Where to begin a process of struggle against noise

It is appropriate to begin a process of struggle against noise by taking the advice of professionals of soundproofing, such as Isolation Technologie Services, able to accompany a Client throughout his process of sound nuisance reduction by providing to him the expertise (of its human resource) of 20 years in the field of acoustics in all sectors of activity: industry, environment, energy, testing rooms, building.

What is soundproofing ?

Soundproofing involves the implementation of means of protection of workers against noise, and/or of environmental protection against noise, and/or of means for compliance with regulatory in terms of acoustics of buildings (industrial, tertiary, residential ...) Soundproofing can involve technologies related on the one hand to acoustic insulation and on the other hand to reverberation control as well as techniques related to the implementation of silencers and of noise barriers.

What is the difference between sound insulation and reverberation control?

The sound insulation is the set of processes implemented for getting a determined noise reduction, i.e. limiting the transmission of sound from one space where noise is generated toward another that one wishes to protect. The reverberation control consists in the implemention of absorbing materials in a premise in order to limit its reverberation time (the persistance of sound after a noise source has been shut off), and/or to increase its spatial sound decay, i.e. to improve the inner acoustics inside a premise by limiting the amplification of sound levels due to the phenomenon of reverberation.

Which means for reducing noise at source?

Noise reduction at source consists in reducing the sound power of a noisy hardware or equipment, by means such as an enclosure (acoustic hood) for a machine, a soundprrofing partition for a noisy area in a workshop for example, a silencer for a ventilation opening (or a suction / extraction linked to an industrial process).

Which means for limiting the spread of noise?

In a local limitation of noise propagation can namely be performed by the implementation of noise barriers (sound barriers) that oppose the propagation of noise in a given direction and also by the implementation of absorbent materials (according to the possibilities: in the form of a wall covering, and / or in the form of a suspended ceiling or suspended baffles and / or in the form of a floor covering) that allow to increase the spatial noise decay whereas limiting the amplification of noise levels due to the effects of reverberation. In some workplaces, cabins are constructions specifically designed to protect people (e.g. machine operators) of ambient noise, consisting of a fully enveloping structure.

Outside, the limitation of noise propagation can namely be performed by the implementation of noise barriers (sound barriers) that oppose the propagation of noise in a given direction.

In buildings, the performance of the envelope of a construction (housing, tertiary premise) in terms of airborne noise insulation limit noise propagation from noisy spaces toward spaces to be protected (interior or exterior). Booths for musician are constructions specially designed to enable them to practice music without disturbing the neighbors, consisting of a fully enveloping structure. Audiometric booths are constructions specially designed to allow examinations and tests related to the hearing, consisting of a fully enveloping structure.

Which protection of workers against noise in France and in the European Union?

In France, the decree of August 1990 the 30th is adopted in application of Article R. 235-11 of the Labour Code and is related to the reverberation control of working premises: this text is applicable in France in relation to the acoustic characteristics of working premises and in particular with respect to the noise level decay per doubling the distance to a noise source
In France, the Decree No. 88-405 of april the 21st amends the Labor Code and is on the protection of workers against noise. Note: all or part of this document has been modified by more recent texts
In France, the Decree No. 2006-892 of July 2006 the 19th is related to the safety and health regulations applicable for exposure of workers to risks arising from noise. This decree transposes Directive 2003/10/EC of 6 February 2003 concerning the minimum safety and health requirements regarding the exposure of workers to risks arising from noise.

In France, the Decree No. 2006-1044 of 23 August 2006 is related to the safety and health regulations applicable for exposure to risks from noise of staff employed on board ships
In the European Union, Directive No. 86/188/EEC of 12/05/86 is on the protection of workers against noise Note: all or part of this document has been modified by more recent texts
In the European Union, Directive 2003/10/EC of 6 February 2003 is concerning the minimum safety and health requirements regarding the exposure of workers to risks arising from physical agents (noise): applicable in French law since 2006 and involving in particular a decrease of 5 dB of limits previously in force

Which environmental protection against noise in France and in the European union?

In France: the Decree of August 20, 85 is on airborne noise emitted into the environment by classified installations for environmental protection with the exclusion of facilities subject to the provisions of the Decree of January 23, 1997 Rating: all or part of this document has been modified by more recent texts
In France, the Order of 10 May 1995 is on procedures for measuring noise from neighbors
In France, the Decree of January 23, 1997 relates to the limitation of noise emitted into the environment by installations classified for environmental protection
In France: the Order of 15 November 1999 amends Decree of 23 January 1997 on the limitation of noise emitted into the environment by installations classified for environmental protection and the Order of 14 May 1993 is on the glass industry
In France, the Decree of April 4, 2006 is relevant to the preparation of noise maps and of plans for prevention of environmental noise
In France, the Order of 5 December 2006 is on procedures for measurement of noise from neighbors
In France, the Decree of November 27, 2008 changes the order of 5 December 2006 concerning the measurement of neighborhood noise
In France, Decree No. 95-408 of 18 April 1995 is on the fight against neighborhood noise and amends the Code of Public Health
In France, Decree No. 2006-361 of 24 March 2006 is relevant to the preparation of noise maps and plans for prevention of environmental noise and modifies the code of Town Planning
In France, Decree No. 2006-1099 of 31 August 2006 is on the fight against neighborhood noise and amends the Code of Public Health
In the European Union, Directive 2002/49/EC of 25 June 2002 is on the assessment and management of environmental noise

Which noise regulation for residential buildings ?

In France, the Decree of 30 June 1999 relates to the acoustic characteristics of residential buildings: it is referred to as the "new acoustic regulation".

Which noise limitation in school ?

In France, the Decree of 25 April 2003 relates to the noise limitation in school.

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