The main varieties of architectural glass is flat glass, with the surface crystal bright, transparent, sound insulation, thermal insulation, wear-resistant, climate change resistance, material stability and so on. It is quartz sand, sandstone or quartzite, limestone, feldspar, dolomite and soda ash as the primary raw materials, by crushing, screening, batching, high-temperature melting, molding, annealing, cooling, processing and other processes made. Glass is closely related to our life, glass began to be used for building only for daylighting, and has developed to this day, along with the addition of types of glass and the improvement of performance, as well as environmental protection and energy-saving calls for increasing, the construction of the higher requirements on glass, mainly reflected in the following aspects:

（1）Daylighting

Daylighting is a basic requirement for glass, but now it has been raised even higher than the introduction of sunlight into the interior. Now the requirements are put forward for the angle of daylighting, visual effect, cost saving of artificial lighting, indoor shading, light transmittance of glass and image distortion.

（2）Safe

In the past there was no safety concept in the construction of glass, glass formed a large number of natural forces or the impact of the human form broken, causing personal casualties, forming a large number of spoils. Now our country has drawn up the relevant safety code, stipulating that there must be a design process before the glass is installed, concluding that when the glass is subjected to wind pressure, thermal stress, hail, falling objects, earthquake and human body impact, whether to ensure safety.

（3）Energy saving

Now, building energy-saving as an important part of our energy-saving program, has been mentioned the agenda. The proper use of energy-saving glass varieties is an important method to achieve energy-saving construction.

（4）Fire protection

Glass with fire protection function must be used in the fire fighting passageway of the building. The glass should have a certain degree of transparency, can see the extent of flame spread, together, should have a certain time after the ability to isolate the flame, so that the smooth dispersion of personnel.

（5）Security

The emergence of Bulletproof glass, anti-theft glass and alarm glass, play a role in protecting the financial, so that some key construction of the entrance and exit, partition more security. Now these kinds of glass are popularized for civil construction, which can remove the unsightly iron windows and iron doors on the building, so that the building can ensure safety without losing the beautiful original appearance.