Development of a passive strategy for buildings’ sustainability using green roofs techniques in Taif City, Saudi Arabia

Abstract Buildings’ sustainability can strongly contribute towards meeting the Sustainable Development Goals which set forth a challenge for humanity in existing and modern Saudi societies. Recently, large numbers of initiatives and strategies have been recently developed and adopted with a focus on the green architecture which relates the real estate and clean energy industries in Saudi Arabia. This is considered as an important step to the diversity in the Saudi economy, which is not built on oil revenues and towards the achievement of Saudi Arabia’s vision 2030. Consequently, the application of different passive sustainability strategies in residential building projects, e.g., green roofs technology, can boost sustainable building ratings. In the present paper, the feasibility and probable health and environmental benefits associated with green roofs technology in Saudi residential buildings have been described. Moreover, different perspectives have been presented related to the green roofs industry, such as: types, recent technology, and the current challenges. In addition, the contributions of green roofs to the sustainable building’s certification via Saudi rating system, MOSTADAM, has been explored. The method adopted in the present research is based on relating the characteristics of the green roof technology and its environmental effects to the different categories of the “Mostadam” rating system. It is found that the green roofs technology can boost the sustainable building ratings through contribution to the major categories of MOSTADAM rating system a potential of 32% credits total. This encourages stakeholders to apply green roofs in Saudi residential buildings supporting the sustainable development goals of the Saudi government’s ongoing initiatives that advocates for more sustainable and resilient cities considering vision 2030. Moreover, the present study would assist the “Mostadam” responsible in evaluating the sustainable buildings projects and making the right decisions on such projects.