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  5. Acoustic

Acoustic Comfort

All around the world, general noise is at an alarmingly high level. Exposed to the soundtrack of modern day life, you are bound to reach your tolerance level rather quickly.
 

It’s a well-known fact that noise pollution not only makes relaxation more difficult, it also brings about physical stress, in some cases causing pain and can ultimately pose a serious health threat.


Today, any kind of protection from noise definitely helps to improve your mental and physical well-being.
 

Ambient Noise Levels


There are different types of sound sources, namely airborne and structure borne. Airborne sound describes the sound that directly radiates from a source and travels through the air, e.g. neighbours’ voices, traffic noise or the sound radiated from a home cinema next door. The second type of sound, such as banging, drilling and rolling noise, is mainly transmitted via the structure of the building itself, which is why it’s called structure-borne sound. 

In order to block out ambient noise, external walls, roof and windows need to be adequately insulated. In addition, the sound propagation in a room is different from the sound propagation in a free field as sound is reflected from hard surfaces and can negatively influence a room`s acoustics. Carefully designed internal walls, floors and ceilings can absorb the noise produced within the room itself. It is also important to effectively insulate sound carriers such as ventilation systems. 

When specifying acoustic insulation it is important to check the product’s Noise Reduction Coefficient (NRC Value), which is a general indicator of its ability to dissipate sound and to what degree this is achieved. 
 

For a successful acoustic site, it is necessary to follow 6 stages:

 
  • Identify the type of noise (interior or external air-borne, impact, equipment noises) ;
  • Identify the cause of the noise, the surfaces through which it is transmitted in order to treat them;
  • Assess the intensity of the noise perceived (in dB), define the maximum level of noise acceptable for premises or housing and thus define the insulation input needed;
  • Identify the nature of existing surfaces to be treated (breeze blocks or hollow bricks, concrete, cellular partitions, plaster boards, wooden or hollow flooring, etc.) ;
  • Choose the appropriate solution and performance for the type of surface.
 

Sound insulation performance


The mass-spring-mass system ensures top performance in the sound insulation of adjacent rooms by
Combining optimum acoustic protection
 
The massspring-mass principle involves:
 
  • Two partition leaves made of gypsum boards
  • With a air spring cavity in-between
  • A special sound-damping glass wool acts as the spring
 
A mass spring-mass system does not only feature unique lightness, flexibility and maximum efficiency. Thanks
Its superior properties achieves much better thermal insulation values than conventional massive construction methods.

Acoustic Comfort

Acoustic

Noise Level Scale

Noise Level Scale

Speed of sound in different materials

Speed of sound in different materials
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