There are various glass finishes available in the world of glass balustrade systems, but which is the right one to use?
The quick answer is that it depends on the balustrade's style, location, and use.
UK safety regulations mandate that all glass used in railings and balustrades must be safety glass, which can either be toughened or laminated.
These two types of glass are made differently and respond uniquely when broken.
Toughened Glass
Toughened glass undergoes a process called tempering, where it is heated to approximately 700°C and then rapidly cooled, known as quenching. This treatment creates a robust outer layer while introducing internal tension in the glass core.
As a result, toughened glass is about four times more impact-resistant than standard float glass. It doesn’t form large, sharp shards in the event of breakage. Instead, it crumbles into small, less hazardous pieces, significantly reducing the risk of injury.
Laminated Glass
Laminated glass is created by layering a plastic or resin interlayer between two or more glass panels. Its construction can vary by manufacturer, using regular float glass, toughened glass, or a combination of both.
When laminated glass is subjected to impact, it may crack but is designed to prevent penetration through the central interlayer, ensuring safety and structural integrity.
In the UK, toughened glass remains the most commonly used balustrade material.
However, laminated glass is rapidly gaining popularity, especially in high-rise buildings, reflecting the industry's shift towards safer and more durable construction materials. In contrast, laminated glass is the preferred choice in many European countries, as single-pane toughened glass is not permitted in certain regions for safety reasons.
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