Acoustic Enclosures, Acoustic Screens & Noise Control Products

Case Study - Roof Top Chiller Units

Kensington Attenuators

Noise Problem: 8 Number Twin Fan Roof Top Chiller Units

Noise levels at residential windows adjacent to the roof top chillers at a distance of 100m were being exposed to excessive chiller noise; a noise reduction of 20 dB was required.


In Line Duct Attenuators fitted to each chiller fan.

Result: 20 dB Noise Reduction



                                                 After (Side)

                                                  After (Above)


Dan Thomas MSc M.I.O.A

Sound Planning Ltd

TEL: 01252 711972

or email