Safety of Green Roof

As I mentioned in the previous journals, the design of the green roof should be calculate the loading of the building. In last week , the one of the green roof building in City University of Hong Kong was collapsed. Luckily, there was no one dead and heavy injured in this case.  However, it caused the whole city concern about the risk of overloaded roofs.




Nowadays, the green roof planning is no need to summit to the government department for approval. As the owner of the building will consider that will be the minor case of construction. Therefore, it will have the risk that the government can not supervise this type of building. Not just the loading of the roof, but also the whole drainage system will affect the safety of whole building structure. Therefore , the green roof should be supervise by the professional approval  and maintenance.



Reference:
http://www.scmp.com/news/hong-kong/health-environment/article/1957404/green-danger-how-trend-put-vegetation-hong-kongs