What are the requirements for window glass in high-rise buildings

Article 6 of the Regulations on the Management of Building Safety Glass

The following parts of the building that require glass as the building material must use safety glass:

1. Windows are installed outside buildings with floors 7 and above.

2. Window glass with an area of more than 1.5m2 or the bottom edge of glass (the boundary between the transparent part of glass and the opaque part covered by glass installation materials after the glass is assembled in the frame) is less than 500mm away from the installation surface of french window.

3. Curtain wall (excluding full glass curtain).

4. Inclined assembly windows, various types of ceilings (including skylights and skylights), and suspended ceilings.

5. Sightseeing elevator and its outer enclosure.

6. Indoor partitions and screens.

7. Rails for stairs, balconies, platform corridors, and guardrails in the atrium.

8. A floor panel used to withstand pedestrian walking.

9.The entrances and exits, foyers, and other parts of public buildings (including 1. door glass 2. glass installed above the door 3. glass installed on both sides of the door, with a distance of less than 300mm between the vertical edge near the doorway opening and the doorway opening).

Types of glass used in high-rise buildings:

1. Endothermic glass

Heat-absorbing glass is a flat glass made by introducing colorants (such as iron oxide and nickel oxide) with endothermic properties into the glass liquid or spraying a thin film of endothermic colored oxides (such as tin oxide and antimony oxide) on the glass surface.

Heat absorbing glass generally appears in colors such as gray, tea, blue, green, bronze, pink, gold, etc. It can absorb less than 70% of infrared radiation energy while maintaining good transmittance and the ability to absorb some visible and ultraviolet light. It has functions such as anti glare and anti ultraviolet.

Heat-absorbing glass is suitable for large public buildings that require both lighting and insulation, especially in hot areas where air conditioning is required to avoid glare. It can also be used for windows, curtain walls, commodity display windows, computer rooms, and windshields for trains, cars, and ships. It can also be made into products such as interlayer and insulating glass.

2. Thermal reflective glass

Heat reflective glass is a coated glass made by spraying metal and metal oxides such as gold, silver, aluminum, copper, nickel, chromium iron, or pasting organic thin films on the surface using heat, evaporation, chemical and other methods. Thermal reflective glass has high thermal reflection ability to sunlight, low thermal transmittance, and generally has a thermal reflection rate of over 30%, up to around 60%. It also maintains good transparency, making it a more effective modern anti solar glass.

Heat reflective glass has unidirectional perspective, and its facing surface has specular reflection characteristics. It not only has beautiful colors, but also can map the surrounding scenery, making the building and surrounding landscape coordinated.

Its glass backlight is the same as transparent glass, allowing for a clear view of outdoor scenery. Heat reflective glass is suitable for doors and windows, glass curtain walls, public building foyers, and various decorative parts of modern high-end buildings. It can be used to make double-layer hollow glass and form glass curtain walls with air layers, achieving excellent thermal insulation and energy-saving effects.