Noisy classes are bad for you

13th March 1998 at 00:00
Excessive noise is raising teacher stress levels, damaging their voices and impairing pupils' learning, a study of 60 primary and special school classrooms has found.

Every classroom had a noise defect and newly built rooms, especially in open-plan schools, were worse than old rooms.

The study, by researchers at Heriot-Watt University's department of building engineering and surveying, recommends teachers should be more aware of the effects of noise and attempt to soften their rooms. Lowered ceilings, wall tiles, curtains, carpets and displays lessen the clatter.

Sharon Airey, research associate, said all rooms suffer from at least one aspect of poor acoustics. Noise can come in from outside the school or classroom or from anything from computers to scraping chairs. "The way classes are taught in little groups generates a lot of noise," Ms Airey said.

Sound tends to reverberate round rooms with big windows, high ceilings and bare floors. "This helps to slur teachers' speech and it is difficult to hear clear words. If the background noise is 65 decibels, the teacher has to raise their voice 10-15 decibels above that. The teacher will have to speak at 75-80 decibels to make themselves heard clearly and teachers are complaining of sore throats," she said. Normal speech is between 40-50 decibels.

Most schools in the study were in Scotland but Ms Airey contrasted a school in Hampshire built three years ago with one built in 1830. "The new school was worse than the old school, especially with open plan," she said.

With backing from Ecophon, a suspended ceiling company, Ms Airey is to study the psychological effects of noise. Findings so far indicate that it affects stress and concentration levels, memory and children with hearing and visual impairments. Pupils who have colds will also suffer hearing loss, accentuated by poor acoustics.

Ms Airey said schools should have proper acoustics built into them. "Teachers should be more aware of the problem to start with and if they can, do something about it," she suggested.

Log-in as an existing print or digital subscriber

Forgotten your subscriber ID?


To access this content and the full TES archive, subscribe now.

View subscriber offers


Get TES online and delivered to your door – for less than the price of a coffee

Save 33% off the cover price with this great subscription offer. Every copy delivered to your door by first-class post, plus full access to TES online and the TES app for just £1.90 per week.
Subscribers also enjoy a range of fantastic offers and benefits worth over £270:

  • Discounts off TES Institute courses
  • Access over 200,000 articles in the TES online archive
  • Free Tastecard membership worth £79.99
  • Discounts with Zipcar,, Virgin Wines and other partners
Order your low-cost subscription today