Center for Green Roof Research at Penn State University - To demonstrate and promote green roof research, education, and technology in the Northeastern United States. Includes news, research, faculty profiles, and links.
City of Chicago: City Hall Rooftop Garden - Includes design considerations, construction timeline, plants and landscaping [PDF], and monitoring methods and results.
D.C. Greenworks - Nonprofit organization in Washington, D.C. providing job training and design, consulting, and installation services relating to rainwater management.
Green Roofs for Healthy Cities - Dedicated to creating a green roof marketplace in North America. Includes news, upcoming events, FAQ, projects, public policies, and research.
Greenroofs.com - Information about green roof architecture including history, advantages and issues, plant lists, markets in North America and Europe, case studies, events, and links.
LIDC: Green Roofs - Includes design plans, specifications, costs, and maintenance.
Livingroofs.org - Non-profit UK organisation promoting green roofs. Includes roof types, benefits, issues, research, list of applications in the UK, case studies, and suppliers.
Northwest EcoBuilding Guild: Green Roof Project - Developing the technology for wide-scale residential application in the Pacific Northwest. Includes photo gallery, plant list, soils, monitoring options, and links.
