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Where fire shutters of the swinging type are installed in exterior openings, not less than one row in every three vertical rows shall be arranged to be readily opened from the outside, and shall be identified by distinguishing marks or letters not less than 6 inches (152 mm) high.

Related Code Sections

716.2.7 Fire and Smoke Protection Features, Swinging Fire Shutters
Where fire shutters of the swinging type are installed in exterior openings, not less than one row in every three vertical rows shall be arranged ...
716.2.7 Fire and Smoke Protection Features, Swinging Fire Shutters
Where fire shutters of the swinging type are installed in exterior openings, not less than one row in every three vertical rows shall be arranged ...
712.1.3.2 Fire and Smoke Protection Features, Automatic Shutters
shall be of noncombustible construction and have a fire-resistance rating of not less than 1.5 hours. The shutter shall be so constructed as to close ...
712.1.3.2 Fire and Smoke Protection Features, Automatic Shutters
shall be of noncombustible construction and have a fire-resistance rating of not less than 1.5 hours. The shutter shall be so constructed as to close ...