Building Acoustics
Cergy, Île-de-France

In Cergy, a dominant share of the stock comes from the new town of the 1970s and 1980s, a period whose regulatory acoustic performance was markedly lower than current requirements. The heavy refurbishments undertaken on this stock therefore require a prior survey, since the original separating walls and floors are rarely compliant and the corrective solutions consume ceiling height. The university and the district's facilities add teaching rooms where intelligibility directly governs usability.

In Cergy, urban density, the widespread use of outdoor heat pumps and neighbourhood noise nuisance make the acoustic study decisive: from the design stage, to size the sound insulation and avoid disputes at handover, then at acceptance, to certify NRA compliance and regulatory noise emergence.