Annealed vs. Tempered Glass: The Best Option For Your Home

by Greg on June 9, 2020

broken glass

When shopping for new glass panes, many Australians will likely go for those that promote safety. Then again, lots of Aussies will also take price into serious consideration.
In all likelihood, everyone will eventually end up choosing between annealed glass and tempered glass. The former, after all, is the most commonly used type of residential glass, while the latter is becoming more popular among Australian homeowners for a variety of reasons.
If you want to know the best option for your home, here are some facts about both types of glass that should help you decide.

Features and Benefits of Annealed Glass
Annealed glass, also referred to as standard or plate glass, goes through a thermal treating process called annealing, where glass is heated then cooled slowly to relieve any internal stresses that manufacturing brings on and toughen it.
Upon completion of the annealing process, the resulting glass will be tough enough to cut, drill, or polish, all without the risk of shattering due to internal stresses.
One of the best things about annealed glass is its affordability, which is made possible by the fact that it doesn’t go through a lot of processes.
However, when annealed glass does break, it will break into long, jagged shards that can cause a major safety issue in your home.

What Tempered Glass Has to Offer
Tempered glass is produced by heating single-ply glass to over 600 degrees Celsius, then making it go through “quenching,” a process that cools the glass rapidly, and at high pressure.
One of the most distinctive features of tempered glass is its strength. Tempered glass is a lot stronger than annealed glass. It will not easily crack or shatter.
When tempered glass does shatter, it will not break into deadly, jagged shards like annealed glass. When a strong enough impact breaks tempered glass, the whole pane will shatter into hundreds of small, dull-edged pieces that look like pebbles. That makes tempered glass the safer choice for homes. Tempered glass, by the way, is also known as safety glass, and it’s a name that it deserves completely.
Because of its strength, tempered glass is ideal for doors, windows that are less than two feet from a door or the floor, tabletops, and shower doors.

Comparing Annealed and Tempered Glass
Considering that annealed glass is cheaper, many homeowners will go for annealed glass. While it’s more affordable, annealed glass is quite more versatile and flexible than tempered glass. Its breaking point may be lower than that of tempered glass, but the edges of annealed glass can stand more stress.
Then again, tempered glass is so much stronger overall, and is designed to withstand strong winds as well as extreme heat and cold. Tempered is also quite resistant to scratches and everyday wear and tear.
There’s also the safety factor, which is extremely important for any home, especially one with children running about on a daily basis.
So which type of glass would you buy for your home?

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