Hollow Glass (Insulated Glass): Hollow glass consists of two or more glass panes separated by a spacer and sealed around the edges to create an insulating air or gas-filled space. This design enhances thermal performance by reducing heat transfer, making it energy-efficient for buildings. It also helps in sound insulation and reduces condensation between the panes.

Laminated Glass: Laminated glass is made by sandwiching a layer of plastic (usually polyvinyl butyral, or PVB) between two or more layers of glass and then bonding them under heat and pressure. This type of glass offers enhanced safety since, when broken, the fragments adhere to the interlayer rather than shattering. It also provides improved sound insulation and UV protection.

Tempered Glass (Toughened Glass): Tempered glass is produced by heating glass to high temperatures and then rapidly cooling it. This process increases its strength compared to standard glass, making it more resistant to impact and thermal stress. If shattered, tempered glass breaks into small, blunt pieces, reducing the risk of injury. It is commonly used in applications such as shower doors, glass doors and tables, and in buildings where safety is a concern.

Each type of glass serves different purposes in construction and design, contributing to safety, energy efficiency, and aesthetics.