What are the sound insulation materials?

1. Insulating glass Insulating glass is composed of two or more layers of flat glass, and two or more pieces of glass are bonded with aluminum alloy frame or rubber strip with high-strength and good air-tight composite adhesive around. Leave a certain space between the sealing glass and fill it with inert gas to obtain excellent heat and sound insulation performance. Because the air enclosed in the glass has poor heat transfer performance, it can produce superior sound insulation effects. 2. Laminated glass refers to a PVB interlayer sandwiched between two or more pieces of glass, which can reduce the amount of noise penetrating the glass, thereby reducing the noise decibels and achieving a good sound insulation effect. 3. Sound-absorbing decorative board This is a new type of building material with good sound-absorbing performance, and it also has a certain flame-retardant and fire-retardant effect. Generally, it has a variety of colors and patterns to choose from.