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Safety & Security Window Films allow you to upgrade your glass to code for a fraction of the cost of a full glass replacement.
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They’re an unobtrusive and affordable way to hold glass shards together when the window is damaged, preventing the glass from harming those inside and slowing entry.
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These multi-layer films significantly improve glass windows and doors’ protective capabilities, making them harder to penetrate, whether by forced entry or flying debris. In the tempered glass window film debate, window film tends to win out for a number of reasons. One of the main alternatives to tempered glass is window film. If these disadvantages sound like they may be a deal-breaker for you, know that there are other window treatments that provide a sound alternative to tempered glass. Damage to any part of it will cause the entire glass sheet to shatter, so precision and custom installments are key to using tempered glass. All sizing must occur before the annealed glass is treated because once it is tempered, it is too susceptible to breakage to be cut or adjusted. Motivated intruders may find it easier to gain entry because a single force can cause the entire window to fall apart.Īdditionally, it’s impossible to re-size, re-cut, or re-shape tempered glass once it has undergone the tempering process. Since the glass is designed to shatter entirely upon impact, it can pose a security risk. One of the main advantages of tempered glass, its ability to shatter into tiny pebbles, can also be seen as a disadvantage.
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That’s why you may see tempered glass used in situations where high temperatures are likely to cause glass to break like in fireplace doors or kitchen appliances. The tempering process also makes tempered glass more resistant to damage from higher temperatures. For this reason, it shouldn’t be used to prevent intruders, but it will stand up to more force than regular glass. While the manufacturing process does make tempered glass more resistant to force, it is not shatterproof glass or unbreakable in any way. What is Tempered Glass Used for?Īlso known as “safety glass”, tempered glass is often used in car windows, shower doors, glass tables, and other installations where increased safety standards are necessary. Tempered glass is often referred to as “safety glass” for its ability to prevent spall and keep building occupants safe. Regular, untreated glass is known to shatter into sharp pieces called spall, which are a significant cause of injury in the cases of extreme weather or attacks like bomb blasts.
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These competing forces are what make tempered glass so much stronger than annealed glass.ĭue to the tempering process, when this type of glass is broken, it breaks into small, rounded chunks instead of sharp, jagged shards. As a result, the inside remains in a state of tension, while the outside goes into a state of compression. This cools the outer layers of the glass much more quickly than the internal layers, so when the inside cools, it pulls away from the outer layers. The glass is heated in a furnace to over 1,000 degrees Fahrenheit and then quickly cooled using high-pressure air blasts. Regular, annealed glass undergoes a thermal tempering process that increases its strength and changes its composition to shatters differently. Manufactured through a process of extreme heating and rapid cooling, tempered glass is much harder than standard glass. When shattered, tempered glass windows can help protect a building’s occupants and equipment from the hazards of large shards of fragmented glass debris.īelow, we discuss what makes tempered glass different from standard glass and its key benefits and potential downfalls. By design, when broken, tempered glass disintegrates into small pieces and is much less likely to do harm. In short, tempered glass is heat-treated, making it about 4x stronger than regular, annealed glass. Much of the glass that’s used for residential and commercial applications is tempered safety glass.