Green roof systems are living vegetation installed on the roofs and can provide many environmental and social benefits for achieving low carbon high performance building. This paper describes the major findings of a research to develop technical guidelines for green roof systems in Hong Kong. The current knowledge and latest trends of green roof technology in the world have been studied. Useful information and experience were examined for assessing the potential benefits and key design factors. By investigating the system components and practical considerations of typical green roof projects in Hong Kong and other countries, key information is established for preparing the technical guidelines. It is hoped that the research findings will not only fill in the information gap, but also enable the making of policy and strategy to promote better urban greenery and assess their performance systematically.postprintThe Joint Symposium 2010 on Low Carbon High Performance Buildings, Hong Kong, China, 23 November 2010. In Conference Proceedings, 2010, p. 1-
