Insulated Glass is made up of two or more pieces of glass separated by spacers, which are sealed to form a unit. There is one or more gas-filled space(s) in between, filled with inert gas. It has good thermal insulation, heat insulation, and seismic resistance.
As its name implies, laminated glass is made up of two or more pieces of glass with an elastic material, usually a PVB film, sandwiched between them. Laminated glass can hinder and buffer the vibration of the glass, achieving the effect of noise reduction.
The thickness of laminated glass is usually between 8-20mm, while the thickness of hollow glass can be customized according to requirements. The sound insulation and fire resistance of laminated glass are better than those of hollow glass, while the thermal insulation, heat insulation, and seismic resistance of hollow glass are better.
One of the most significant advantages of laminated glass is its enhanced safety and security features. Laminated glass is composed of two or more layers of glass bonded together with a layer of clear or tinted polyvinyl butyral (PVB) interlayer. This interlayer holds the glass layers together, even when shattered. As a result, the glass remains in place, reducing the risk of injuries from flying glass shards during impact or breakage. It is often used in applications where safety is a priority, such as car windshields, skylights, and windows in areas prone to natural disasters. Laminated glass can offer some level of fire resistance, depending on the specific composition and thickness of the glass layers and interlayer. It can help contain flames and prevent the spread of fire in certain scenarios.
Sound is transmitted through vibrations in the air. When sound waves reach the laminated glass, they cause the glass layers to vibrate. However, the PVB interlayer is viscoelastic, meaning it can absorb and dissipate the energy from these vibrations. As the sound waves travel through the glass, the interlayer dampens the vibrations, reducing the intensity of the sound.
Therefore, it is most appropriate to choose laminated glass as window glass.