Noise barrier, also called sound barrier, is a type of fence barrier used in the highway, railway, residences and other places for sound insulation and reduction. Perforated metal noise barrier with light weight, firm structure durable and other features are popular in both industrial and commercial applications. Here are the detailed information of noise barrier, refer to them and choose the perfect one you like.



 

Noise barrier is a three-layer structure.
The first layer is the perforated metal sheet The common material of perforated meta sheet is aluminum.Mild steel aalvanized steel or powder coated steel sheet are also available.The hole type of perforated metal sheet can be micro holes or louver holes.
The second laver is sound absorbing material infill.The sound absorbing material has excellent sound or noise absorbing performanceit can reduce the noise and keep quite.The main infill material is glass wool.Other absorbing materials are available
The third layer is metal sheet.The material of metal sheet is same as the perforated meta sheet.But there is no any hole onthe metal sheet.