ELTHAM GLASS BLOG

What Is Safety Glass? Laminated Vs Tempered

by | Apr 22, 2024 | Blog

Among the various types of glass available, safety glass stands out for its unique properties designed to mitigate potential hazards. If you’re considering adding this type of glass to your home or office design, there are a few things you need to know before you go ahead. 

Particularly choosing between laminated and tempered glass.

As glass and installation experts in Melbourne, here’s everything you need to know about the key differences between laminated and tempered glass.

What is Safety Glass?

Safety glass is a specialised type of glass engineered to minimise the risk of injury in case of breakage. Unlike traditional annealed glass, which shatters into sharp, dangerous shards upon impact, safety glass undergoes specific manufacturing processes to enhance its strength and durability. 

The two primary varieties of safety glass are laminated and tempered glass, each offering distinct advantages and applications.

Laminated Glass: Enhancing Safety and Security

Laminated safety glass comprises multiple layers of glass fused together with an interlayer of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) resin. This construction imparts exceptional strength and resilience to the glass, even when fractured. In the event of breakage, the interlayer holds the glass fragments in place, preventing them from dispersing dangerously.

One of the most notable characteristics of laminated glass is its ability to withstand impact. Even when cracked or shattered, the glass remains intact, maintaining structural integrity and minimising the risk of injuries from sharp edges. Due to this property, laminated glass finds extensive use in applications where safety is paramount, such as:

  • Automotive Industry: Laminated glass is commonly used for windshields, protecting vehicle occupants in case of accidents.
  • Architectural Applications: It is utilised in windows, doors, and skylights, particularly in areas prone to severe weather conditions or potential impacts.
  • Security Purposes: Laminated glass is often incorporated into security doors and windows, offering resistance against forced entry and vandalism.

Moreover, laminated glass provides additional benefits beyond safety. It offers sound insulation properties, UV protection, and enhanced resistance to break-ins, making it a versatile choice for various residential, commercial, and industrial settings.

Tempered Glass: Strengthening Durability

Tempered glass, also known as toughened glass, undergoes a thermal tempering process to enhance its strength and resilience. During manufacturing, the glass is heated to high temperatures and rapidly cooled, creating internal stresses that result in increased toughness. This process imbues tempered glass with remarkable resistance to impact and thermal stress.

One of the defining features of tempered glass is its ability to fragment into small, blunt pieces upon breakage, significantly reducing the risk of severe injuries. Unlike traditional glass, which forms sharp shards, tempered glass disintegrates into granular chunks that are less likely to cause harm. This property makes tempered glass an ideal choice for various applications, including:

  • Shower Enclosures: Tempered glass shower screens offer both safety and aesthetic appeal, ensuring minimal risk of injury in wet environments.
  • Facades and Curtain Walls: Tempered glass panels provide structural support and visual transparency in building exteriors, enhancing architectural design.
  • Furniture and Tabletops: Tempered glass tabletops and shelves offer durability and safety, particularly in high-traffic areas.

Additionally, tempered glass exhibits higher resistance to thermal stress, making it suitable for applications subjected to temperature variations, such as oven doors, fireplace screens, and cooking utensils.

Choosing the Right Glass for Your Needs

When selecting between laminated and tempered glass, it’s essential to consider the specific requirements of your project. While both types offer enhanced safety compared to traditional annealed glass, their properties and applications differ significantly.

  • For Enhanced Security: Laminated glass is the preferred choice, providing superior resistance to impacts and forced entry. It’s ideal for applications where security is a primary concern, such as storefronts, banks, and government buildings.
  • For Structural Stability: Tempered glass excels in applications where durability and structural integrity are paramount. It’s commonly used in architectural features, furniture, and automotive applications where high strength and impact resistance are essential.

Customisation and Design Flexibility

Laminated glass provides designers and architects with greater flexibility in terms of customisation and design possibilities. The interlayer can incorporate various materials, such as coloured films, fabrics, or decorative elements, allowing for the creation of visually stunning glass features. 

This versatility makes laminated glass a preferred choice for artistic installations, signage, and interior design applications where aesthetics play a significant role.

Noise Reduction

In addition to its safety and security benefits, laminated glass offers sound insulation properties, making it effective in reducing noise transmission between interior and exterior spaces. This feature is particularly valuable in urban environments, where minimising external noise pollution is crucial for occupant comfort and well-being. 

Laminated glass can help create quieter and more peaceful environments in residential, commercial, and institutional buildings.

Make the Best Choice for Your Environments With Eltham Glass

Safety glass, regardless of whether it’s laminated or tempered, plays a crucial role in ensuring the well-being of individuals and the integrity of structures. 

By understanding the distinct properties and applications of each type, you can make informed decisions when incorporating glass into your projects, prioritising both safety and functionality. 

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About the Author

Ryan

Ryan

Author

Ryan oversees Eltham Glass with a focus on professional glazing services, leveraging over 30 years of industry experience. As the leader of this Melbourne-based, family-run business, he maintains a commitment to quality and precision in every project. Specialising in a range of services from glass repairs to custom installations, Ryan's expertise ensures high standards and client satisfaction. His leadership has established Eltham Glass as a trusted name in Melbourne for both standard and emergency glazing solutions

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