Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10954
Title: Barriers to implement extensive green roof systems : a Hong Kong study
Authors: Zhang, X
Shen, L
Tam, VWY
Lee, WWY
Keywords: Barriers
Extensive green roof
Hong Kong
Sustainable development
Issue Date: 2012
Publisher: Pergamon-Elsevier Science Ltd
Source: Renewable and sustainable energy reviews, 2012, v. 16, no. 1, p. 314-319 How to cite?
Journal: Renewable and Sustainable Energy Reviews 
Abstract: Air pollution problems caused from the development of infrastructures are getting serious, in which air flow is reduced and heat is trapped among high-rise buildings. In order to mitigate these problems, various methods have been developed in previous studies. Extensive green roof has been identified as one of the most important means to mitigate these problems and implement sustainable development principles in the building features. Governments world-wide have been introducing various policies and regulations for promoting extensive green roof particularly for building projects. However, the existing buildings in many large cities such as Hong Kong display few extensive green roof features. Hong Kong is one of the most densely populated cities with many high-rise buildings. This paper examines the major barriers encountered in promoting extensive green roof systems for the existing buildings in Hong Kong. Case study approach is adopted to investigate how and why the barriers can hinder the implementation of extensive green roof features. Research results show that lack of promotion and incentives from governments and the increase maintenance cost are identified as the top barriers to the implementation. The paper concludes by providing further suggestions and actions that can help mitigate these existing barriers.
URI: http://hdl.handle.net/10397/10954
DOI: 10.1016/j.rser.2011.07.157
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