Sevenoaks Prep School

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SonaSpray K-13 Special noise reduction insulation spray for excellent sports and school hall acoustics

Noise reduction insulation spray

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School hall acoustic treatment

School hall acoustic solution

The problem

In 2005, work was completed on a new school hall.  This was intended to be used for sports lessons, assemblies, school, drama productions etc but it soon became apparent that due to poor school hall acoustics, the new hall was unfit for purpose.

With poor school hall acoustics, a teacher’s job can be made even more difficult.  Having to shout above a noisy class with acoustic reverberation levels this high, can lead to raised stress levels and in some cases, tinnitus.

The solution

Fortunately there is a solution for poor school acoustics.  Sevenoaks School contacted acoustic consultancy company, Sound Foundation Limited.  After thorough acoustic calculations, SFL recommended a sound absorber product called SonaSpray from Oscar Acoustics.  SFL and Oscar Acoustics’ technical department worked together throughout the project.  The main objectives were to not only control the schools acoustics problem, but to do this without compromising the halls feature ceiling.  Being a spray applied acoustic finish, SonaSpray follows the original lines and shape of any soffit, blending in or even restoring tired surfaces.

SFL and Oscar Acoustics agreed that 19mm of SonaSpray K-13 Special in white, applied to the corrugated steel soffit was ample to bring the schools acoustic problem well within regulations.  The work was carried out during the summer holidays and our Oscar Acoustics expertly trained operatives completed the spray process in just one week, making the hall available to use for summer play scheme activities.

The results - superb school hall building acoustics with minimum disruption.

View full sports hall acoustics page


This project uses

SonaSpray K-13 Special acoustic spray

SonaSpray K-13 Special acoustic spray

An attractive, seamless, spray applied acoustic finish with a medium texture available in standard and custom colours.

Acoustic ceiling spray ideal for use in offices, sports halls, public spaces, auditoria, classrooms, theatres etc.


Notting Hill Prep School | University College London | Blavatnik School of Government | Bath College Construction Skills Centre | University of Leicester | University of East Anglia | Hope Academy - Wilmott Dixon | King Ethelbert School | Oxford New College | Sevenoaks Prep School | St. Paul's Way Community School

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