A Common Plant and Household Item Could Lead to the Next Level of Sustainable Acoustics

A Common Plant and Household Item Could Lead to the Next Level of Sustainable Acoustics


Posted on Tuesday, 26th November 2013 by Eddy Goldsmith

By far the most common type of sound absorption material comes in the form of porous absorbers as they generally perform well over a broad frequency range unlike other types of absorbers.

This type of acoustic absorption is commonly used to improve the ‘Acoustic quality’ of spaces rather than insulate from intrusive noise due to their effectiveness at the higher end of the frequency spectrum.

Porous absorption works under the principle that airflow is reduced as it passes through their cellular structure and therefore sound energy is converted in to heat.

One of the drawbacks of porous acoustic treatment is that materials used are quite often difficult to manufacture and expensive. Classic acoustic porous absorber materials include fibreglass, rock wool open cell foams and wood fibre. A recent innovation from Mauricio Affonso however, consists of Acoustic panels made from the widely familiar Luffa plant, the dried fruit of which can be found in many bathrooms throughout the world used as sponges.

Luffa fibres form a complex network of cellulose that act like an open cell material similar to foam as well as being both extremely strong, lightweight, affordable and environmentally sustainable.

Not only do the INDIGO Acoustic Tiles boast a dramatic visual impact in any room they also provide surprisingly effective sound absorption properties. With the word ‘carbon footprint’ being thrown around more than ever these days anything that ticks all the boxes in terms of sustainability, practicality and aesthetics is bound to be a hit.

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