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Main features to specify when getting acoustic louvres made

Supplier: Noise Control Engineering
04 November, 2013

Certain buildings, factories, or big plant rooms, can create sound pressure levels that go beyond the existing or required noise criteria prescribed in specific locations.

To address the reduction of noise egress, an acoustic louvre will have to be mounted behind a louvre panel. But aside from enabling noise reduction, an acoustic louvre can also assist with ventilation, which means that construction of this important feature will require great consideration. This will guarantee that the intended purpose is met and that establishments that use it can expect longevity.

The first thing to consider before getting acoustic louvres made is where they will be used. Applications for the acoustic louvre are generally for refrigeration machinery, underground or enclosed car parks, processing plants, plant rooms, cooling towers, and the like. Because it will come in two standard ranges and it can be made in different metals, it is critical that the application be determined at the design stage. Doing so will guarantee the best noise control and economical solution. It should be pointed out that retrofitting is not only quite pricey but may also disrupt operations.
The two standard ranges for acoustic louvre panels are the R type and the LP type. The choice will depend on the required acoustic performance; the R type delivers maximum noise acoustic performance, with normal pressure drop while the LP type gives the normal acoustic performance, with minimum pressure drop. Some manufacturers may also add perforated underside for maximum sound absorption.

While construction of these noise-reducing panels will be determined by its application, it is recommended that businesses specify acoustic louvre panels to be weather-rated and vermin proof. A non-combustible acoustic fill should also be requested for added safety.

As for the materials used, most businesses might have their acoustic louvre panels made from galvanised mild steel. But it can also be made from other metals such as aluminium and stainless steel.

Another main feature to specify in the construction of acoustic louvre panels is the blade styles. It would be ideal to complement the scale and aesthetics of the building or structure where it will be mounted. In addition, some consideration should also be placed on blade orientation as this, too, can have bearing on the overall look of the building as well as have an affect on acoustic performance.

Finally, businesses should also specify bird or insect screens for their acoustic louvre panels as additional forms of protection.