Journal
CANADIAN JOURNAL OF CIVIL ENGINEERING
Volume 45, Issue 12, Pages 1065-1072Publisher
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
DOI: 10.1139/cjce-2017-0497
Keywords
LEED-NCv3; LEED-EBv3; shearing layer concept; building layer; service layer
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The study aims to evaluate the correlation between building layer (BL) and service layer (SL) (i.e., shearing layer concept) in the (i) design of new buildings under the LEED-NCv3 rating scheme and (ii) renewal of existing buildings under the LEED-EBv3 rating scheme. To decrease the influence that green policy, which can change over several years, has on the Energy and Atmosphere category of LEED, LEED-certified projects were selected exclusively from the US over the course of a year. The total number of LEED certified projects analyzed was 594. These projects were nested into 32 groups (eight US states x two types of buildings x two LEED certification levels). In 19 of 32 groups, reciprocal negative correlations between BL and SL were observed. The following three design strategies, BL-emphasized, SL-emphasized, and random, were identified. It was concluded that LEED rating schemes should be enhanced by emphasizing long time expectancy BL design strategies.
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