Specialists in Industrial Acoustic Engineering


In many cases an existing building/room is used to house the standby generator and associated equipment. This means the building fabric is used as the enclosure containment with attenuation and ductwork used to bring air in and out of the room. The size of attenuation is determined by the noise requirement and air flow required to keep the generator cool.

The attenuators are made from 1.5mm galvanized/zintec casing Attenuating splitters are constructed from a formed framework and incorporate a highly absorbent, inert mineral wool infill with a normal density of 48 Kg/m2 held in place with a pre-galvanised perforated mild steel sheet facing to the airway surfaces.

The straight through design coupled with resonant cavity absorptive splitters gives maximum noise reduction with minimum resistance to airflow.

Where the fabric of the room will not meet the noise requirement we offer acoustic panels for lining the walls and ceiling

Access to the room is normally through an acoustic single / double door which can be used for equipment installation / removal. In some cases the door can be fitted with the attenuation built in.

The door is manufactured from high quality 1.5mm Galvanized sheet steel, panel infill 50mm thick with an inner face of perforated pre galvanized sheet and incorporating the necessary strengthening to accept the door furniture. The hinges and external handles are chrome plated heavy duty slam type with panic release button internally. Each door incorporates an acoustic seal, which compresses on closing to maintain the acoustic integrity.


  • Weather louvres
  • Motor louvers
  • Gravity louvers 
  • Windows 
  • Exhaust system

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