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3. Protecting against external noise
The best way to protect a building from external noise is to reinforce the acoustic insulation of the roof and facades, prescribe thermo-acoustic bay windows and doors, install acoustic air inlets... For acoustic insulation, the insulation material is chosen according to its sound reduction index. Insulation must be continuous to avoid sound bridges, the weak points through which noise arrives.
3.1 Roof soundproofing
In new-build homes, the roof is usually heavily insulated. Because warm air is lighter than cold air and rises naturally, heat loss can account for 25% to 30% of that of an uninsulated house. The thickness of thermal insulation is therefore important: between 20 and 50 cm to obtain a thermal resistance (R) of between 8 and 12 m ...
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Protecting against external noise
Protecting against interior noise
Bibliography
Also in our database
Regulations
Order of October 28, 1994 – New acoustic regulations (NRA) relating to sound insulation in residential buildings
Order of June 30, 1999 on acoustic characteristics of residential buildings
Decree of April 25, 2003 on noise abatement in educational, health and hotel establishments
Decree no. 2006-1099 of August 31, 2006 on the fight against neighborhood...
Organizations
Center for Information and Documentation on Noise (CIDB) http://www.bruit.fr
Groupement de l'ingénierie acoustique (GIAc) – Member of the CINOV federation http://www.cinov.fr/syndicats/giac
French Environment and Energy Management...
Standards and norms
- Vérification de la qualité acoustique des façades - NF S 31 057 - 10-82
- Acoustics – Assessment of sound insulation of buildings and building components - NF EN ISO 717 (indice de classement S 31-032) -
- Systèmes électroacoustiques pour services de secours - NF EN 60849 - 08-98
Documents
A new version of the document "Examples of acoustic solutions – Acoustic Regulations 2000" was published in February 2014 by the French Ministry of Land and Housing. New solutions have been added: lightweight timber structures (strip houses and interior staircases) and façade and roofing solutions in particular, downloadable at http://www.developpement-durable.gouv.fr
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