Hot Products
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 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.
ASTM E2190
IGCC/IGMA Certified
EN 1279
AS/NZS 4666
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
Q
What is a Low-E IGU and how does it work?
A Low-E IGU (Low-Emissivity Insulated Glass Unit) consists of two or more glass panes sealed together with a cavity filled with air or argon gas. A vacuum-sputtered low-e coating is applied to one of the glass surfaces to reflect infrared heat while allowing visible light to pass through, significantly improving thermal insulation and energy efficiency in buildings.
Q
What international standards do Low-E IGUs comply with?
Low-E IGUs can be manufactured to comply with multiple international standards depending on the destination market, including ASTM E2190 (USA), IGCC/IGMA Certification (USA/Canada), EN 1279 (Europe), and AS/NZS 4666 (Australia/New Zealand). These standards cover seal integrity, moisture resistance, gas retention, thermal insulation durability, and optical quality.
Q
How do Low-E IGUs contribute to energy savings?
Low-E IGUs reduce solar heat gain in summer and minimize heat loss in winter, lowering the demand on HVAC systems year-round. This results in reduced energy consumption and long-term cost savings, while also improving occupant comfort through more stable indoor temperatures and reduced condensation on interior glass surfaces.
Q
Can Low-E IGUs be combined with laminated glass technology?
Yes. Low-E IGUs can be enhanced with laminated glass technology to provide additional benefits including impact resistance and fragment retention for safety, enhanced penetration resistance for security, and design flexibility with options for acoustic interlayers, decorative printing, or BIPV (Building-Integrated Photovoltaic) integration.
Q
What landmark projects have used South Star's Low-E IGUs?
South Star has supplied Low-E IGUs for notable projects including 470 Hennessy Road in Hong Kong, a landmark commercial tower where both Low-E IGUs and BIPV IGUs were integrated for high energy efficiency and façade performance. South Star also provided flat and curved Low-E IGUs for The Henley residential development in Hong Kong, ensuring thermal comfort, aesthetic consistency, and sustainability performance.
Q
Are Low-E IGUs suitable for both flat and curved façade applications?
Yes. Low-E IGUs can be manufactured for both flat and curved glass applications. As demonstrated at The Henley project in Hong Kong, uniform low-e coating is applied across both flat and curved units, ensuring consistent thermal performance, optical quality, and façade aesthetic harmony — making them suitable for complex architectural designs in residential and commercial buildings.