Red Seal Glazier Practice Exam

What is a common feature of a laminated glass?

1. It is made of multiple glass layers bonded together

2. It is easy to scratch or break

3. It cannot be used in building construction

4. It is always clear without any tint

The correct answer is: It is made of multiple glass layers bonded together

A common feature of laminated glass is that it is made of multiple glass layers bonded together. This construction involves two or more sheets of glass that are interlayered with a polymer material, typically polyvinyl butyral (PVB), which is sandwiched between the glass layers. This bonding process not only enhances safety by preventing the glass from shattering upon impact but also provides sound insulation and UV protection. The interlayer holds the glass fragments in place when broken, minimizing the risk of injury and providing extra protection against environmental factors. The other options do not accurately describe laminated glass. For instance, laminated glass is specifically designed to resist scratching and breaking, unlike standard glass. It is indeed used in building construction for a variety of applications, including windows, facades, and skylights, making it quite versatile. Additionally, laminated glass can be manufactured with various tints and opacity levels, accommodating aesthetic preferences and energy efficiency needs. Thus, the defining characteristic of laminated glass lies in its layered composition which enhances its durability and safety.