9 January 2025 0 72 Technical Information .
Laminated glass is a versatile and durable material widely used in the construction and design of modern buildings. Its unique properties make it a preferred choice for various applications, including windows, doors, and safety glazing. In this article, we’ll delve into how laminated glass is made, the standards governing its production, its uses, types, and the grades specified under Australian standards.
What is Laminated Glass and How is it Made?
Laminated glass is created by bonding two or more layers of glass with an interlayer, typically made of polyvinyl butyral (PVB), ethylene-vinyl acetate (EVA), or a similar material. The layers are fused together under heat and pressure in an autoclave, resulting in a single, cohesive piece of glass with enhanced strength and safety features.
The interlayer acts as an adhesive and provides the glass with its unique ability to hold together even when shattered. This ensures that the shards remain stuck to the interlayer, reducing the risk of injury and maintaining structural integrity.
Standards for Laminated Glass
In Australia, laminated glass production and usage are governed by strict standards to ensure safety and performance. The primary standard is AS/NZS 2208:1996 – Safety Glazing Materials in Buildings, which specifies requirements for impact resistance, strength, and durability. Glass used in buildings must also meet AS 1288:2021 – Glass in Buildings for selection and installation guidelines.
These standards ensure that laminated glass meets rigorous safety and quality benchmarks, making it suitable for residential, commercial, and industrial applications.
Applications of Laminated Glass
Laminated glass is highly versatile and used in various applications, including:
Windows and Doors: Commonly installed in homes and offices for safety, soundproofing, and UV protection.
Skylights: Provides safety in overhead installations, preventing glass from falling in case of breakage.
Balustrades and Railings: Ensures security and aesthetic appeal in architectural designs.
Automotive Industry: Used for windshields to enhance impact resistance and reduce the risk of injury during accidents.
Storm Protection: Installed in regions prone to hurricanes or cyclones to withstand high winds and flying debris.
Types of Laminated Glass
Laminated glass comes in various forms to suit different needs. Some common types include:
Clear Laminated Glass: Basic laminated glass with no additional coatings or tints.
Tinted Laminated Glass: Offers aesthetic options and helps reduce solar heat gain.
Low-E Laminated Glass: Features a low-emissivity coating for improved energy efficiency.
Acoustic Laminated Glass: Designed with specialized interlayers to minimize sound transmission.
Security Laminated Glass: Enhanced thickness and layers for maximum impact resistance, often used in high-security areas.
Grades of Laminated Glass in Australian Standards
Laminated glass is graded based on its thickness, impact resistance, and application suitability. Australian standards, particularly AS/NZS 2208, classify laminated glass by:
Safety Grade: Ensures that the glass meets shatter resistance and containment criteria.
Impact Resistance Grade: Specifies the glass’s ability to withstand force without breaking.
UV Resistance: Indicates the interlayer’s ability to block UV rays, protecting interiors from fading and damage.
These grades help architects, builders, and consumers choose the right laminated glass for specific applications.
Benefits of Laminated Glass
Laminated glass offers numerous advantages, such as:
Safety and Security: Prevents shattering and resists forced entry.
Sound Insulation: Reduces noise transmission for a quieter indoor environment.
UV Protection: Blocks up to 99% of harmful UV rays, safeguarding interiors.
Durability: Withstands extreme weather conditions and impacts.
Energy Efficiency: Improves insulation and reduces energy costs when combined with Low-E coatings.
Laminated glass is best used in spaces where safety, security, and functionality are priorities. Here are some ideal spaces to consider:
Residential Areas:
- Windows and Doors: Provides safety from break-ins, reduces noise, and protects interiors from UV rays.
- Balconies and Balustrades: Adds strength and aesthetic appeal while ensuring safety, especially for children and pets.
Commercial Buildings:
- Office Partitions: Improves acoustic performance and ensures durability.
- Shopfronts and Facades: Offers security and shatter-resistance in high-traffic areas.
Public Spaces:
- Skylights: Prevents falling glass in overhead installations, ensuring safety in public areas.
- Railings and Stairs: Combines style with structural integrity for public buildings and transportation hubs.
High-Risk Zones:
- Hurricane or Cyclone-Prone Areas: Laminated glass provides protection against flying debris during storms.
- Security Zones: Used in banks, museums, or government buildings for its resistance to forced entry and impacts.
Automotive Use:
- Windshields: Enhances safety by holding shattered glass in place during accidents.
Conclusion
Laminated glass is an essential component in modern construction, offering unparalleled safety, durability, and versatility. Adhering to Australian standards ensures that the glass meets the highest quality benchmarks for safety and performance.
At Dena Windows, we provide a range of laminated glass products tailored to meet your needs. Whether you’re looking for enhanced security, soundproofing, or aesthetic appeal, we’ve got you covered. Contact us today to learn more about how laminated glass can transform your space!
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