11.2.6 Acoustic performance
Closed panel system walls and floors shall have adequate resistance to the passage of sound.
Separating walls and floors should be in accordance with Building Regulations. In England, Wales, and Northern Ireland, separating walls and floors may be built in accordance with Robust Details ‘Resistance to the passage of sound’ as an alternative to pre-completion sound testing.
Separating walls and floors should be in accordance with the design. Care should be taken to avoid gaps:
- between mineral wool quilt or batts
- between internal lining board layers
- between cavity barriers
- around openings for services.
Internal walls should be in accordance with Clause 6.3.7.
Proprietary partitions
Closed panel systems when used as proprietary partitions should be independently assessed or tested for ‘sound transmission’ performance in compliance with Technical Requirement R3.
Last updated: 2nd January 2025