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Where can tempered glass not be used?
Roof surfaces, ceilings, and skylights: Under normal circumstances, tempered glass should not be used in these areas. This is because multiple factors must be taken into account, including snow loads, the potential for maintenance personnel to walk on the glass, and the safety of people beneath it. When the highest point of the roof glazing is more than 5 meters above the ground, tempered glass is prohibited in these applications.
2022-08-20
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In general, tempered glass is not recommended for roofs, ceilings, or skylights. This is because multiple factors must be considered, including snow loads, the potential for maintenance personnel to walk on the surface, and the safety of people below. When the highest point of a roof‑mounted glass panel is more than 5 meters above the ground, tempered glass should not be used in these applications. It should also be noted that laminated tempered glass is similarly unsuitable for these areas, as it may fall under its own weight or additional loads once broken. Furthermore, floor glass is not appropriate for use as flooring—especially for suspended floors—because tempered glass loses its structural integrity and cannot maintain its original shape after breaking. Instead, laminated glass should be selected for floor applications, and any floor glass intended for pedestrian traffic should be treated with an anti‑slip finish. For railings and frameless balconies on high‑rise buildings, tempered glass with a minimum thickness of 5 mm is required for railings that do not bear horizontal loads, while railings subjected to horizontal loads must use tempered glass with a minimum thickness of 12 mm.
However, tempered glass is not suitable for exterior railings or frameless balconies on high-rise buildings. This is because, in some cases, when tempered glass breaks, certain fragments do not shatter into separate pieces but instead retain their original shape; particularly with thicker glass, this can result in a relatively heavy shard.
When such shards of broken glass fall from great heights, they can pose a serious hazard to pedestrians below, potentially resulting in injuries or fatalities. Additionally, there are applications where, even after breakage, the glass must retain its structural integrity, or where it is essential to minimize the risk of injury caused by glass fragments.
Keywords:
Tempered glass,Glass doors and windows
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Address: Zhouyuan Industrial Park, Chencang District, Baoji City, Shaanxi Province