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      ACOUSTICAL EVALUATION OF SIX ‘GREEN’ OFFICE BUILDINGS

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          Abstract

          To explain the reactions of the building occupants to their acoustical environments, meetings with the designers, walk-through surveys, and detailed acoustical measurements were done. The objective was to determine how design decisions affect office acoustical environments, and how to improve the acoustical design of ‘green’ office buildings. Design-performance criteria were established. Measurements were made of noise level, reverberation time, speech-intelligibility index (SII), and noise isolation. Noise levels were atypically low in unoccupied buildings with no mechanical ventilation, but excessive in areas near external walls next to noisy external noise sources—especially with windows open for ventilation—and in occupied buildings. Reverberation times were excessive in areas with large volumes and insufficient sound absorption. Speech intelligibility was generally adequate, but speech privacy was inadequate in shared and open-office areas, and into private offices with the doors open for ventilation. Improvement of the acoustical design of ‘green’ buildings must include increasing the external-internal noise isolation and that between workplaces, and the use of adequate sound absorption to control reverberation and noise.

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          Most cited references 22

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          Occupant Satisfaction with Indoor Environmental Quality in Green Buildings

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            “Acoustical lessons from four green buildings”

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              “Acoustical Criteria for Communities and Buildings”

               L. Beranek,  I. Ver (2005)
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                Author and article information

                Journal
                jgrb
                College Publishing
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Fall 2008
                : 3
                : 4
                : 108-118
                Author notes

                1Professor, Acoustics & Noise Research Group, SOEH-MECH, University of British Columbia, 3rd Floor, 2206 East Mall, Vancouver, BC, Canada V6T 1Z3; murray.hodgson@ 123456ubc.ca .

                Article
                jgb.3.4.108
                10.3992/jgb.3.4.108
                ©2008 by College Publishing. All rights reserved.

                Volumes 1-7 of JOGB are open access and do not require permission for use, though proper citation should be given. To view the licenses, visit https://creativecommons.org/licenses/by-nc/4.0/

                Page count
                Pages: 11
                Product
                Categories
                RESEARCH ARTICLES

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