​Bruksområder for Kaimann produkter






​Bruksområder for Kaimann produkter



​​​​​​​​​​​Acoustic Applications

Every modern building utilises mechanical services to heat, cool and ventilate, to supply fresh water and remove waste water and to generally make buildings comfortable spaces in which to live. Noise generated by the essential mechanical services can however impact on occupants health and well being and noise control measures should always be an important consideration.

​In practice solving all noise problems requires a combination of techniques of the following four categories:



Acoustic absorption

When airborne noise passes into an acoustically absorbing foam the sound wave is dissipated. By selecting the absorption profile of the noise with that inside an enclosed space the noise level can be significantly reduced. In many cases the absorbing lining must be free of dust and fibres or actively resist mould growth.

Barrier to sound

Dense barrier materials prevent the passage of noise by reflecting sound waves back. In this way barrier materials can encapsulate noise and are best deployed in combination with absorbing linings to trap and then dissipate the sound wave. Traditional barriers include lead and bitumen but modern flexible polymeric barriers are safer without compromising performance.

Vibration decoupling

Noise travels through solid materials in the form of vibration and can move from one surface to another wherever there is direct physical contact – such as between a pipe and a pipe hanger – with vibration in one surface exciting vibration in the other. Acoustic bridges of this type account for a high proportion of noise breakout. Flexible visco-elastic materials break the direct physical contact and prevent break out through vibration.

Noise damping

Where a surface cannot be acoustically decoupled the level of noise radiated can begreatly reduced by applying a visco-elastic noise dampener directly to the vibrating surface.