Guardian Glass is a leading global manufacturer of commercial, residential, automotive, energy/solar, and technical glass. The company's glass products include InGlass (interior glass), SunGuard (advanced architectural glass), ClimaGuard (residential glass), EcoGuard (glass for solar energy systems), and technical glass for electronics, lighting, and commercial refrigeration. Its glass performs a variety of functions for buildings, such as insulate, reflect heat, save energy, and beautify. Guardian Glass is a subsidiary and one of three business units operated by privately held Guardian Industries.