Introduced the first fiber glass sliding patio door in the United States Introduced the FIBERFRAME window system in the United States COMFORT LINE Fiber Glass Patio Doors: Recognized as the Patio Door of the Future Silver Award for Achievement for FIBERFRAME Patio Door U.S. Department of Energy Certifies every COMFORT LINE Fiber Glass window unit is Energy Star Compliant Leader in meeting contractor time and materials needs and product quality control
