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KINGSTAR GLASS
Low-E Glass | Energy-Efficient Architectural Glass Solutions
KINGSTAR BUILDING GLASS Low-E Glass features a microscopically thin, transparent metal or oxide coating that reflects long-wave infrared heat energy while allowing visible light to pass through. This advanced glazing solution significantly reduces heat transfer—keeping interiors warmer in winter and cooler in summer—resulting in substantial energy savings and improved occupant comfort for commercial and residential buildings. As a leading architectural glass supplier, KINGSTAR BUILDING GLASS off
What is Low-E Glass?
Low-E (low emissivity) glass is a high-performance architectural glass coated with a transparent metallic layer that reflects thermal radiation. In winter, the coating reflects interior heat back into the room; in summer, it reflects exterior solar heat away from the building. This minimizes the workload on HVAC systems and reduces energy consumption.
Low-E glass is generally classified into two types:
| Type | Production Method | Characteristics | Best For |
|---|---|---|---|
| Online Low-E (Hard Coat) | Applied during glass manufacturing (pyrolytic) | Durable, can be used as single pane, lower thermal performance | Warm climates, single-glazed applications |
| Offline Low-E (Soft Coat) | Applied in vacuum chamber (sputtering) | Higher performance, must be sealed in IGUs, temperable with advanced technology | Cold climates, high-performance insulated glass units |
KINGSTAR BUILDING GLASS specializes in offline Low-E glass, including single-silver, double-silver, and triple-silver coated products for maximum energy performance.
Performance Parameters
The effectiveness of Low-E glass is measured by three key metrics:
- U-Value (U-factor): Measures heat transfer rate. Lower U-value means better insulation.
- SHGC (Solar Heat Gain Coefficient): Measures how much solar radiation passes through. Lower SHGC provides better solar control.
- LSG (Light-to-Solar Gain Ratio): Ratio of visible light transmittance to SHGC. Higher LSG means more daylight with less heat gain.
Comparison of Glass Performance
Based on standard 6mm glass + 12A argon-filled insulating glass unit configuration.
| Product | Thickness | Visible Transmittance | SHGC (SC) | U-Value (W/m²K) | LSG |
|---|---|---|---|---|---|
| Single Clear Glass | 6mm | 89% | 0.99 | 6.2 | 0.90 |
| Clear Insulated Glass | 6+12A+6 | 81% | 0.87 | 2.8 | 0.94 |
| Single-Silver Low-E IGU | 6+12A+6 | 62% | 0.51 | 1.8 | 1.22 |
| Double-Silver Low-E IGU | 6+12A+6 | 62% | 0.40 | 1.7 | 1.55 |
| Triple-Silver Low-E IGU | 6+12A+6 | 63% | 0.32 | 1.6 | 1.97 |
Key Features
- Superior Thermal Insulation: Low U-value significantly reduces heating and cooling energy consumption.
- Effective Solar Control: Lower SHGC minimizes solar heat gain, particularly important in hot climates and for large glass facades.
- High Visible Light Transmission: Maintains excellent natural daylighting while blocking infrared heat.
- UV Protection: Reduces fading of interior furnishings by blocking ultraviolet light.
- Temperable Offline Coating: Advanced coating stability allows for tempering and further processing.
- Customizable Performance: Adjustable U-value and SHGC to meet specific project requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Glass Thickness | 3mm – 19mm |
| Maximum Size | Up to 3300mm × 6000mm |
| Minimum Size | 300mm × 300mm |
| Coating Type | Single Silver / Double Silver / Triple Silver (Offline Sputtering) |
| Product Options | Clear Low-E, Ultra-Clear Low-E, Tinted Low-E |
| Available Configurations | Monolithic (single pane), Laminated, Insulating Glass Units (IGU) |
| Certifications | ISO 9001, 3C, CE, ANSI Z97.1 (available upon request) |
| Lead Time | 15-25 days after order confirmation |
| Packaging | Interleaving paper, wooden crates, or custom packaging per order |
Applications
- Commercial Buildings: Office towers, shopping malls, hotels
- Residential Buildings: Apartment complexes, high-end homes
- Public Buildings: Hospitals, schools, airports
- Architectural Elements: Curtain walls, skylights, glass facades, windows and doors
Why Choose KINGSTAR BUILDING GLASS Low-E Glass?
- Advanced Coating Technology: Stable, temperable offline coating for superior performance.
- Complete Processing Capabilities: Tempering, laminating, and IGU assembly under one roof.
- Custom Solutions: Tailored U-value and SHGC to meet specific climate and project requirements.
- Global Standards Compliance: Products meet international thermal performance standards (NFRC, EN673).
- 【NEW】10 Years of Industry Expertise: With a decade of dedicated experience in architectural glass manufacturing and export, KINGSTAR BUILDING GLASS has built a deep understanding of diverse international building codes, climate-specific glazing requirements, and supply chain logistics. Our seasoned team has successfully delivered Low-E glass solutions to projects across North America, Europe, the Middle East, and Southeast Asia—earning the trust of developers, contractors, and glass processors worldwide through consistent quality and reliable on-time delivery.
- Quality Assurance: Strict quality control from raw material to finished product.
Ready to enhance your project with energy-saving Low-E glass? Speak directly with our technical team to receive performance simulations and a tailored quotation for your specific climate and building code requirements. We're here to help you optimize glazing performance from design to delivery.
Frequently Asked Questions (FAQ)
Q1: What is the difference between single-silver and double-silver Low-E glass?
A: Single-silver Low-E glass has one silver layer and provides good thermal insulation with moderate solar control. Double-silver Low-E glass has two silver layers, offering lower SHGC (better solar heat blocking) and a higher LSG ratio, meaning it lets in more visible light while blocking more heat—ideal for curtain walls and large glass facades. Triple-silver provides the highest performance for demanding energy-saving projects.
Q2: What is the U-value of KINGSTAR BUILDING GLASS Low-E glass and can it be customized?
A: For a standard 6mm Low-E glass + 12A argon-filled IGU configuration, the U-value ranges from 1.8 W/m²K (single-silver) down to 1.6 W/m²K (triple-silver). Yes, we can customize the glass thickness, gas filling, and coating type to achieve specific U-value and SHGC requirements for your project climate and energy code compliance.
Q3: Can Low-E glass be tempered and how is it packaged for export?
A: Yes, KINGSTAR BUILDING GLASS offline Low-E coatings are specifically engineered for tempering stability. After tempering, the glass can also be laminated or combined into IGUs. For export, we use interleaving paper between sheets and secure wooden crates, with custom packaging available upon request to ensure safe delivery worldwide.
Kingstar Building glass: www.kingstar-glass.com
Kinstar Glassware (Professional Glassware & Kitchen Storage): www.kingstarliving.com
Kingstar Building glass:
Email: eric@kingstar-glass.com
Kingstar Glassware
(Professional Glassware & Kitchen Storage):
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map | Technical Support:weidongli
Building glass:
Wechat/Whatsapp: 008618562697682
Email: eric@kingstar-glass.com
Glassware please visit: www.kingstarliving.com
Wechat/Whatsapp: 008615063091883
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map
