The ProTek® YSD 600 TH is a thermally broken impact resistant architectural (AW) rated sliding glass door designed to provide greater energy efficiency and occupant comfort. The engineering behind the design concept provides enhanced structural capabilities by using aluminum reinforcement instead of steel. This sliding door is designed to accept standard tempered 1″ insulated or laminated 1-3/16″ thick insulated units. All panels, fixed and operable, may be pre-glazed in the shop to take advantage of a controlled environment and less expensive shop labor.