The name of insulating glass

Insulating glass becomes more and more popular in modern tall building, especially for it characteristics of energy saving (known as reduce heating transmission), sound proof, and colorful color. It is the national regulation to install insulating glass in some countries; of course, more and more countries will regulate to use insulating glass for sure. In order to reduce the building energy consumption and environment pollution, insulating glass plays an important role.

However, do you know what is insulating glass?  How many names does it have?

Let’s see what from Wikipedia: “Insulated glazing (IG), more commonly known as double glazing (or double-pane, and increasingly triple glazing/pane) is double or triple glass window panes separated by a vacuum or gas filled space to reduce heat transfer across a part of the building envelope”.

In a word, two glass, one air gap between them.  An insulating glass unit commonly consists of two (sometimes three) panes of glass separated by a spacer material and sealed together at the edge. The insulating airspace is filled with air or a noble gas, such as argon or krypton inside.

The equipment machines manufacturers usually name it as “insulating glass unit(IGU)”, while it is called “double glass” by most of the house owner.

Name	Short for
Insulating glass unit	IGU	Formal
Insulated glass unit	IGU	Formal
Double glazing unit	DGU	Oral
Double glass	DG	Oral
Sound proof glass		Oral
Energy saving glass		Oral
doble vidriado hermético	DVH	Spanish/Portuguese
стеклопакет		Russian
일반복층유리		Korean
複層（ふくそう）ガラス	Double glass	Japanese
Isolierglas		German

No matter what we called, it is the glass in our life that we love. Not only in north cold Russia, but also in hot weather near equator.

In winter the IGU can keeps cold away from window, while in summer IGU can keep the hot away from window.

Borosilicate Glass: Properties, Production and Applications