Soundproof Acoustic Plasterboard

What is Acoustic Plasterboard?

Acoustic plasterboard is a type of plasterboard specifically designed to enhance sound insulation in buildings. It incorporates a dense core and often additional layers or materials that absorb and dampen sound, reducing noise transmission between rooms and from external sources, ideal for use in bedrooms, offices, and multi-occupancy buildings. Acoustic plasterboard provides both the standard benefits of regular plasterboard—such as ease of installation and a smooth finish for decorating—while significantly improving acoustic performance for a quieter, more comfortable living or working space.

How to Install Acoustic Plasterboard?

To install acoustic plasterboard, begin by measuring and cutting the boards to fit the wall or ceiling dimensions. Secure the boards to the wooden or metal studs using appropriate drywall screws, ensuring a tight fit to minimise gaps. For enhanced sound insulation, apply an acoustic sealant around the edges and any penetrations, such as electrical outlets. Use jointing tape and jointing compound to cover seams and screw heads, creating a smooth, seamless surface. Once the compound is dry, sand it down for a smooth finish. Dot and Dab should not be used for the installation of acoustic plasterboard. 

Types of Acoustic Plasterboard 

We offer a range of different acoustic plasterboards, though some of the most popular are Knauf Soundshield and British Gypsum Soundbloc. Typically, they are heavier and denser than general use plasterboard, which creates the acoustic insulating properties. Though some brands may quote a specific acoustic performance, some are reluctant to provide a specific number as the performance of a board is reliant on the entire structure the board is a part of - so calculating acoustic performance is best done as a calculation for the entire wall or ceiling envelope. That said, “blue” plasterboard of varying brands tend to be largely the same in terms of construction.

We also offer an acoustic “plank” plasterboard that, in addition to being denser than general use plasterboard, is also thicker - at 19mm, which will generally increase the acoustic performance.