Acoustic insulation

When silence is golden...

It is good to be at home safely shielded from deafening noises... well insulated walls and roof... high quality windows... acoustically insulated should mean “perfectly soundproofed”. However, in a building, sound is transmitted both by air and through the building structure. Footstep sounds are often transmitted through the structure. Sounds such as voices or music are more likely to be airborne. Sounds through the structure occur when for example, footsteps cause solid objects such as floors to vibrate, and these vibrations are transmitted through the structure to other objects via airborne sound sources.

Insulation and decoupling

In a new building, good sound insulation begins by taking structural steps as early as the planning stage. The most efficient way to control footstep sounds is through so-called decoupling. This technique consists e.g. in fixing the staircase to the wall, or installing a suspended ceiling with isolation joints etc.

In renovation projects it is also possible to achieve good acoustic insulation by taking certain measures. Shock noise insulating products, multi-layer wall linings, as well as special high surface mass soundproofing boards are extremely useful in this respect.

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