Acoustic Glass (Laminated Side Windows)

It is used in many windscreens and, on some cars, in the front side windows. It makes the cabin noticeably quieter at motorway speeds. Laminated side windows are also harder to break into. It also gives some protection against ultraviolet light.

A special plastic film between the glass layers absorbs sound vibrations before they reach the cabin.

Replacement glass should be the same acoustic type, or the cabin may become louder. Markings in the corner of the glass usually show whether it is acoustic or laminated.