Building Acoustics
Saint-Denis, Île-de-France

In Saint-Denis, the territory is crossed by an exceptionally dense bundle of infrastructure, the A1 and A86 motorways, railways and Grand Paris Express lines, which places almost all projects in a situation of high exposure and makes façade sound insulation non-negotiable. The redevelopment of the districts arising from the major sporting facilities and their legacy also produces housing programmes delivered on highly constrained sites. The existing social housing stock, whose refurbishment is under way on a large scale, finally presents original acoustic performance that must be surveyed before works begin.

In Saint-Denis, 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.