This book is essential reading for everyone interested in or committed to energy-efficient buildings and Introduces the range of green roofs available, from the small garden shed to towering skyscapers. It discusses the role of the green roof as part of an overall greening of a building and landscape, advises on types of vegetation to be grown and mainetenance required, warns of problems that can be encountered, analyses the green roof movement, reports on its success thus far and looks to the future. It also describes residential and business case studies from across the world--Cover.