International Journal of Civil and Structural Engineering Research ISSN 2348-7607 (Online) Vol. 7, Issue 2, pp: (106-112), Month: October 2019 - March 2020, Available at: www.researchpublish.com
GREEN ROOF BENEFITS, OPPORTUNITIES AND CHALLENGES 1
ISAIAH DAUDA, 2HALIL ZAFER ALIBABA
EASTERN MEDITERRANEAN UNIVERSITY, DEPARTMENT OF ARCHITECTURE, FAMAGUSTA, NORTH CYPRUS, by Mersin 10 TURKEY
Abstract: Over the last two decades, major research have been made about green roofs, this article tries to raise more awareness on green roof components and its many benefits (environmental, social and economic) that are related with the green roof technology. This article also places emphasis on how green roofs works in different areas, their overall performance in reducing storm water and energy costs, and improving air and ecological performance. The benefits of green roof shows that it plays an important role in making cities more secure, sustainable and resilient to local climate change. However, huge construction costs, excessive renovation costs and roof leakages are the primary challenges associated with the application of green roofs. These challenges can be overcome with new cost effective green roof layout that can work successfully and efficiently in any area. Advanced amendments and traits of green roof application are also covered in this article. Keywords: Green roof, Components, Benefits, Promotional policies, Advanced modification.
1. INTRODUCTION Climate change and urbanization are matters of modern interest. Due to speedy financial growth, urbanization is growing in many countries which degrade the natural landscape as well as the close environment. These problems can be solved by making use of green infrastructure strategies. The introduction of new urban development techniques such as rain gardens, green roofs, and green partitions can help reduce the direct effects of urbanization and improve the environment of an area. Green roofs are basically roofs that are planted with a distinct form of vegetation/plants on the top of a growth medium (soil). The idea is to encourage the implementation of vegetation on the top of buildings to get multiple social, economic and environmental benefits. A green roof commonly consists of several components, including vegetation, substrate, filter layer, drainage material, insulation, root barrier and water proofing membranes. The placement of each component of the green roof is very essential in order to get the best outcomes from the green roofs. Each component is equally important and performs a very important role for the better overall performance of green roofs in an area. Due to multiple benefits, green roofs are being applied in many countries. Research on the green roofs indicates several social, environmental and economic benefits. Significant evidence indicates that green roofs can supply more than one benefits, such as storm water management, depletion of heat in urban context, increase in urban plant life, small increase in wildlife habitats, improvements with regards to the air and water quality and quality of life in an urban context, decreased energy consumptions costs of buildings, decreased noise pollution, encourages recreational activities and increase in aesthetic value in an urban environment. As a result of water quality enhancement, green roofs decrease the workload of the water cure amenities in an area. Due to the above advantages, many countries begun to design green roofs on their buildings. As the result of this more and more green roofs are established and designed day by day around the globe.
2. LITERATURE REVIEW Planted roofs can improve the thermal environment in cities with the aid of decreasing solar absorption, Daily thermal variation and annual thermal fluctuations. By providing large vegetated surfaces, they contribute to the improvement of
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