Recent studies have shown that many classrooms have poor acoustics. As a result, children with normal hearing are often unable to make out what is being said in class. While adults will guess at missing words, children find it much harder to fill in the gaps and their educational development can suffer.
Building Bulletin 93
All school buildings are now subject to detailed design checks and on-site inspections by building control officers. The aim of Building Bulletin 93 is to provide a simple but comprehensive guide for architects, building control officers, building services engineers, clients, and others involved in the design of new school buildings.

Section 1 of Building Bulletin 93 describes the 'Specification of acoustic performance'. This section gives the performance targets for compliance with the Requirement from Part E of the Building Regulations 2000 (as amended):

'Each room or other space in a school building shall have the acoustic conditions and the insulation against disturbance by noise appropriate to its normal use.'

BRE's Acoustics Centre, funded by the DfES, has developed an Excel spreadsheet to help designers carry out calculations of façade insulation and reverberation times in rooms. The spreadsheet is available for use from this site.

To download the file, click here. This file is a Zip archive of a Microsoft Excel Spreadsheet.
(version 2.02 of the spreadsheet, Nov 04, includes modification to function with Excel 2002 SP3)

(Note: the spreadsheet requires Microsoft Excel 97 or later, and will not run on Mac systems.)

BRE will not be liable for any direct, consequential, incidental or special damage or loss of any kind (including without limitation loss of profits, loss of contracts, business interruptions, loss of or corruption to data) however caused through the use of this software.