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How does soundproofing work?

How does soundproofing work?

How does soundproofing work?

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How does soundproofing work?

There are 4 main principles for improving soundproofing in a building.

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The Mass
The thicker and heavier the materials, the less they vibrate and the more they block sound.
This is why we often see a thin concrete screed over a wooden floor structure. Combined with an acoustic membrane, this mass contributes to the “mass-spring-mass” alternation.
Such a combination allows both absorption and resilience of vibrations.

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Material Density
The more dense a material, such as steel, the higher its vibration frequency will be. This means that it will carry sound more easily.
In the case of less dense materials, wood for example, their frequency of vibration is lower, so their sound conductivity is decreased.

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Distancing
Direct contact between rigid materials amplifies sound and vibrations.
Spacing the materials from one another, ensures that the displacement of vibrations will be reduced.

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Cavities
Cavities in a building amplify sound transmission, as well as smooth and hard surfaces that reflect sound waves.

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