"May 2006." Issued also in French.

Includes bibliographical references.

Introduction to green roofs -- Green roof policies worldwide -- Canada -- United States of America -- International -- More case studies -- Resources.

Green roofs are vegetated roof covers which can improve stormwater management, increase green space in dense urban areas and help reduce a building's contribution to the heat island effect. This manual is an overview of international and Canadian green roof policies and programs, and features 12 jurisdictions that have successfully established supportive programs and advanced the green roof movement in their communities. .