scholarly journals A Comparative Analysis of Gold Leadership in Energy and Environmental Design for New Construction 2009 Certified Projects in Finland, Sweden, Turkey, and Spain

2018 ◽  
Vol 8 (9) ◽  
pp. 1496 ◽  
Author(s):  
Svetlana Pushkar
Keyword(s):  
Comparative Analysis ◽  
Environmental Quality ◽  
Environmental Design ◽  
Northern Europe ◽  
Indoor Environmental Quality ◽  
Southern Europe ◽  
Water Efficiency ◽  
European Regions ◽  
New Construction ◽  
The Difference

The Leadership in Energy and Environmental Design (LEED) is currently intensively applied in several European countries. The aims of the present study were to compare the difference between (i) two countries from the same region (i.e., Finland vs. Sweden or Turkey vs. Spain) and (ii) two European regions (northern Europe [Finland and Sweden] vs. [Turkey and Spain]) when the LEED- New Construction (NC) 2009 Certified rating level certified projects were analyzed. We found that, in the northern and southern parts of Europe, LEED- NC 2009 credit achievements in terms of Sustainable Sites (SS), Water Efficiency (WE), Materials and Resources (MR), and Indoor Environmental Quality (EQ) were similar, whereas credit achievements in Energy and Atmosphere (EA) were different. High achievements were revealed in WE and SS, with values of 80–100% and 70–75%, respectively; intermediate achievements were revealed in EQ, with values of 40–60%; and low achievements were revealed in MR (20–40%). EA achievements were intermediate (60–65%) in northern Europe, while they were low in southern Europe (40%). This evidence can help recognize the categories that are performed with a high number of points and those that are performed with a low number of points.

scholarly journals Evaluating State-of-the-Art LEED-NCv4 in the U.S.

2020 ◽  
Vol 10 (3) ◽  
pp. 775
Author(s):  
Pushkar
Keyword(s):  
Environmental Quality ◽  
State Of The Art ◽  
Environmental Design ◽  
The Other ◽  
Indoor Environmental Quality ◽  
Water Efficiency ◽  
New Construction ◽  
Almost All ◽  
Very High ◽  
The U.S

To date, no empirical evidence has been published on the certification achievements of Leadership in Energy and Environmental Design for New Construction (LEED-NCv4) projects. Therefore, the aim of this study was to determine the trends in LEED-NCv4 Certified, Silver, Gold, and Platinum projects in the U.S. Boxplots were used to measure the consistency of achievement points in categories; Cliff’s δ was used to measure the effect size between possible points and achieved points in categories and credits. The findings show that (1) the categories Sustainable Sites and Energy and Atmosphere were well designed, with consistency increasing from level to level and almost all their credits achieving low–very high points; (2) the categories Water Efficiency and Indoor Environmental Quality showed an average design, and certification levels were found to be inconsistent across the projects and only approximately half of the credits achieved medium or high points, whereas the other half achieved low points; and (3) the categories Location and Transportation and Materials and Resources were the worst designed, with four certification levels found to be inconsistent across the projects and most of the credits achieved low points.

SILVER AND GOLD LEED COMMERCIAL INTERIORS: CERTIFIED PROJECTS

2019 ◽  
Vol 14 (3) ◽  
pp. 95-113 ◽  
Author(s):  
Svetlana Pushkar ◽  
Oleg Verbitsky
Keyword(s):  
Interior Design ◽  
Environmental Design ◽  
Project Performance ◽  
Indoor Environmental Quality ◽  
Water Efficiency ◽  
Us States ◽  
The Us ◽  
New Construction ◽  
Exterior Design ◽  
Layer Concept

Leadership in Energy and Environmental Design Commercial Interiors (LEED-CI) is more relevant to interior design, which, according to the sharing layer concept, differs from exterior design (which is usually evaluated with the LEED New Construction sub-scheme). LEED-CI requires separate empirical analyses of LEED-CI certified buildings to further improve this sub-scheme. Therefore, in this study, Silver and Gold projects certified under LEED-CI-2009 in 14 US states were considered. Three project performance analyses, (i) certification, (ii) category, and (iii) cross-certification, were studied. The following results were revealed: (i) the range of the medians for Silver- and Gold-certified projects were 51–57 pts and 62–71 pts, respectively; (ii) in both Silver- and Gold-certified projects, Sustainable Sites (SS), Water Efficiency (WE), and Innovation in Design (ID) were the best-performing; Energy and Atmosphere (EA) and Indoor Environmental Quality (EQ) were intermediate-performing; and Material and Resources (MR) was the worst-performing categories; and (iii) in Silver-Gold cross-certification, category-focused (in 10 of 14 states) and category-unfocused (in four of 14 states) strategies were determined; in the category-focused strategy, the highest popular category was EA; the intermediate popular categories were WE, MR, and ID; and the lowest popular category was SS. Pooling all projects and all states into one frame can lead to the obscurement of the actual LEED-CI-2009 strategy(ies) in the transition from Silver to Gold certification in the US.

scholarly journals LEED-CIv4 Commercial Interiors: United States (2014–2019)

2019 ◽  
Vol 12 (1) ◽  
pp. 69 ◽  
Author(s):  
Svetlana Pushkar
Keyword(s):  
United States ◽  
Interior Design ◽  
Environmental Quality ◽  
Effect Size ◽  
Environmental Design ◽  
Indoor Environmental Quality ◽  
Water Efficiency ◽  
Integrative Process ◽  
Quality Categories ◽  
Very High

This paper analyzes Leadership in Energy and Environmental Design for Interior Design and Construction: Commercial Interior (LEED-CIv4) projects, thereby presenting the first empirical evidence of these projects. The aim of the study was to reveal trends in Certified, Silver, Gold, and Platinum LEED-CIv4 US projects, certified in 2014–2019. The effect size between possible and achieved points in categories and credits was measured using Cliff’s δ. The following conclusions were drawn: (i) the Integrative Process, Innovation, and Regional Priority categories showed high achievements only in Platinum projects, so it is necessary to reconsider these categories toward increasing their acceptance at all certification levels; (ii) the Location and Transportation and Indoor Environmental Quality categories were quite well-designed because most credits in these categories showed varying levels of achievement (low/medium/high/very high) at all four certification levels; and (iii) the Water Efficiency, Energy and Atmosphere, and Material and Resources categories were badly designed because most credits there similarly showed low achievements at all four certification levels, thus needing more attention toward their improvement in the next LEED-CI version.

scholarly journals The Effect of Regional Priority Points on the Performance of LEED 2009 Certified Buildings in Turkey, Spain, and Italy

2018 ◽  
Vol 10 (10) ◽  
pp. 3364 ◽  
Author(s):  
Svetlana Pushkar
Keyword(s):  
Mediterranean Basin ◽  
Construction Material ◽  
Environmental Design ◽  
Green Building ◽  
Indoor Environmental Quality ◽  
Water Efficiency ◽  
Local Conditions ◽  
Foreign Countries ◽  
The Mediterranean ◽  
The Mediterranean Basin

Leadership in Energy and Environmental Design (LEED) has five basic categories: Sustainable sites (SS), Water Efficiency (WE), Energy and Atmosphere (EA), Materials and Resources (MR), and Indoor Environmental Quality (EQ). Additionally, in LEED 2009, the U.S. Green Building Council (USGBC) introduced regional priority (RP) points to adapt LEED to the local conditions of foreign countries. However, the appropriateness of the RP points stated for the Mediterranean basin has not yet been evaluated. Thus, we studied the similarities and differences in performances of LEED 2009 Commercial Interiors (CI) and LEED 2009 Core and Shell Development (C&S) Gold certified projects in Turkey, Spain, and Italy. We revealed that the categories without RP points, SS, MR, and EQ, performed similarly in all three countries, thereby signaling the correctness of CI and C&S applications in the Mediterranean basin. However, the categories with RP points, WE and EA, performed differently. It can be suggested that the following RP points would be beneficial for all three countries: (i) in the MR category, RP points that initiate decreases in virgin construction material; (ii) in the WE category, RP points that encourage water saving; and (iii) in the EA category, RP points that encourage using renewable energies.

ASSESSMENT OF INDOOR ENVIRONMENTAL QUALITY AND OCCURRENCE OF SICK BUILDING SYNDROME IN SMALL OFFICES IN PENANG, MALAYSIA

2015 ◽  
Vol 75 (5) ◽  
Author(s):  
Ang Qiu Mei ◽  
Md Azree Othuman Mydin
Keyword(s):  
Environmental Quality ◽  
Sick Building Syndrome ◽  
Quality Measurement ◽  
Comfort Level ◽  
Working Environment ◽  
Indoor Environmental Quality ◽  
Sick Building ◽  
The Difference

This study was done to investigate the relationship between indoor environmental quality and prevalence of Sick Building Syndrome in six small offices inPenangIsland. Indoor environmental quality measurement was conducted according to relevant standards. There are totally Sixty workers were selected to participate in an electronic questionnaire survey. Questionnaire was used to record the comfort level of respondents in the case studies and level of sick building syndrome faced by respondents. Through indoor environmental quality measurement, it is found that most of the offices facing the lighting and noise problem. The result from the questionnaire shows that in overall, the occupants satisfy with their working environment in term of indoor environmental quality although the result also shows the opinions of occupants on dissatisfaction on certain indoor environmental parameter according to case study. The study also found that most of the occupants feel drowsy and fatigue when they work within the offices. Besides, due to the difference of the indoor environmental quality of the buildings, the occupants are suffered from different symptoms of the sick building syndrome.

LEED-NC 2009 SILVER TO GOLD CERTIFIED PROJECTS IN THE US IN 2012–2017: AN APPROPRIATE STATISTICAL ANALYSIS

2019 ◽  
Vol 14 (2) ◽  
pp. 83-107 ◽  
Author(s):  
Svetlana Pushkar ◽  
Oleg Verbitsky
Keyword(s):  
Statistical Analysis ◽  
Group Analysis ◽  
Environmental Design ◽  
Water Efficiency ◽  
Us States ◽  
Replication Method ◽  
The Us ◽  
New Construction ◽  
Total State ◽  
Single State

This study aims to evaluate the Silver-to-Gold LEED-NC 2009 (Leadership in Energy and Environmental Design for New Construction and Major Renovations) cross-certification performance and categorize the cross-certification performance in eight US states in 2012–2017. The following three statistical analyses were used: (a) pooling LEED projects within a single state and single year in a single-state-year group with the subsequent use of a replication method, (b) pooling the medians of the LEED projects in each state from all years in a state-and-total-years group, and (c) pooling the LEED projects from all states and years in a total states-and-years group. The Silver-to-Gold cross-certification performance has a low propelling effect. Considering the Silver-to-Gold category cross-certification performances, the Energy and Atmosphere (EA) category has a high propelling effect, the Sustainable Sites (SS) and Environmental Quality (EQ) categories have moderate propelling effects, the Water Efficiency (WE), Materials and Resources (MR), and Innovation in Design (ID) categories have low propelling effects. Six of the eight states used an EA-high emphasized strategy, and two of the eight states used a SS/EA/WE/EQ/ID-moderate emphasized strategy. The single-state-year group and state-and-total-years group analyses are more robust than the pooling LEED projects using the total state-and-year group analysis.

INDOOR ENVIRONMENTAL QUALITY IN THE JORDANIAN CONTEXT: INFLUENCE ON OCCUPANTS’ SATISFACTION

2021 ◽  
Vol 16 (3) ◽  
pp. 195-215
Author(s):  
Hikmat H. Ali ◽  
Sally A. Alazzeh ◽  
Ahlam A. Sharif
Keyword(s):  
Environmental Quality ◽  
Environmental Design ◽  
Local Context ◽  
Subjective Perception ◽  
Paired Comparisons ◽  
Indoor Environmental Quality ◽  
Rating Systems ◽  
Level Of Satisfaction ◽  
Mixed Approach

ABSTRACT The applicability of building rating systems has gained attention for achieving indoor environmental quality. Considering the wider internationalized recognition of LEED (Leadership in Energy and Environmental Design) and other rating systems, the case of Jordan provides a sense of particularity in consideration to its rather recent history in acknowledging these progressive standards. Utilizing a mixed approach based on paired comparisons between local LEED and non-LEED certified buildings, this research paper explores the level of satisfaction pertaining to Indoor Environmental Quality of building occupants. While it touches on the generality of such satisfaction, it proceeds to unpack and investigate how it resonates with the sustainability of the building measured through various means. The research outcomes reflected an overall appeal of LEED certified buildings and a decent level of comfort of their dwellers. Yet, it conveyed a vague, rather sporadic relation when comparing the subjective perception to the objective measures due to multiple potential reasons. The paper concludes by stressing the need for further appropriation of international environmental codes to better suit the local context. It lays a reliable foundation for further research, utilizing more case studies and exploring the applicability of rating systems in Jordan.

EVALUATION OF CREDIT ACHIEVEMENTS OF LEED-CERTIFIED BUILDINGS

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Gul Polat ◽  
Harun Turkoglu ◽  
Asli Pelin Gurgun ◽  
Naz Yikilmaz
Keyword(s):  
Environmental Quality ◽  
Green Building ◽  
Green Buildings ◽  
Indoor Environmental Quality ◽  
Water Efficiency ◽  
Renewable Materials ◽  
Investment Cost ◽  
High Investment ◽  
Low Levels ◽  
Different Levels

Nowadays, the concept of green building is no longer an alternative but a necessity. The acceptance of a building as “green” depends on having a certificate. LEED is one of the widely used green building certification systems in Turkey. The main objective of this study is to find out whether there were statistically significant differences between the credit achievements of 105 newly constructed and certified buildings in Turkey, which were certified according to four different levels, and to determine which of these credit achievements are weak. For this purpose, Kruskal-Wallis and Mann-Whitney U tests were performed and the findings were interpreted. Findings revealed that the highest level of achievement of these buildings was in sustainable sites, water efficiency, innovation in design, and regional priority credits, while the lowest level of achievement was in energy and atmosphere, materials and resources, and indoor environmental quality credits. Analyses revealed that the achievements in the energy and atmosphere, materials and resources, and indoor environmental quality credits of green buildings are relatively low when compared to the ones in other credits. There may be several reasons behind these low levels of achievement such as poor green culture, high investment cost of necessary systems, absence of reusable, recycled, and renewable materials. If these problems, most of which are peculiar to developing countries, can be overcome, higher certification levels can be achieved.

scholarly journals Empirical investigation of indoor environmental quality (IEQ) in a hospital building in Merida Yucatan, Mexico

2018 ◽  
Vol 7 (3.11) ◽  
pp. 245
Author(s):  
Fanny C. Cocom Martínez ◽  
. .
Keyword(s):  
Environmental Quality ◽  
Air Conditioning ◽  
Well Being ◽  
Indoor Environmental Quality ◽  
Indoor Environments ◽  
Small Hospital ◽  
Air Conditioning System ◽  
Hospital Building ◽  
The Difference ◽  
Temperature Levels

This research summarizes the result of physical measurement of the indoor environmental quality (IEQ) in two different hospital rooms, from a small hospital in Merida Yucatan, Mexico. The results show wide differences in the established parameters for this evaluation and the measures obtained. The temperature levels exceed the range of 20-26ºC in both rooms, considering that bothrooms have air conditioning system (ISO 7730, 2005). The levels of Relative Humidity also exceed in more than 20% of the permitted range. The amount of CO2 is registered in higher levels when the air conditioning system is on, this is due to the lack of circulation and proper ventilation (ASHRAE 62.1, 2016). About Light Intensity showing the difference between rooms, is represented in the obtained results in the established parameters and their physical characteristics (NOM-025-STPS, 2008). Optimum conditions in indoor environments should result in health, well-being and comfort, both in terms of working life and in the areas where healthcare is concerned. The current society demands safe, clean and well-conditioned places, for which it is necessary to integrate perceptions and demands of the users to reach an optimal balance between social and legislative standards.  

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