How does the facade of the curtain wall do the insulation?
Glass, if it is a new building can be directly selected LOW-E. Has been built, you can consider the glass coated with a layer of insulation coating.
Mainly to see your external walls is the use of glass or stone or aluminum, and in general, the stone insulation effect is better, but the light transmission performance is poor.
If the area is not large, I suggest you use LOW-E glass, lighting effect is good, the insulation performance is generally coupled with the broken bridge, then you can go to 2.5 or less, in line with the three-step energy-saving standards on the OK.
