Green roofs, also known as eco roofs and nature roofs, are vegetated roof coverings consisting of living vegetation on top of a modified conventional roof system.
Extensive systems are similar in weight to conventional gravel roofs and can be installed on any roofing deck, flat or sloped up to 45 degrees. Heavier intensive systems, which can include landscape planters and walkways, are intended for flat roofs with additional structural support.
The sod roofs and walls of buildings in Iceland provided the inspiration for the green roof concept. The technology emerged in Germany over 30 years ago and is in widespread use across Europe.
To demonstrate and promote green roof research, education, and technology in the Northeastern United States. Includes news, research, faculty profiles, and links.
Why city officials are encouraging green roofs.
Dedicated to creating a green roof marketplace in North America. Includes news, upcoming events, FAQ, projects, public policies, and research.
Information about green roof architecture including history, advantages and issues, plant lists, markets in North America and Europe, case studies, events, and links.
Includes design plans, specifications, costs, and maintenance.
Non-profit UK organisation promoting green roofs. Includes roof types, benefits, issues, research, list of applications in the UK, case studies, and suppliers.
The promotion of green roofs by city governments in Canada, Japan, and the United States.
Includes program information and links to PDF documents.
Article by Elizabeth Daniel about the architecture and its application in Seattle.
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