiling soffits, and exterior cladding).
This allows up to 98% visible glass ratios. The primary technical requirement shifts onto subterranean drainage gutter design, precision leveling tracks, and integrated floor-to-ceiling seismic expansion tolerances.
2. Stringent Thermal Decoupling & Decarbonization
With international energy conservation benchmarks tightening (such as ASHRAE 90.1 in North America and European EPC 'A' ratings), frameless systems must solve the historic thermal bridging liability of aluminum. Modern specifications prioritize multi-cavity polyamide (PA66 GF25) thermal breaks.
Coupled with triple-silver Low-E insulated glass units (IGUs) filled with 90% Argon gas, our systems reliably attain U-values lower than 1.1 W/(m²·K), drastically cutting HVAC lifecycle carbon loads.
3. Heavy-Duty Structural Glass as the Load Carrier
In true frameless architecture, the glass unit is no longer a passive infill panel; it functions as a primary structural element. Procurement teams are specifying SentryGlas (SG5000) laminated ionoplast interlayers instead of traditional PVB.
This structural lamination prevents shear failure, allowing individual frameless sliding sashes to scale up to 15 square meters and support panel weights over 1,000 kg while maintaining fingertip glide mechanics under severe cyclonic wind pressures.
| Performance Parameter | Standard Commercial Window | DERCHI CE Certified Frameless System | Engineering Compliance Benefit |
|---|---|---|---|
| Visible Sightline (Interlock) | 55mm – 85mm visible profile | 18mm – 21mm ultra-slim sightline | Unobstructed vistas; maximizes natural daylight penetration |
| Air Permeability (EN 12207) | Class 2 to Class 3 | Class 4 (Highest EU standard) | Eliminates whistling, drafts, and energy leakage under high wind loads |
| Water Tightness (EN 12208) | Class 5A (200 Pa) | Class 9A / E1050 (> 1050 Pa) | Resists torrential storm penetration with submerged continuous drainage |
| Wind Load Resistance (EN 12210) | Class B2 – B3 | Class C5 / AS 2047 N6 (Cyclonic) | Withstands extreme coastal hurricane gusts without structural deflection |
| Acoustic Attenuation (ISO 717-1) | Rw = 28 – 32 dB | Rw = 42 – 48 dB (with acoustic laminated IGU) | Ensures silent interior acoustics for luxury residential & urban hotels |
Procurement Intelligence
Frequently Asked Technical & Sourcing Questions (FAQ)
Addressing structural, logistical, code compliance, and manufacturing challenges for international trade buyers.
What precise CE testing documentation do your frameless window systems provide?
Our systems comply with European Harmonised Standard EN 14351-1:2006+A2:2016. Every export consignment is supplied with an official Declaration of Performance (DoP), verifying factory-tested mechanical strength, thermal transmittance (EN ISO 10077-1), safety in use, and acoustic insulation. Full test reports executed by accredited notified laboratories are available for architectural review.
How does your factory ensure water-tightness on recessed or flush floor tracks?
We utilize proprietary subterranean cascade drainage manifolds. The hidden floor tracks feature CNC-machined pressure equalization slots coupled with an internal slope and an integrated collector channel connected to your building's external drainage pipes. This design maintains watertight performance up to 1050 Pa without requiring a visible threshold step.
Can you coordinate custom North American imperial schedules and CAD shop drawings?
Yes. Our dedicated in-house facade engineering department translates your architectural elevations, rough opening schedules (specified in inches or metric), and structural wind-load requirements into complete bilingual 2D/3D CAD shop drawings, connection details, and BIM models for project submittals prior to extrusion or fabrication.
What are the lead times, and how are heavy frameless glass panels packaged for ocean transport?
Standard production turnaround ranges from 25 to 35 business days following shop drawing sign-off. Given the weight and zero-tolerance nature of frameless units, all systems are crated in heat-treated, fumigated plywood cases with shock-absorbing foam spacers, corner protectors, desiccant packs, and moisture-proof vacuum barriers, engineered specifically for overseas container shipping.
How do you handle site installation support for foreign contractors?
Every shipment includes labeled components keyed to installation drawings, pre-assembled profile modules, and step-by-step video manuals. Our bilingual structural engineering team provides real-time video conferencing technical support during track setting and sash glazing to ensure alignment and sealing integrity.
Which surface treatment technologies protect profiles in extreme salt-mist environments?
For coastal installations exposed to high salinity (e.g., coastal Florida, California, Australia), we apply Qualicoat Class 2 certified architectural powder coatings or fluorocarbon (PVDF) three-coat finishes with a 20-year anti-chalking and anti-corrosion guarantee, alongside Class 20/25 micron architectural anodizing.
Engineer Your Next Architectural Landmark with DERCHI
Whether you require structural calculation reports, bespoke extrusions, or factory-direct pricing for commercial developments and luxury estates, our fenestration specialists are ready to review your schedule.