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      PERFORMANCE OF SUSTAINABLE BUILDINGS IN COLDER CLIMATES

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          Abstract

          Building performance evaluations (BPEs) were carried out for nine Canadian green buildings using a standardised assessment framework. The aim was to explore and measure the discrepancies between the operational performance of the buildings and their predicted performance, as well as to identify lessons for their owners, design teams and the construction industry. The objective of this paper is not to report individual buildings in detail (we refer the reader to the individual building reports) but to report on some general lessons that came from doing this study.

          Overall these buildings performed well compared to benchmarks. However, the findings suggest that occupancy is not well understood and often incorrectly predicted during design, and that this affects various aspects of performance, including energy and water use. Also energy and water use modelling is often undertaken principally for building code/green rating compliance purposes and does not necessarily represent an accurate prediction of likely operational use. Combined with variations in occupancy this can lead to considerable discrepancies in performance from the modelled values. This may be understood by experts but is often misleading to building owners and others. Water use is often not well predicted and also not carefully managed in buildings and there is a lack of understanding of what constitutes good water performance.

          Overall, it is important to recognise that each building has its own individual “story” that provides necessary context for effective management and improvement of the building during its ongoing life. It is proposed that a BPE process allows that context to be better understood, and enables more effective decision making about building management, improvements, occupant satisfaction, energy use, etc.

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          Most cited references 14

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          Do LEED-certified buildings save energy? Yes, but…

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            Do LEED-certified buildings save energy? Not really…

             John Scofield (2009)
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              Influence of factors unrelated to environmental quality on occupant satisfaction in LEED and non-LEED certified buildings

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Fall 2016
                : 11
                : 4
                : 131-162
                Author notes

                1. Ryerson University

                2. University of British Columbia

                3. University of Manitoba

                Article
                jgb.11.4.131
                10.3992/jgb.11.4.131.1
                ©2016 by College Publishing. All rights reserved.
                Page count
                Pages: 23
                Product
                Categories
                RESEARCH ARTICLES

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