Pinch fusion-welding construction creates a solid, one-piece unit with no excess variance for long-term durability
Warm Edge glass spacer system reduces thermal transfer around the glass perimeter by using a unique U-shaped channel to separate glass panes and interrupt the natural flow of heat to cold; upgrade to Warm Edge+ for enhanced performace
All product styles can be configured to meet ENERGY STAR® in all states
NFRC rated and certified
3" frame depth for traditional pocket window installation
Designed with equal sight line sash on single hung for traditional wood window appearance
New Generation uiPVC vinyl never needs painting or caulking and resists conducting heat and cold
Hidden SilLock design on single hungs with a step sill, including weep holes which forces water to drain to the exterior of the window, keeping your windows dry and providing enhanced weather-tight performance.