Secondary Glazing for Nightlife & Pub Noise

Sound insulation from mass falls away as frequency drops. At 40-80Hz, doubling glass thickness buys you very little. What works is decoupling: two independent leaves separated by a deep air gap, so the system resonance sits below the problem band and attenuation rises above it.

This is why we specify the deepest cavity the reveal permits — 200mm or more — on nightlife-affected properties, and why we will tell you honestly when a shallow reveal limits what is achievable.

In practice, most complaints are not about the music at all — they are about twenty people talking outside a pub door at 23:30. Voice energy sits at 500Hz-2kHz, which acoustic laminate blocks extremely well. Crowd noise is usually the component that improves most dramatically.

If bass is arriving through a shared party wall or floor structure from a venue below, glazing will not solve it. Where the path is airborne through the window, a deep-cavity 10.8mm system typically removes crowd noise entirely and reduces perceived bass to a background level.