Noise control and sound insulation

 

The emergence of various bad effects of noise on people over time and the increasing spread of information on this subject have made noise control one of the most important issues of building physics.

Noise control has two important features:

1. Difficulty, that is, success is not easy,

2. Expensive, that is, the necessary measures often require substantial expenditure.

For these reasons, noise control should be carried out in a planned manner and by carefully calculating everything. For this, a noise control plan has been established. Skipping some steps in this plan may result in failure or in overspending.

Noise control,

• elimination of unnecessary noise sources,

• reducing the noise of the essentials,

• preventing the spread of noise to the environment

requires that successive stages be dealt with sequentially. Soundproofing is one of the last of these steps of the noise control plan. In other words, it is a certain part of a whole plan and should never be considered alone, the event should be approached with a noise control plan. The bad effects of all kinds of noise, from traffic, industry, construction and similar noises to technical equipment noises inside buildings and neighbor noises, can only be reduced sufficiently with the least expenditure as a result of such a study.

Another important point is this. Noise should be reduced sufficiently with meticulous measurements and calculations, and should not be reduced more than enough. Because that would mean big expenses for nothing.

Municipal officials, who are responsible for implementing the Regulation on the Protection of Buildings Against Noise, which has been in force in our country for a while, have to help with external noise sources, ie outside our control.

What is understood from sound insulation is the isolation of vibrations (ie air vibrations) that comply with the definition of sound, that is, that can be perceived by the ear. Whereas, for example, a motor, a fan, or any vibration source firmly attached to a concrete slab makes this slab vibrate as a whole. The new flooring enters the noise source state like the speaker membrane. In this case, the event is not a soundproofing event, but an event related to the previous steps of noise control.

In conclusion, it can be said: Noise control is a very complex subject of expertise. Soundproofing is part of the noise control plan. The subject should be approached within this framework.