Explore our engineered structural window profiles, thermal break sliding panels, and customized architectural fenestration solutions tested to global standards.
In contemporary architectural design, the non-operable fenestration system—commonly designated as the aluminum fixed glass window—has evolved from a elementary daylighting element into a high-performance structural facade unit. As global energy codes tighten and architectural aesthetics favor expansive, uninterrupted vistas, specifying structural aluminum fixed glazing requires an intimate understanding of extrusion metallurgy, thermal barrier physics, glass engineering, and seal integrity.
Headquartered in Foshan, Guangdong—the world’s premier aluminum manufacturing hub—Vexis Windows & Doors Co., Ltd. operates a 30,000 square meter standardized production complex dedicated to the R&D, structural testing, and custom fabrication of high-tier architectural fenestration systems. With over two decades of technical evolution and export operations spanning 154+ countries, Vexis delivers factory-direct engineering solutions engineered to meet demanding regional building standards including Australian AS2047/AS1288, North American NFRC/ASTM, and European CE EN14351-1 certifications.
Because fixed glass windows contain no moving operating sashes, mechanical hinges, or friction stays, their structural perimeter seals can be engineered to achieve up to 40% higher air tightness and water penetration resistance compared to operable casement or sliding units. When combined with structural silicone glazing (SSG) and polyamide PA66 thermal breaks, fixed aluminum framing provides the ultimate structural thermal envelope for high-rise facades and luxury residential installations.
A granular breakdown of structural aluminum frame extrusions and insulated glass unit (IGU) performance physics.
Fabricated using 6063-T5 / 6060-T6 architectural grade aluminum extrusions with wall thicknesses ranging from 1.8mm to 3.0mm. Engineered to resist negative wind pressure loads exceeding 5000 Pa, adhering to structural deflection criteria of L/175 and L/240 for high-altitude installations.
Utilizing Technoform® PA66 GF25 (25% glass fiber reinforced polyamide) thermal break strips, thermal bridging is effectively eliminated. Combined with double or triple Low-E insulated glass units filled with 90%+ Argon gas, system U-values are reduced down to ≤ 1.2 W/m²K (NFRC U-factor ≤ 0.21 BTU/h·ft²·°F).
Fixed glass frames accommodate asymmetric glass configurations (e.g., 6mm Low-E + 12Argon + 8.76mm Acoustic PVB Laminated). This structural glazing arrangement achieves Sound Transmission Class (STC) ratings up to 45 dB, isolating interior environments from heavy urban traffic and airport noise.
| Performance Standard | Fixed Glazing Profile | Operable Casement Window | Standard Horizontal Slider |
|---|---|---|---|
| Air Infiltration Rating | Level 8 (< 0.05 m³/m·h) | Level 7 (< 0.5 m³/m·h) | Level 5 (< 1.5 m³/m·h) |
| Water Penetration Resistance | Up to 700 Pa (14.6 psf) | 500 Pa (10.4 psf) | 300 Pa (6.27 psf) |
| Structural Deflection Limit | Design Pressure > 90 psf | Design Pressure ~ 60 psf | Design Pressure ~ 45 psf) |
| Max Sightline Span (Per Panel) | Up to 12.5 m² per glass pane | Up to 2.5 m² per sash | Up to 3.8 m² per panel |
| Hardware Maintenance Cycle | Zero Mechanical Moving Parts | Hinges/Stays require maintenance | Rollers/Tracks require cleaning |
How evolving building codes, decarbonization mandates, and minimalist aesthetics are shaping direct factory procurement.
Architects are driving demand toward ultra-narrow visible frame profiles (15mm to 25mm interlocks and perimeter frames). By recessing aluminum profiles into floor-to-ceiling concrete slabs, fixed windows deliver frameless visual transitions and maximize Natural Daylight Autonomy (NDA).
Environmental Product Declarations (EPD) are becoming mandatory in Western Europe and North America. Sourcing fixed window profiles manufactured from hydro-powered primary aluminum or high-content post-consumer recycled aluminum substantially lowers Embodied Carbon footprint for LEED v4.1 certification.
The integration of electrochromic dynamic glass and Building-Integrated Photovoltaics (BIPV) into non-operable fixed window units allows real-time modulation of Solar Heat Gain Coefficient (SHGC) while generating renewable onsite solar energy without sacrificing exterior architectural aesthetics.
From raw aluminum ingot processing to final export-ready wooden crating, explore our end-to-end quality ecosystem.
Equipped with imported 5-axis CNC machining centers, Vexis achieves absolute fabrication accuracy tolerances within ±0.5mm. Mitred frame corners are assembled with mechanical corner crimping cleats and dual-component structural adhesive injection for extreme torsional rigidity.
Our automated vertical powder coating lines utilize AkzoNobel® and PPG® fluorocarbon (PVDF) finishes. Specifiers can select hyper-durable surface finishes resistant to salt spray corrosion (exceeding 3000-hour ASTM B117 salt fog testing) ideal for harsh coastal environments.
Recognizing the risk of maritime freight transport, all custom fixed glass windows are packed with multi-layer protective film, shock-absorbing corner caps, vacuum desiccant bags, and enclosed within IPPC-certified fumigated plywood crates reinforced with steel strapping.
Addressing key engineering, commercial, and logistical inquiries from architects, real estate developers, and window importers.
Need structural calculations, CAD shop drawings, or direct factory quotations for your upcoming project? Speak directly with our senior export engineers today.
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