The paper had studied localized design and construction of roof garden.Starting from the history of roof garden,it summarized development of roof garden.It was considered that roof garden could not only provide public rest space,realize thermal insulation and noise reduction of architectures,help water-storage and urban drainage;but also beautify environment,ameliorate regional climate,enrich urban landscape,help to increase ground greening area and improve ecological quality.Finally,some designing principles for roof garden had been proposed,including ① enhancing security consciousness and highlighting roof load design;② emphasizing ecological use and stressing greening coverage;③ manifesting artistic feature;④ investing cautiously,saving construction cost and paying attention to later maintenance.
