Insulated glass, also called IGU’s or double glazed units (DGU’s), it’s a
hermetically sealed multi-glass combination consisting two or more panels
separated by a aluminium spacer bonded together using a primary sealant, with
the void filled with air or inert gas, and secondary sealant to finally seal the
edge of the IG unit. IGU’s are a significantly more energy efficient glazing
system than ordinary single glass. The combination of air gap between glass
panels act as an additional barrier avoiding the transfer of heat by convection
and conduction providing a better U value. The most important function of
insulated glass is thermal performance, achieving lower energy consumption.
