Ventilation and air conditioning units can create noise as they usually have large external units, which may be roof-mounted and without any kind of shielding. Often they are fan-driven with the fans cutting in and out at random during the day and night.
How can you control this type of noise?
- For new-build or refurbishment consider the provision of sound attenuaters and the siting of plant and machinery.
- Position them so that the building structure provides as much screening as possible to the nearest noise-sensitive premises.
- Machinery should be mounted on anti-vibration mounts and/or provided with an acoustic enclosure or additional acoustic screening.
- You may need to seek the advice of a noise consultant regarding their siting and/or screening.
- Ventilation systems should include extract and intake grille silencers.
- Timing clocks may be added to plant and machinery to switch them off during the night.
- Arrange regular maintenance contracts to ensure the smooth functioning of ventilation and other equipment.
If you have a complaint regarding noise from an air conditioning unit contact Environmental Health Services on (01284) 757053.
