Red Seal Glazier Practice Exam

What type of glass is often used for shower enclosures?

1. Annealed glass

2. Tempered glass

3. Frosted glass

4. Double-glazed glass

The correct answer is: Tempered glass

Tempered glass is the appropriate choice for shower enclosures due to its enhanced safety and durability. This type of glass undergoes a special heating and cooling process that significantly increases its strength, making it resistant to thermal stress and breakage. In the event that tempered glass does shatter, it breaks into small, blunt pieces rather than sharp shards, reducing the risk of serious injury. While annealed glass is a less expensive option, it does not possess the same level of safety and strength as tempered glass, making it unsuitable for areas where it might be subjected to significant impacts or temperature fluctuations, such as in a shower. Frosted glass serves a different purpose, primarily focusing on privacy and aesthetics, rather than strength or safety. Double-glazed glass, which consists of two layers of glass with an insulating space in between, is typically used in windows to improve energy efficiency rather than in wet areas like shower enclosures. The superior properties of tempered glass make it the ideal choice for ensuring safety in bathroom environments.