Abstract
Green buildings are becoming an essential part of sustainable development. There have been several research trends for green buildings since 1995. The present study presents a roadmap for green/sustainable research trends and proposes a new green building rating system for existing buildings. A questionnaire was established and answered by experts, where answers were analyzed using the decision-making tool Analytical Hierarchy Process. Analytical Hierarchy Process is responsible for weighing and ranking the weights of alternatives. A novel checklist for existing buildings was structured and consisted of seven main categories, each comprised of different subcategories with different weights according to their importance and priority. The newly proposed rating system and Leadership in Energy and Environmental Design (LEED) for maintenance and renovations were both used to evaluate a Nile University building in Egypt in order to identify how the environment affects the results of each rating system. The results showed that each rating system has its own criteria in evaluating the sustainability level of the building, which are each based on the country’s cultural and environmental conditions.
Highlights
Sustainability and green buildings have become vital to maintaining a certain life quality level for future generations
Green building in Egypt is a major problem facing the construction industry due to increasing concerns associated with climate change and sustainability worldwide
There is a deficiency of research in the green building field in Egypt and other developing countries, and the present study is lacking several topics that have not been tackled in recent studies, such as policies for green buildings and numerical methods for assessing green ratings
Summary
Sustainability and green buildings have become vital to maintaining a certain life quality level for future generations. The Organization of Economic Cooperation and Development defines sustainable buildings as those with the least negative impact on the environment, aiming for enhanced economic, social, and environmental quality [3,4]. Yudelson (2008) defined sustainable construction as “a high-performance property that considers and reduces its impact on the environment and human health” [5,6]. The above definitions show that green building and sustainable construction comprise the entire life of the building, taking into account different aspects (e.g., environmental and operating) and future economic value in order to minimize negative impacts and maximize the positive to achieve an environmental, economic, and social balance [2,7]
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