Lessons learned from acoustic testing in schools in the south-west of England

摘要

Results from acoustical testing in schools have revealed the following common problems and possible solutions.rn1. Noise ingress is highly site-dependent. Ingress with unattenuated natural ventilation can be minimised by providing cross-ventilation to reduce the areas of opening required. Modelling open windows as non-attenuating holes matches well withrnsite measurements.rn2. To be compliant, mechanical ventilation systems need to incorporate appropriate levels of acoustic attenuation. Wall or ceiling-mounted fans are unlikely to comply.