Soundproofing
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INSONORISATION

updated: 19/12/2016

 

The soundproofing focuses on reduction of the noise transmission between two enclosures or in general, between one enclosure and the other. The soundproofing modifies the difference between sound pressure level L1 in a transmitting room and sound pressure level L2 in a receiving room.


GENERATOR ROOM SOUNDPROOFING

The type of noise produced in big diesel engines, such as power stations that this report is about, is a noise of low frequency, in other words, with a significantly large acoustic energy in the frequency range of 8 to 100Hz. It is a type of noise very difficult to damp and is propagated easily in all the directions.


MEETING ROOMS - SOUNDPROOFING WALLS

Following the recomendations of LEED PILOT CREDIT 24: Acoustic, we need to bear in mind the following composite Sound Transmission Class (STCC) ratings:

 

A jacency Combinations

Residence or Hotel/Motel Room

Residence or Hotel/Motel Room

Residence or Hotel/Motel Room

Retail

Standard Office

Executive Office

Conference Room

Office/Conference Room

Mechanical Equipment Room

-

Residence or Hotel/Motel Room

Common Hallway/Stairway

Retail

Retail

Standard Office

Executive Office

Conference Room

Hallway/Stairway

Occupied Area

STC C

55

50

60

50

45

50

50

50

60

 

WOODEN SOUNDPROOF DOOR

Rw(C;Ctr) = 38(-1;-6)dB

Rw(C;Ctr) = 38(-1;-6)dB


METAL SOUNDPROOF DOOR

Rw(C;Ctr) = 54(-2;-8)dB - 38(-2;-3)dB