Why would a glass shower door shatter?
Answer
Glass shower doors can shatter without warning due to several reasons. Here are some possible causes:
- Incorrect Installation: Improper installation can lead to the door slipping out of its hinges or off its track, causing it to break23.
- Microscopic Imperfections: Tiny imperfections within the tempered glass can develop into larger cracks over time, leading to sudden breakage4.
- Edge Damage: Damage to the edges of the door can cause it to shatter. This damage can be microscopic or result from improper handling4.
- Nickel Sulfide Inclusions: These inclusions in tempered glass can gradually grow and put stress on the shower panel, causing it to break spontaneously3.
- Abusive Treatment: Rough openings and closings, or improper cleaning, can cause cracks that eventually lead to the door shattering1.
- Unknown Defects: Sometimes, a small fracture can occur on the edge of a shower door that won't immediately cause it to shatter. Hours or days later, the door will then explode, creating the appearance of a spontaneous blow1.
References
1. Shattered! The danger hanging in your bathroom - NBC News2. What Causes Glass Shower Doors to Explode3. Exploding Glass Shower Doors? What to Know4. Consumer Beware: Glass Shower Doors Can Shatter Suddenly5. Breaking Glass Shower Doors & Enclosures - Chicago Window Expert
Author: CNA Insider
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Key insights
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The first few drops of water can cause tempered glass to shatter due to rapid cooling and contraction, creating tension in the glass layers.
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Laminated glass may shatter when hit, but it shouldn't fall apart, prioritizing safety.
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