The cover material is 8mm twin-walled polycarbonate thermal glazing manufactured by General Electric Structured Product Division. The frame is US grade 6061-T6 reinforced extruded Alcoa Aluminum alloy which alloys us to manufacture one-piece seamless arches. The cover is secured to the cement by removable hinges, which attach to drop-in anchors for easy operation and added security during high wind and heavy snow load conditions.