Reasons behind why shower glass doors explode and how to stop it
(CBS 12) —
You probably don't think of taking a shower as a particularly dangerous experience, but that's what a lot of people thought just before they found pelted by tiny shards of glass.
Jason Jones said his shower door exploded in his hands while he was replacing the rollers.
“I was just holding it in my hands like you or anyone else would,” he said.
Jason said his hands and arms were gashed, and bleeding.
We found that his experience is far from an isolated one.
More than 2000 people visited an emergency room in the past five years due to shower doors unexpectedly shattering, according to public records from the Consumer Product Safety Commission.
Glass expert Mark Meshulam said shower doors are made from no ordinary glass.
Federal law demands they be constructed from safety glass. More often than not, that means tempered glass.
“Tempered glass has within it a huge amount of energy,” Meshulam said.
Tempered glass is like a bomb. All that stored-inside energy is trying to get out.
At the smallest nick, the glass is designed to blow into thousands of itty-bitty pieces, rather than large shards that could severely cut someone - especially someone in the shower without any clothes to stand in the way.
But, those small glass shards are still sharp.
Meshulam said glass can shatter thanks to a poorly installed towel bar, slipping off the track and smacking the tub or the glass could break all by itself.
During the manufacturing process, microscopic pebbles, called nickel sulfide inclusions, sometimes get trapped inside the glass.
As the glass and pebble gently expand and contract in the heat of a bathroom, the inclusion can weaken the glass until: BOOM!
But, before you throw out all your glass doors for shower curtains, Meshulam said there is something you can do to make your shower doors safer.
Installing a thin safety film over the glass can hold the shards together after the door breaks.
Please watch the attached story for a demonstration of a shower door breaking as well as how it holds together with the safety film.