Building Acoustics

Acoustic ratings help designers compare sound insulation, impact sound and absorption performance. This guide explains common terms including Rw, DnT,w, L’nT,w and αw.

Pre-completion sound testing checks whether separating walls and floors provide the sound insulation required by Approved Document E. Learn when testing is needed and how it works.

Good architecture needs to work acoustically as well as visually. This guide explains how sound insulation, room acoustics, building services and external noise influence building design.

Sound cannot be drawn in the same way as a wall or window, but acoustic requirements can still be built into plans, details, schedules, specifications and BIM models.