This paper studied the problems and solutions in the construction of roof garden in the old buildings. Many cities have adopted policies to ensure the green roofs of new buildings, but more widespread of old buildings were ignored. Although the market potential is very huge, it has been neglected. This paper discusses the solutions of the construction the roof garden in the old buildings from three aspects: the safety of structural load, the roof waterproof, drained and the arrangement of plants. It is intended to provide a reference for research and application of the technology in construction roof garden in old buildings.
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