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China Low-E Insulated Glass Units from Leading Suppliers and Factory for Enhanced Thermal Performance
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China Low-E Insulated Glass Units from Leading Suppliers and Factory for Enhanced Thermal Performance

Glaspedia Low Emissivity (Low e) Insulated Glass Units (IGUs) are engineered for superior thermal performance while ensuring transparency and comfort in various applications. Each IGU features two or more glass panes separated by a spacer, sealed effectively to form an insulating cavity filled with air or inert gas. As a leading manufacturer in China, we pride ourselves on delivering high-quality IGUs that meet the needs of our customers. Our factory uses advanced technology to produce insulated glass units that enhance energy efficiency and reduce heating costs, making us a trusted choice among suppliers in the industry
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Product Details

Key Performance Features Include
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:

  • ASTM E2190 (USA): Defines IGU durability and performance, testing seal integrity, moisture resistance, gas retention, and fogging prevention.
  • IGCC/IGMA Certification (USA/Canada): Certification program ensuring IGUs meet ASTM E2190 requirements through audits, sample testing, and long-term performance verification.
  • EN 1279 (Europe): Governs IGU performance, covering moisture penetration, gas leakage, mechanical strength, optical quality, and thermal insulation durability.
  • AS/NZS 4666 (Australia/New Zealand): Establishes IGU requirements for durability, moisture resistance, gas retention, and long-term thermal performance in buildings. By adhering to these standards, South Star ensures its laminated glass solutions meet international benchmarks for safety, durability, and sustainability, making them suitable for both local and global projects.
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.

🏢 470 Hennessy Road, 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.
🏙️ 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
What is a Low-E IGU and how does it work?
A Low-E (Low Emissivity) Insulated Glass Unit consists of two or more glass panes separated by a sealed cavity filled with air or argon gas. A vacuum-sputtered low-e coating on the glass surface reduces infrared heat transfer while allowing visible light to pass through, significantly improving a building's thermal performance.
What international standards do Low-E IGUs need to comply with?
Low-E IGUs may need to meet various regional standards depending on the project location — including ASTM E2190 and IGCC/IGMA Certification in the USA/Canada, EN 1279 in Europe, and AS/NZS 4666 in Australia and New Zealand. These standards govern seal integrity, moisture resistance, gas retention, thermal insulation, and optical quality.
How do Low-E IGUs contribute to energy savings in buildings?
By reducing heat gain in summer and heat loss in winter, Low-E IGUs lower the demand on HVAC systems. This results in reduced energy consumption, lower utility costs, and a smaller carbon footprint over the building's lifetime — making them a key component of sustainable construction.
Can Low-E IGUs be combined with laminated glass technology?
Yes. South Star integrates laminated glass technology into its IGU products. This combination offers enhanced safety (impact resistance and fragment retention), improved security (penetration resistance for façades), and greater design flexibility through acoustic interlayers, decorative printing, or BIPV integration.
What real-world projects have used South Star's Low-E IGUs?
Notable projects include 470 Hennessy Road in Hong Kong, where both Low-E IGUs and BIPV IGUs were supplied for a landmark commercial tower, and The Henley in Hong Kong, where flat and curved Low-E IGUs were used to deliver superior thermal comfort and consistent façade aesthetics in a high-density residential development.
Are Low-E IGUs suitable for curved or non-standard façade designs?
Yes. As demonstrated at The Henley project, South Star is capable of producing both flat and curved Low-E IGUs with uniform coating color, ensuring consistent thermal performance and visual aesthetics across complex architectural façade designs. This makes them suitable for a wide range of modern commercial and residential applications.