Energy and water consumption during the post-occupancy phase and the users' perception of a commercial building certified by Leadership in Energy and Environmental Design (LEED)

Kern, Andréa Parisi; Antoniolli, Cibele Bossa; Wander, Paulo Roberto; Mancio, Maurício; González, Marco Aurélio Stumpf

doi:10.1016/j.jclepro.2016.05.081

Cited by 20 publications

(14 citation statements)

References 14 publications

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“…The analysis shows a better behavior of the certified building in terms of both energy consumption and users' satisfaction. Similar results are obtained by References [25] and [26] on a residential hall and a commercial buildings certified LEED Platinum and Gold, respectively. Baird and Field [27] analyse the IEQ of many buildings worldwide, characterized by low energy design or rated as highly sustainable, highlighting that the IEQ is an important component of the operational phase of a building affecting the health, productivity and well-being of occupants, as well as lifecycle costs and energy consumption [28].…”

Section: Introductionsupporting

confidence: 86%

Development of an Indoor Environmental Quality Assessment Tool for the Rating of Offices in Real Working Conditions

et al. 2019

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The Indoor Environmental Quality (IEQ) refers to the quality of indoor spaces in relation to the health and well-being of users. IEQ is a holistic concept considering various components of the overall indoor comfort: thermo-hygrometric, lighting, air quality and acoustics. Each component is described through specific performance indicators and benchmarks. The quality of the built environment is assessed at different stages from design to operational phase. The scientific literature reports several case studies related to the assessment of the individual components of the IEQ Tools aimed at the evaluation of the overall IEQ. The paper proposes an assessment tool based on the SB Method (Sustainable Building Method) and the Multi Criteria Analysis for the evaluation of IEQ during the operational phase of a building. Each component of IEQ is analysed through objective indicators and calculation methods. The tool provides two main outcomes: a global score expressing the overall performance of the building from the IEQ perspective; quantitative evaluations of all indoor comfort components through monitoring and measurement of the environmental variables. The above contributes to select intervention areas to optimize indoor design and to identify technologies aimed at ensuring the best IEQ levels for users at the operational stage. The system was applied to an open-plan working space of an office building. Monitoring activities and measurements are carried out to detect the indoor and outdoor variables affecting the IEQ. All aspects of IEQ were analysed and quantified so to evaluate the overall performance of the building and provide data to improve the working conditions.

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Section: Introductionsupporting

confidence: 86%

Development of an Indoor Environmental Quality Assessment Tool for the Rating of Offices in Real Working Conditions

et al. 2019

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“…Finally, the correlations between sustainability and quality were assessed as a part of the forth objective by determining the current sustainability traits embedded in the quality key performance indicators (KPIs), the consequence of non-compliance of sustainability traits in the rework type, and the degree of integration among teams for formulating the commissioning scope. The questions formulated for each of the managerial types are based on their roles and responsibilities, and the KPIs reflect the green-building projects' quality and sustainability plans and PAF quality activities deduced from literature [5,7,10,17,23]. Table 2 lists the sources of the different quality failure consequence types.…”

Section: Questionnaire Designmentioning

confidence: 99%

“…The expectations in a green building are more elevated as there are energy and water saving requirements, improved indoor environmental quality and compliance for environmentally conscious material selection and waste reduction. However, several authors pointed out green buildings did not meet the energy and water savings performances in the operational phases [5][6][7][8], nor on indoor environmental quality in actually promoting the building end-users' well-being [9,10]. Furthermore, the green building rating systems had a slight impact on tackling construction waste management as a result of weak appraisal measures [11].…”

Section: Introductionmentioning

confidence: 99%

Managerial Practitioners’ Perspectives on Quality Performance of Green-Building Projects

Raouf

Al-Ghamdi

2020

Buildings

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The quality performance of a green building will have an overarching effect on its objectives because of the high compliance needed to achieve superior performance expectations. Achieving sustainability objectives is challenging and requires the collaboration of diverse professionals that resume unique responsibilities. In this study, the different managerial practitioners involved in green-building projects were investigated in terms of their awareness levels regarding the quality performance measures, their perceived abilities to influence quality failure consequences, the degree to which the cost-of-quality (CoQ) of components can be evaluated, and the effect the sustainability traits have on the quality performance. Accordingly, a survey approach was adopted, and the results were analyzed using Pearson’s chi-squared (χ2) test, the relative importance index (RII), Mann–Whitney U-Test, and Student’s T-test. According to the results, the priorities of the different managerial types and their overall impressions of cost computability were different, which needs to be considered when CoQ evaluations are done based on practitioners’ views. In addition, the sustainability traits of green buildings impact achieving quality metrics with the consequences of design rework occurring in the construction stage may lead to denouncing sustainability traits. The results of this research study reveal the need to consider the differences between managerial types when evaluating CoQ for projects and the increased sensitivity for such evaluation in a green building context. The paper contributes to underscoring the important connection between quality performance and sustainability traits of a green building project and calls for researchers to formulate methods with more rigor to reach a set structure for quality cost accounting as an industry standard. Intricate evaluation methods will enable strategic decision making on quality performance budgets to be more substantiated.

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“…One of the main challenges concerning the energy-efficiency of LEED-certified buildings is their actual performance. A building might be energy-efficient in its design phase but not in the operation phase [39]. Stoppel and Leite [43] studied two buildings and found that the designed building over-predicted the use of energy by 14% and 25% in theory.…”

Section: The Issue Of Factual Energy-efficiencymentioning

confidence: 99%

“…It tries to decrease negative impacts on the environment and maximize energy efficiency [31,34,35]. In addition to many studies that show the benefits of LEED, some researchers criticize it by highlighting that it has not significantly reduced the energy use in buildings and it will not reach the energy-efficiency goals set for the future [26,[36][37][38][39][40][41][42][43]. Therefore, the aim of this study is to critically analyze the scientific literature dealing with LEED system in order to conclude whether LEED certificates (1) really imply energy efficiency, (2) enhance the reduction of greenhouse gas (GHG) emissions and (3) are beneficial from the viewpoint of overall environmental impact of buildings.…”

Section: Introductionmentioning

confidence: 99%

Are LEED-Certified Buildings Energy-Efficient in Practice?

2019

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Depletion of natural resources and climate change are undoubtedly the biggest challenges that humankind faces today. Here, buildings have a crucial role since they consume the majority, i.e., 30% to 40% of the total energy resources. Green building certification is one of the solutions to limit the energy use in buildings. In addition, it is seen to indicate a consideration for sustainability aspects in construction. LEED is the most widely used certificate worldwide. However, recently some critics have raised doubts about LEED and whether it actually implies sustainability. Most of the criticism has been targeted to the energy aspects of LEED. Nevertheless, there is no consensus on the usefulness of LEED: is it really beneficial for the environment, and is it worth of the money and time invested on the certification process? In this study a critical analysis of the literature to find an answer to this question is presented. Altogether 44 peer reviewed articles dealing with the abovementioned issue were selected out of 164 search result. Based on the studied material, the different aspects of LEED from the viewpoint of energy-efficiency are discussed. From the 44 reviewed articles, ten articles state that LEED certificate indicates energy efficiency while eight papers end up with an opposite conclusion. The rest of the papers do not take any stand on this matter. The study showed that energy efficiency of LEED-certified buildings is questionable especially at lower levels, i.e., certified. Therefore, it is recommended to modify the Energy and Atmosphere category of LEED in order to improve the actual energy performance of buildings.

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Energy and water consumption during the post-occupancy phase and the users' perception of a commercial building certified by Leadership in Energy and Environmental Design (LEED)

Cited by 20 publications

References 14 publications

Development of an Indoor Environmental Quality Assessment Tool for the Rating of Offices in Real Working Conditions

Development of an Indoor Environmental Quality Assessment Tool for the Rating of Offices in Real Working Conditions

Managerial Practitioners’ Perspectives on Quality Performance of Green-Building Projects

Are LEED-Certified Buildings Energy-Efficient in Practice?

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