Use of panel materials for curtain walls should be in coordination with the building’s function, spatial characteristics, and safety level, so as to ensure structural soundness and operational safety through close collaboration with the architect.
① Laminated glass is suitable for glass curtain walls that potentially get hit and impacted, such as glass railings, glass floors, and glass within 1m above the indoor floor.
② When glass is selected as a supporting structure, laminated glass should be preferred. While the single-piece glass should not be used.
③ Laminated glass is prohibited in emergency exits, evacuation passages and other parts of the building. In those places, it is better to use single-piece glass with obvious marks.
④ In the glass of the point-supported curtain wall, there is generally a large local stress at the support. Ordinary glass has low strength and is difficult to bear. Therefore, high-strength tempered glass and its products should be used. Pay special attention to the edge treatment of the hole edge: fine grinding of the edge & hole, and chamfering of not less than 1mm.
⑤ In order to prevent accidents and terrorist attacks, explosion-proof glass should be used in sensitive parts of important buildings. Explosion-proof glass is a multi-layer high-strength tempered laminated glass. It will not be destroyed or scattered when an explosion occurs. That means, the glass will crack, but remain intact. Explosion-proof glass reduces secondary disasters.
⑥ The door and window glass used for explosion venting shall not be made of laminated glass. Use single-piece tempered glass instead.
⑦ The thickness of the stone slabs of the stone curtain wall should not be less than 25mm for the smooth surface. Meanwhile, the thickness of the burned surface should increase by 3mm, and the area should not be greater than 1.5㎡.
⑧ The minimum thickness of the single-layer aluminum plate of the outdoor curtain wall is 2.5mm.
⑨ Stone should not be used for the curtain wall ceiling. Instead, the lightweight and safe materials such as aluminum plates should be used.