Comfort, energy efficiency, ease of operation and ownership are built into every Polaris UltraWeld® window. Tough Polaris® vinyl extrusions are "ultra-welded" at every corner to create seamless and strong windows. Vinyl itself is not a thermal conductor.
This and many other energy saving features are standard. Hardware operates effortlessly and is designed with style and strength. Your new vinyl windows will retain their weather tight barrier and pristine appearance for a lifetime.