Insulating glass units, or IGU’s, are designed to keep home warmer during the wet season and cooler in the summer. An insulating glass unit commonly consists of two (sometimes more) 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. Each glass pane has two surfaces, so typical double-paned IGUs have four surfaces.
Spacers, features a unique design that creates an effective thermal barrier at the edge of the IGU to help reduce conducted heat loss through the window, making them stronger and better at retaining insulating gas than many conventional designs.