An Insulated Glass Unit(IGU), also called double glazed or triple glazed glass, is a sealed system made of two or more panes of glass separated by a spacer, filled with inert gas(argon), and sealed with butyl and silicone. IGUs are designed to improve thermal insulation, energy efficiency, condensation resistance, and soundproofing.
How long does an IGU last?
High-quality insulated glass units can last 25-30 years without fogging, gas leakage, or edge condensation——especially when made with warm edge spacers and premium sealants. Our IGUs are backed by a 25-year warranty for long-term stability.
What is the U-value of an IGU?
The U-value of an insulated glass unit depends on its configuration(glass thickness, Low-E coating, spacer type, and gas filling).
Standard double glazed IGU: ~1.6—1.8W/㎡·K
High-performance triple glazed IGU with warm edge spacer: ≤1.25W/㎡·K
A lower U-value means better thermal insulation and energy savings.
What are the benefits of using insulated glass units?
Energy savings —— Reduce heating and cooling costs by up to 30%
Condensation prevention —— No frosting on glass edges
