What is acoustic glass and when should I specify it?

Acoustic glass is a laminated glass designed to cut noise. It’s made from two (or more) panes bonded together with a special acoustic interlayer that dampens sound vibrations as they try to pass through the glass, reducing the noise that reaches the room. It can be combined with low-E and toughened/laminated specifications, so you don’t have to trade off thermal performance or safety to get it.

It’s worth specifying wherever unwanted noise is a concern — homes on busy roads, near railways or flight paths, in town centres, or any room where peace and quiet matters such as bedrooms and home offices. Using different glass thicknesses within the unit improves performance further, because the two panes then absorb a wider range of sound frequencies. If noise reduction is a priority on your project, mention it when you order and the SevenDay team will specify a suitable acoustic build-up. Don’t forget that noise can also be transmitted through the trickle night vent so if noise reduction is critical and the window is in need of background ventilation then ensure you look to add a acoustic night vent (note these are larger than a standard vent and are often muted as being unsightly).