International
Spain
Sweden
Aim
To reduce sound reverberation and maintain comfortable sound levels though absorptive ceiling and wall surfaces.
Detailed requirement
Part 1: Ceilings
The following spaces, if present, have ceilings that meet the specifications described:
- Open workspaces: minimum NRC of 0.9 for the entire surface area of the ceiling (excluding lights, skylights, diffusers and grilles).
- Conference and teleconference rooms: minimum NRC of 0.8 on at least 50% of the surface area of the ceiling (excluding lights, skylights, diffusers and grilles).
Part 2: Walls
The following spaces, if present, have walls that meet the NRC specifications described:
- Enclosed offices, conference and teleconference rooms: minimum NRC of 0.8 on at least 25% of the surface area of interior surrounding walls.
- Open workspaces: minimum NRC of 0.8 on at least 25% of the surface area of the surrounding walls.
Partitioned office spaces: partitions reach at least 1.2 m [48 inches] and have a minimum NRC of 0.8.
Part 3: School Ceilings
The following spaces have ceilings that meet the specifications described:
- Spaces less than 6,000 m³ [20,000 ft³]: NRC of at least 0.7 for the entire surface area of the ceiling (excluding lights, skylights, diffusers and grilles).
See detailed requirement for Sound reducing surfaces
Our contribution
In the context of green architecture, products from the Acoustiver sub-range (Novelio® Renovation) are designed to improve thermal and acoustic comfort while helping in heavy renovation jobs.
More specifically, this range helps to reduce echo phenomena and absorbs up to 40% of noise pollution according to the ISO 11654 norm.
Based on the ISO 354 norm, the acoustic absorption coefficient αw is 0.25.
