Using an aerodynamic structure designed to reduce sound pressure, acoustic louvres provide attenuation (noise reduction) while maintaining the required airflow.

  • Typically used in building openings
  • Reduce airborne noise, while allowing continued airflow and ventilation
  • Can be used as acoustic screens around mechanical plants where equipment requires airflow
  • Often found in boiler and plantrooms in residential areas or on rooftops
  • Industrial applications include power stations, cooling towers, chemical treatment plants


Tested in laboratory facilities at SRL in Suffolk, Sound Planning supplies and installs acoustic louvres for heating, ventilation and air conditioning applications in plantrooms. A Sound Reduction Index (SRI) for each louvre type can be published upon request.

Louvre Container
Louvre London
Louvre Stairs
Louvre Door and Wall
Louvre Closed Door
Louvre Open Door
Louvre Outside
Louvre Door
Louvre Container Louvre London Louvre Stairs Louvre Louvre Door and Wall Louvre Closed Door Louvre Open Door Louvre Outside Louvre Door


Acoustic Louvre 1


  • Rugged and durable material
  • Long lasting
  • Dummy sections, non-acoustic
  • Bird mesh on the rear
  • Special fixing details, e.g., external/internal flanges
  • Different construction options:
    • standard units to be installed in building work openings
    • bespoke units to suit a wide range of different requirements
  • Provides good ventilation
  • Gives protection against the weather
  • Acoustic infill materials that help to reduce noise levels
  • Single or double banked depths

Acoustic louvres can be supplied in five different depths (overall reductions):

  • 150mm (Rw 11dB) NR 17dB
  • 270mm (Rw 12dB) NR 18dB
  • 300mm (Rw 14dB) NR 20dB
  • 300mm (Rw 16dB) NR 22dB
  • 540mm (Rw 22dB) NR 28dB

Acoustic louvre panels (overall reductions):

  • 50mm (Rw 32dB) NR 38dB
  • 100mm (Rw 34dB) NR 40dB

Units can be supplied in a variety of finishes to suit the application:

  • Pre-finished galvanised sheet steel or aluminium
  • Polyester powder paint (RAL or BS colours)
  • Plastisol
  • Anodised (aluminium only)



The standard models are classified into two types:

  • Type R
    • Pressure drop: normal
    • Acoustic performance: optimum
  • Type LP
    • Pressure drop: minimum
    • Acoustic performance: normal





Our louvre door systems provide access to plant rooms, reducing noise levels by 17dB to 22dB. They are supplied with:

  • Lockable hardware
  • 150mm to 300mm depth
  • Box section frame
  • Painted in RAL or BS
  • Hinged on either side
  • Installation services


Acoustic Louvre Screen 2.5m

Louvre screens reduce noise by creating a different path for the noise source going to the receiver.

  • AC plant screens
  • Generator screens
  • Chiller screens

Other Services

  • Noise reduction calculation services
  • Full installation
  • CAD drawings


Contacts Us

For all enquiries, please call 01252 711972 or email us at

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