Green Roof Advantages And Disadvantages

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A few studies by the United Nations have indicated that more and more people are going to inhabit the urban areas than the rural ones (UN, 2010). By the year 2050, the world population are expected to rise up to 9 billion (Population References Bureau, United Nations), where the level of world urbanization will increase from 50% in 2009 to 69% in 2050. By 2050, urban dwellers will account for 86% of the population in the more developed regions and for 66% of that in the less developed regions. Many cities in the world are fast becoming highly urbanized with the construction of buildings and structures in close proximity to each other. Thus, this creates significant pressure to maintaining the ecological equilibrium and harmonising the relationship…show more content…
According to Wong (2005) as cited in Getter and Rowe, 2006, roofs normally represent 21%-26% of urban areas and this can provide a unique opportunity to improve the environment if green roofs are used. In urban areas such as Kuala Lumpur, George Town and Johor Baharu, there are a lot of opportunities to incorporate green roofs in the development because of rapid expansion in these areas. By having a green roof, the areas taken from nature are made to come alive again in our immediate…show more content…
Green roofs in Singapore, the country that has a similar climate with Malaysia, have grown remarkably compared to us. The impetus for green roof development in Singapore is due to limitation of space and it cannot be denied that Malaysia may face the same problem as Singapore in future. Compared to Singapore, we are far behind in terms of policies, research done, technology and practice in this area. Basically, the research works that have been carried out in the green roof field can be divided into nine groups covering; i) management of storm water, ii) materials, iii) barriers and opportunities or incentives, iv) plants v) atmosphere or environment, vi) energy and building, vii) insights and views, viii) guidelines and ix)

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