The trend in building supertall residential buildings with large glass pane and window openings has becoming a modern building design. It is well understood that with this design, better views and borrowing more light from the outside environmental are well known and accepted by people living in metropolitan city like Hong Kong. However, there is no report specifically on the fire safety issues related to this kind of building feature. The study aims to look into the trend and associated fire risks for large window pane opening area, wall area and floor area of each flat (unit) on the building storey as well as the relationship amongst each other. These specific design features will be studied separately using statistical method to ascertain the general trend in the latest building designs. Other issues on how big are the glass panes used in the design and the minimum heat release rate leading to a flashover fire in the compartment are also investigated. In view that fire spreading to upper floor through breakage of the window pane is common in fire situation and might resulting more fatalities and injuries, a brief account on the glass breakage is also presented.
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