Engineered to deliver exceptional thermal insulation, sound attenuation, and architectural flexibility for Western Switzerland's demanding microclimate.
Geneva, situated along the shores of Lake Geneva (Lac Léman) and framed by the Alps, experiences a unique temperate-continental microclimate. The region features cold, damp winters characterized by the biting "Bise" wind, and warm summers that demand severe solar control. Consequently, modern construction projects in Geneva—from luxury residences in Cologny to headquarters in the Quartier des Banques—must strictly conform to the Swiss Minergie, Minergie-P, and Minergie-A energy efficiency standards.
To comply with local energy decrees (such as the Loi sur l'énergie - LEns), building envelopes must optimize thermal transmittance values. Architectural project specifications routinely call for double and triple insulated glass units (IGUs) that achieve center-of-glass thermal performance (U-values) as low as 0.5 W/m²K.
Furthermore, because Geneva is a major hub for international diplomacy, banking, and luxury watchmaking, acoustic performance is critical. Glazing systems must mitigate the high-frequency decibels of urban transportation near the Cointrin Airport and the Cornavin railway station, driving high demand for advanced acoustic PVB and SGP laminated insulated assemblies.
Our triple-glazed Low-E packages and vacuum insulated products directly satisfy the strict thermal efficiency criteria required for Minergie-certified projects across Switzerland.
Combining customized spacer widths with varied-thickness laminated panes achieves noise dampening up to 45 dB, isolating urban interior spaces from outside noise.
How evolving global demands for decarbonization, ultra-low U-values, and smart façades are reshaping architectural design.
Architects and engineers are prioritizing materials with documented Environmental Product Declarations (EPDs). By combining highly optimized glass sourcing with state-of-the-art coatings, the life-cycle energy consumption of building systems is drastically reduced.
VIG technology represents the frontier of thermal performance, delivering the insulation of a masonry wall within a single-pane profile thickness. It is ideal for retrofitting historical buildings where traditional heavy glazing frames cannot be accommodated.
With three microscopic silver layers within the coating stack, triple silver Low-E options achieve high light transmission (LT) while maintaining a low solar heat gain coefficient (SHGC), preventing indoor overheating during hot Swiss summers.
Western Swiss developers and façade fabricators demand high quality, strict delivery times, and clear traceability. Our automated factory integration bridges the gap between cost efficiency and Swiss quality expectations.
Through systematic upgrades to automated production lines (Industry 4.0), we ensure that every piece of tempered, laminated, or insulated glass matches European quality baselines (EN 1279, CE, and SGCC standards). Our factory utilizes automated Lisec cutting lines, advanced CNC grinding stations, and robotic gas-filling sealing machines. This ensures consistent primary and secondary sealing (using high-quality structural silicones from Dow Corning or Sika), minimizing the risk of argon gas leakage over the lifetime of the unit.
To safeguard international transport, custom export-grade heavy-duty plywood crates are used, combined with moisture-absorbing desiccants and impact sensors. This meticulous logistics workflow guarantees that products destined for Geneva arrive safe, intact, and ready for installation.
Hangzhou Greensina Glass Co., Ltd. is a professional manufacturer specializing in architectural and decorative glass solutions. Located in Hangzhou, China, the company focuses on providing high-quality glass products widely used in residential buildings, commercial spaces, offices, and interior design projects. Our main product range includes tempered glass, laminated glass, insulated glass, frosted glass, and tinted glass, all designed to meet modern requirements for safety, energy efficiency, and aesthetic appeal.
Founded in 2010, Greensina Glass has grown steadily from a small processing workshop into a reliable supplier in the architectural glass industry. The company now employs more than 90 experienced staff members, including skilled technicians, engineers, and quality control specialists. Our production facility covers an area of approximately 7,000 square meters and is equipped with advanced glass processing equipment to ensure precise manufacturing and consistent product quality.
Over the years, Hangzhou Greensina Glass Co., Ltd. has expanded its market to serve customers both domestically and internationally. Our products are exported to Europe, North America, Southeast Asia, and the Middle East. By focusing on innovation, strict quality management, and customer-oriented service, the company is committed to delivering dependable glass solutions and establishing long-term partnerships with clients worldwide.
Compare structural properties, solar protection levels, and insulation performance across our main architectural product types.
| Glazing Type | U-Value (Air Filled) | U-Value (90% Argon) | Solar Heat Gain (SHGC) | Light Transmittance (VLT) | Acoustic Rating (Rw) |
|---|---|---|---|---|---|
| Double Insulated Low-E (6+12A+6) | 1.4 W/m²K | 1.1 W/m²K | 0.38 - 0.55 | 65% - 78% | 35 - 38 dB |
| Triple Insulated Low-E (6+12Ar+6+12Ar+6) | 0.8 W/m²K | 0.5 - 0.6 W/m²K | 0.28 - 0.40 | 55% - 68% | 40 - 43 dB |
| Tempered Vacuum Insulated (VIG) | — | 0.4 - 0.5 W/m²K | 0.25 - 0.38 | 60% - 72% | 39 - 44 dB |
| Acoustic Laminated Double Glazed | 1.5 W/m²K | 1.2 W/m²K | 0.35 - 0.50 | 62% - 75% | 42 - 47 dB |
Tailored engineering answers to meet Switzerland's diverse structural and aesthetic design requirements.
Buildings bordering Lake Geneva face high winds and intense sun exposure. Utilizing double-silver and triple-silver Low-E coating technology ensures structural reliability against localized wind loads, while maintaining comfortable interior temperatures without overburdening HVAC systems.
For historical properties in Geneva's Old Town (Vieille Ville), maintaining the original window frames is required. Our ultra-thin, low-profile vacuum insulated glass (VIG) systems integrate seamlessly into historic profiles while upgrading thermal values to modern energy standards.
Integrating SentryGlas® (SGP) and PVB multi-layer laminated structural safety glass into insulated panels provides excellent burglary resistance and blast mitigation for Geneva's financial institutions, without compromising on light transmission or thermal efficiency.
Explore our complete catalog of certified glass assemblies for commercial, residential, and specialized retrofits.
Key architectural, compliance, and import queries answered by our senior engineering advisors.
Typically, production takes 15 to 20 days depending on the structural complexity (such as custom heat soak tests or bent configurations). Sea shipping from China to key European hubs (e.g., Rotterdam or Genoa) combined with rail freight to Geneva generally takes 35 to 45 days. We also offer express air transport for urgent architectural replacements.
Yes. All Greensina Glass architectural assemblies are fully certified to EN 1279 standards for moisture penetration and gas retention. We regularly supply European contractors and offer compliance documentation, factory audit reports, and quality test certificates (CE, SGCC) for verification before shipping.
Traditional double glazing (6mm Glass + 12mm Air + 6mm Glass) has an overall thickness of 24mm and yields a U-value of roughly 1.4 W/m²K. Our Vacuum Insulated Glass (VIG) uses a microscopic vacuum gap (less than 1mm) between panes, reducing total thickness to under 12mm while achieving a U-value of 0.4 to 0.5 W/m²K. This delivers triple-glazing performance inside a slim profile suitable for vintage retrofits.
Yes, we specialize in high-end architectural geometries. Our tempering and bending furnaces can produce curved, insulated glass with tight radii and low optical distortion, which is ideal for curved facades, boutique storefronts, and corner architectural installations in Geneva.
Depending on your project's thermal target, we provide traditional aluminum spacer bars, stainless steel spacer bars, and modern warm-edge spacers. Warm-edge spacer bars significantly reduce linear thermal conductivity at the glass edges, preventing condensation and lowering thermal bridging across the frame profile.
Seal longevity is essential for high-performance glass. We use a dual-seal barrier system. The primary seal consists of extruded polyisobutylene (PIB) to block moisture ingress, while the secondary structural seal is constructed using Dow Corning silicone or polyurethane. This configuration resists UV radiation and thermal cycling stresses, ensuring decades of moisture-free performance.
From custom thermal calculations and wind load modeling to architectural samples and logistics coordination, our engineering department is ready to assist your project.
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Greensina Glass