269 publications from this institution
This paper presents a method that guides designers in obtaining the desired number of earned points in the “Optimize Energy Performance” credit of the “Energy and Atmosphere” category of LEED version 4 (v4) certification at minimum cost. The model creates different scenarios, identifies the LEED points and costs for each scenario. The energy analysis calculations are performed by Sefaira, the quantities of materials are received from Autodesk Revit, and the cost information comes from the RSMeans Database. A macro in Excel automates the process. An office building was used as a case study to illustrate the applicability of the proposed method. The minimum cost necessary to achieve any number of points in the “Optimize Energy Performance” credit were calculated, such as a minimum cost of $842,500 to obtain 16 points, and $476,684 for 5 points. The primary contributions of this research include (1) the development of a tool that allows designers to pick the most economical alternative for the desired points in the “Optimize Energy Performance” credit, and (2) the first time integrated use of an energy simulation software (Sefaira), a cost database (RSMeans), and a BIM software (Autodesk Revit)
Purpose The purpose of this paper is to investigate sustainability efforts in the managerial processes of design, consulting, construction, and facility management firms and to identify the differences between these parties. Design/methodology/approach A questionnaire survey was administered to design, consulting, construction, and facility management firms in the USA to seek information about the state of sustainability efforts in these firms relative to strategic planning, marketing, business management, financial management, organizational structure, and people management. χ 2 tests were performed on the data collected to determine if statistically significant differences exist between the project participants relative to sustainability efforts. Findings Sustainability efforts are related to a firm’s strategic positioning, reputation and experience, and hiring/employment policies, while profit margins are not higher in sustainable projects compared to traditional projects. Statistically significant differences were detected in three of the six items investigated, indicating conflicting interests among the parties. Research limitations/implications The study’s limitation is that it is limited to sustainability efforts in the USA. Practical implications It is concluded that sustainability demands have changed the nature of design, construction, and operation of buildings in ways that deserve special attention on the part of all parties involved. Originality/value The firms that participate in building construction projects need to adopt management practices that accommodate sustainable building design, construction, and operation in order to remain competitive in a market where demand for environmental sustainability has grown significantly in recent years.
