These are units made by combining two or more glass plate and filling gap between glass plates with gases (argon etc.) that will provide proper dry air or insulation compatible with ambient pressure.
In order to create an air or gas gap between the glass plates, a spacer strip should be used and dehumidifier materials should be put in spacer strips. The glass plates and spacer strips must be joined using internal insulating material (butyl / polyisobutylene) and external insulating material must be applied to seal the insulating glass.
Thickness of the glass forming the insulation glass should be determined by considering loads such as wind, snow and so on.
