The SL82 structurally glazed folding glass system from NanaWall can be used for openings up to 39 feet wide. The system features a single track with bottom-supported rollers; hinges and rollers are adjustable. Inside and outside door handles with catch bolt, lock and profile cylinders, and a concealed integrated multi-point locking system offer security. The panels, which have a maximum size of 39x96 in., can be triple glazed up to 1.5 in. for U-values as low as 0.29. The system is 12 PSF-water tested, with seals running at three different levels to protect from wind and driving rain. NanaWall Systems
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