Hot Products
Key Performance Features
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Low-E Coating
Vacuum sputtered low-e coatings reduce infrared heat transfer while allowing visible light to pass through.
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Thermal Insulation
The sealed cavity, often filled with air or argon gas, minimizes heat conduction and improves U-value performance.
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Energy Savings
Reduced heat gain in summer and heat loss in winter lowers HVAC demand, contributing to long-term energy efficiency.
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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.
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 this 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. The uniform coating color across both flat and curved units ensures optimal façade aesthetics and architectural consistency.
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 Low-E IGU and how does it improve energy efficiency?
Low-E IGU (Low-Emissivity Insulated Glass Unit) combines vacuum-sputtered low-emissivity coatings with a sealed cavity — typically filled with air or argon gas — to minimize heat transfer. The coating reduces infrared radiation while allowing visible light to pass, lowering HVAC energy demand by retaining indoor warmth in winter and blocking heat gain in summer.
What international standards do Glaspedia's Low-E IGUs comply with?
Glaspedia's Low-E IGUs are manufactured to comply with globally recognized standards 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, mechanical strength, optical quality, and long-term thermal performance.
Can Low-E IGUs be combined with laminated glass for added safety?
Yes. South Star offers Low-E IGUs integrated with laminated glass technology. This combination delivers impact resistance, fragment retention for safety, enhanced penetration resistance for security, and design flexibility through options such as acoustic interlayers, decorative printing, or BIPV integration.
What landmark projects have used Glaspedia'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 integrating renewable energy, and The Henley in Hong Kong, where flat and curved Low-E IGUs provide superior thermal comfort while maintaining consistent façade aesthetics across all unit types.
Does Low-E IGU help with condensation and indoor comfort?
Yes. The thermal insulation properties of Low-E IGUs improve indoor surface temperatures on the glass, significantly reducing condensation on interior surfaces. This enhances overall indoor comfort by maintaining more stable temperatures and preventing moisture-related issues commonly associated with single-pane or standard double-glazed windows.
Are curved Low-E IGUs available, and do they maintain the same coating quality as flat units?
Yes. As demonstrated in The Henley project in Hong Kong, Glaspedia produces both flat and curved Low-E IGUs. The uniform coating color is maintained across both types, ensuring optical consistency, aesthetic coherence, and equivalent thermal performance — making them suitable for complex architectural façade designs.