Sound absorption coefficient
Approved document E: Resistance to the passage of sound, defines the ‘absorption coefficient’ as:
A quantity characterising the effectiveness of a sound absorbing surface. The proportion of sound energy absorbed is given as a number between zero (for a fully reflective surface) and one (for a fully absorptive surface). Note that sound absorption coefficients determined from laboratory measurements may have values slightly larger than one.
See BS EN 20354:1993 (Acoustics. Measurement of sound absorption in a reverberation room).
[edit] Related articles on Designing Buildings Wiki
- Airborne sound.
- Approved Document E.
- Building acoustics.
- Building Bulletin 93: acoustic design of schools.
- Flanking sound.
- Impact sound.
- Noise nuisance.
- Reverberation.
- Robust details certification scheme.
- Sound absorption.
- Sound insulation in buildings.
- Sound reduction index (SRI).
- Sound v noise.
- Structure-borne sound.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Construction Management, 8 July
NEETs crisis drives interest in trades, but apprenticeships barriers remain.
Passive fire protection webinar
MEP services penetration seals.
Where its at podcast (and video) - The role of the Architectural Technologist as an Expert Witness.
More than 200 remarkable buildings added to SAVE’s Buildings at Risk register.
Government scraps pre-application consultation for Nationally Significant Infrastructure Projects.
Historic England and infrastructure
New projects offer opportunities for the historic environment and local communities.
Construction Management, 2 July
Construction deaths halve in two years.
Green Book changes to drive investment in all parts of UK.
Minimum energy efficiency standards (MEES)
CIAT briefing on response to consultations for privately rented non-domestic properties.
Connect, collaborate, shape the future
Registration now live for UK Construction Week Birmingham.
CIOB announces Saul Humphrey FCIOB as new President for 26/27 term.
A quick, simple, and zero-bills solution to prevent overheating.