Green Roof Benchmarking Program

Green ideas and concepts are of increasing emphasis in Hong Kong in the past few years. This is especially the case in the urban development sectors. It is the policy of the Hong Kong government that pioneers sustainable construction. The Architectural Services Department which is responsible for the majority of the government’s construction projects, adopts innovative sustainable designs that consider environmental compatibility, and the conservation and efficient use of land, energy and material resources. Green roofs involve growing plants on rooftops, aiming at creating greenery in the densely urbanized environment and also mitigating the loss of the vegetated footprint that was destroyed when the building was constructed.

We performed detailed monitoring program to research on the green roof performance, ecological diversity changes, plant species performance, and operation and maintenance performance. Further, to expose the benefits on the green roof application, data on energy saving, storm water retention capacity, and carbon sequestration potential would be evaluated. Developing a bench mark for green roof design, operation and maintenance standard for future reference in Hong Kong's localized context.