Page 20 - INCOLA EXCLUSIVE DATA CATALOGUE

Sound Insulation

2.6.3 How Can Noise Have Harmful Effects?

The exposure to high level noise affects hearing, performance and personal safety in addition
to causing discomfort and bad temper. The exposure to higher than acceptable levels of noise
may cause a temporary loss of hearing.

Noise Level
Harmful Effects
(dB(A))
A person’s relation with the source of the noise, his job, emotional and physical state are factors
30-65
that determine whether that person is disturbed by this level of noise or not.
Not only psychic but circulatory disorders can be seen at this level of noise. It can be regardless
65-90
of a person’s sensitivity to noise or getting used to a noisy environment.
If this level of noise persists for a long time, it may cause permanent deafness. Its effect may
90-120
last for days.
≥120 Hearing ability at this level may be damaged for a short duration.

Table 9. Sound Safety Requisites of VDI 4100 Regulation

2.7 Noise Transmission to Adjacent Rooms by Pipe Clamps

Pipe clamps are significant in transmitting noises to adjacent rooms (neighbouring apartments).
The diagram below illustrates the transmission paths and parameters.

Sound level in the receiver room:
Sound level in the source room: airborne structure-borne transmission by the pipe
sound radiation caused by the sewage clamps
system
Key parameters:
Key parameters:
• Decoupling of structure-borne sound
• Materials of the sewage system by pipe clamps
• Weight of the sewage system
• Number and type of fittings
• Flow conditions
Source Room Receiver: Room requiring sound
insulation according to DIN 4109 standard
Installation Wall

Figure 8.Sound Transmission Paths of Sewage Systems in Buildings

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