North Carolina Home Inspector Practice Exam

Insulated glass dual glazing is also called?

1. Strengthened glass

2. Tempered glass

3. Low-E glass

4. Safety glass

The correct answer is: Safety glass

Insulated glass dual glazing is commonly known as safety glass. This type of glass consists of two panes that create an insulating layer of air or gas in between, which enhances thermal efficiency and noise reduction. The term "safety glass" often refers to glass that is designed to reduce the risk of injury when broken. This can include laminated or tempered glass, which are both types of safety glass due to their enhanced structural integrity and reduced likelihood of shattering into sharp shards. While options such as strengthened glass and tempered glass refer to a specific processing of glass to make it more resistant to breakage, and low-E glass pertains to a coating that reflects infrared light to improve energy efficiency, these terms don't specifically denote the function of dual glazing as insulated glass. Thus, safety glass is the term that best encompasses the characteristics and applications associated with insulated glass dual glazing.