小圣百科

You may need to choose the glass product according to the local building regulations. Normally in the north region of China, it is cold and severe cold area, then the lower U- Value becomes the most important factor for you when choose the glass. 

There have three major considerations when we need choose high advanced energy saving glazing: The light Transmittance (TL), the U- value, and Shading Coefficient (SC). 

The overall performance of a window is dependent on the combined effect of frame and glazing components and the air-tightness of the finished window. Ratings maybe improved by decreasing thermal losses.

Appearance (when viewed from the exterior): the aesthetic appearance of the glass (color, intensity, reflection) depends on 4 factors.

Optimum transparency: due to its perfect clarity SGG glass allows the true color of display items to be seen and excellent vision quality when viewing through the glass.