If you live near a busy road or railway line, or under a flight path, you may want to use noise-reducing glass. Depending on the required level of reduction, there are various ways this can be achieved, including the use of specially developed laminated glass.

Most new doors are designed to seal out draughts much more effectively than the original ones. A good air seal can significantly reduce noise levels. However, two panes of glass do not necessarily improve the acoustics due to sympathetic resonance between the panes. Selecting glass of different thicknesses can mitigate this issue.

However, not every door can accommodate thick glass for noise reduction purposes, so NSG Group makes Pilkington Optiphon™ glass that can achieve superior performance while keeping the thickness and weight of the glass down.

A common mistake when selecting acoustic performance is trying to reduce ambient noise to zero. Even in a bedroom, there should be some background noise; otherwise, other household sounds, such as central heating pumps, can become intrusive.