April 6, 2005—The American Society of Landscape Architects (ASLA) is replacing the roof on its Washington, DC, headquarters building with a green roof, according to the association.
Michael Van Valkenburgh Associates, Inc., will lead the design process, collaborating with Conservation Design Forum to develop the design and specifications for the approximately 3,300-square-foot roof surface.
A green roof is a roof substantially covered with vegetation. Studies show that green roofs provide economic, environmental, and esthetic benefits. They last longer than conventional roofs, require less maintenance and save on heating and cooling costs, according to the association.
Founded in 1899, ASLA is the national professional association for landscape architects. For more on the organization, visit its Web site. For more about green roofs, visit the Green Roofs for Healthy Cities Web site.
