Affordable Window Styles: Whether for your home or an upcoming commercial building project, Cascade Windows offers versatile window styles to fit all of your vinyl window needs. As an Energy Star partner, Cascade Windows is able to achieve optimum efficiency by combining vinyl mainframes with PPG's patented Solarban 60 glass and Cascade's warm edge spacer technology. These windows are designed to block many of the sun's damaging ultraviolet rays. Quality Vinyl Windows & Doors: The structural integrity of Cascade Windows' slider windows and doors is apparent throughout every product offering from the ThermalPro to the WinPro.