Insulated windows are made from two or more layers of glass with a space between them to provide an insulating effect. Glass Doctor of Orlando, FL will recommend one of many types of insulating windows for your home. The main difference is the space between the glasses, which might contain desiccant material (moisture-absorbing substance) or argon gas.
The glass may also be separated by a super spacer (non-conductive rubber or silicone-foam spacer), also called a warm-edge glass spacer. The space between the panes is permanently sealed and airtight.