Laminated glass is a sandwich made of one piece of plastic PVB between two or more glasses. It gives acoustic insulation as well as giving safety and protection from theft. Burglars often try to break windows to get inside the house or a buildings and here the laminated glass plays an important role in resisting their intrusion. A Laminated glass is regarded as a safety glass by most of the standards. Ordinary window glass is brittle, breaking into long sharp pieces which can cause serious injuries. The principal feature of laminated safety glass is that the interlayer absorbs the energy impact and hence resists penetration. Although the glass may break, the glass fragments remain firmly bonded to the interlayer, minimizing the risk of injuries.