How many types of glass are typically used in construction?

In construction, glass is categorized into several types based on its properties and applications. Typically, the commonly recognized types of glass used in construction include:

1. Annealed Glass: This is standard glass that has been slowly cooled to relieve internal stresses. It is often used where safety is not a primary concern.

2. Tempered Glass: Also known as toughened glass, this type is heated then rapidly cooled, making it much stronger and safer. It shatters into small, blunt pieces rather than sharp shards, which is crucial for safety in building applications.

3. Laminated Glass: This type consists of two or more layers of glass bonded together with an interlayer, often used for safety and sound insulation. It helps hold the glass together if it shatters.

These three types cover the most commonly referenced categories in construction contexts. However, beyond these, there are special purpose glasses like insulated glass or low-e glass which may be counted in broader discussions of glass types. This variety in applications and properties leads to the classification of glass into what could be interpreted as four or more types depending on the level of detail of the discussion.

Thus, three primary types of glass are typically recognized in construction contexts, and