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Low-e Insulated Glass Units from China Suppliers – High-Performance Factory Solutions for Thermal Efficiency
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Low-e Insulated Glass Units from China Suppliers – High-Performance Factory Solutions for Thermal Efficiency

Glaspedia Low Emissivity (Low e) insulated glass units (IGUs) are engineered to enhance thermal efficiency while ensuring clarity and comfort. Our IGUs, produced in China by top suppliers, feature two or more glass panes separated by a spacer, creating a sealed cavity filled with insulating air or inert gas. As a leading factory in the industry, we prioritize quality and performance in our Low e glass solutions, making them ideal for energy-efficient buildings and comfortable living environments. Choose Glaspedia for superior insulated glass units that meet your needs
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Product Details

Key Performance Features
🔬 Low-E Coating

Vacuum sputtered low-e coatings applied to the glass surface reduce infrared heat transfer while allowing visible light to pass through.

🌡️ Thermal Insulation

The sealed cavity, often filled with air or argon gas, minimizes heat conduction and improves U-value performance.

⚡ Energy Savings

Reduced heat gain in summer and heat loss in winter lowers HVAC demand, contributing to long-term energy efficiency.

💧 Comfort & Condensation Control

Improved indoor temperature stability and reduced condensation on interior surfaces.

Low-e IGU is to be manufactured to comply with global safety and performance standards, ensuring reliability across diverse markets:
  • 1 ASTM E2190 (USA) Defines IGU durability and performance, testing seal integrity, moisture resistance, gas retention, and fogging prevention.
  • 2 IGCC/IGMA Certification (USA/Canada) Certification program ensuring IGUs meet ASTM E2190 requirements through audits, sample testing, and long-term performance verification.
  • 3 EN 1279 (Europe) Governs IGU performance, covering moisture penetration, gas leakage, mechanical strength, optical quality, and thermal insulation durability.
  • 4 AS/NZS 4666 (Australia/New Zealand) Establishes IGU requirements for durability, moisture resistance, gas retention, and long-term thermal performance in buildings.
Your Trusted Partner

Glaspedia is recognized as a reliable supplier of Low-E IGUs for major commercial and residential developments in Hong Kong and beyond.

At 470 Hennessy Road in Hong Kong, South Star supplied both Low‑E IGUs and BIPV IGUs for the landmark commercial tower, integrating renewable energy generation while ensuring high energy efficiency and full compliance with stringent façade performance requirements.

At The Henley, Hong Kong, Glaspedia's flat and curved Low‑E IGUs provide superior thermal comfort and sustainability, meeting the demands of modern living in a dense metropolitan environment. The uniform coating color across both flat and curved units ensures optimal façade aesthetics and architectural consistency. These projects highlight South Star's ability to deliver high-performance glazing solutions that meet both architectural vision and regulatory demands.

Beyond energy efficiency, South Star enhances IGUs by integrating laminated glass technology. This combination provides:

🛡️
Safety

Laminated layers ensure impact resistance and fragment retention, meeting international safety codes.

🔒
Security

Enhanced resistance to penetration for façades.

🎨
Design Flexibility

Options for acoustic interlayers, decorative printing, or BIPV integration expand architectural possibilities.

South Star LowE Insulated Glass Units represent the convergence of energy efficiency, safety, and sustainability. With proven performance in landmark projects such as 470 Hennessy Road and The Henley, and the ability to combine lamination with IGUs, South Star continues to deliver glazing solutions that meet the evolving demands of modern architecture and urban development.
❓ Frequently Asked Questions
Q What is a Low-E IGU and how does it work?
A Low-E (Low Emissivity) Insulated Glass Unit (IGU) consists of two or more glass panes separated by a sealed cavity — typically filled with air or argon gas — with a vacuum-sputtered low-e coating applied to one of the glass surfaces. This coating reflects infrared heat while allowing visible light to pass through, reducing unwanted heat transfer and improving a building's thermal performance.
Q What energy savings can I expect from Low-E IGUs?
Low-E IGUs significantly reduce heat gain during summer and heat loss during winter, decreasing the demand on HVAC systems. This translates to lower energy consumption and utility costs over the long term, while also improving occupant comfort through more stable indoor temperatures.
Q Which international standards do Low-E IGUs need to comply with?
Low-E IGUs are manufactured to meet a range of international standards depending on the target market. Key standards include ASTM E2190 and IGCC/IGMA Certification in the USA and Canada, EN 1279 in Europe, and AS/NZS 4666 in Australia and New Zealand. These standards govern seal integrity, moisture resistance, gas retention, optical quality, and thermal insulation durability.
Q Can Low-E IGUs be combined with laminated glass?
Yes. South Star enhances IGUs by integrating laminated glass technology, which adds safety (impact resistance and fragment retention), security (penetration resistance for façades), and design flexibility. Options include acoustic interlayers, decorative printing, and BIPV (Building-Integrated Photovoltaics) integration.
Q Are curved Low-E IGUs available for architectural projects?
Yes. As demonstrated at The Henley in Hong Kong, Glaspedia supplies both flat and curved Low-E IGUs. The uniform coating color across flat and curved units ensures consistent façade aesthetics and architectural coherence, making them suitable for complex and premium building designs.
Q What notable projects have used South Star's Low-E IGUs?
South Star has supplied Low-E IGUs for landmark projects including 470 Hennessy Road in Hong Kong — a commercial tower where both Low-E IGUs and BIPV IGUs were integrated for renewable energy generation and high energy efficiency — and The Henley in Hong Kong, where flat and curved Low-E IGUs deliver superior thermal comfort and sustainability in a dense metropolitan setting.