Sound transmission loss of extensive green roofs - Field test results
Keywords:Acoustic wave transmission, Architectural acoustics, Domes, Electric lines, Electromagnetic waves, Light weight structures, Thermoluminescence, Acoustical features, Aircraft flight paths, Damping effects, Empirical findings, Field tests, Frequency ranges, Green roofs, Mass loadings, Moisture contents, Potential contributions, Potential effects, Residential, Roof decks, Roof systems, Sound energies, Sound transmission losses, Sound transmissions, Transmission losses
AbstractA study was conducted to review the acoustical features and the potential contributions of green roofs to the acoustical environment, to investigate sound transmission theory, and to report on new empirical findings on the transmission loss of green roofs. The results of the study shows that existing sound transmission algorithms do not adequately predict TL of light-weight roof system or green roofs, nor describe the potential effect of moisture content of the substrate. The sound energy is dissipated in the substrate and provides a mass loading and damping effect on to the light-weight roof deck. The study also suggested that green roofs will provide a higher TL than the additional ceiling element and improve TL throughout the full architectural frequency range, specifically desirable in residential and institutional occupancies that are developed below aircraft flight paths.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.