OPEN/CLOSED ROOF

PROBLEM TO BE SOLVED: To easily apply an open/closed roof in a simple structure to different sizes or shapes of installation sites at inexpensive installation costs and in a short installation time. SOLUTION: Plural frames 1 are mounted in a roof required area, a number of supporting poles 3 possible to mount and arrange between the frames 1 are provided for a roof sheet 2 to cover the frames 1 along the longitudinal direction of the roof sheet, guide rails are provided for the frames 1 along the longitudinal direction of the frames 1 and rollers supported by the guide rail are provided at both ends of the supporting poles 3 so that the supporting poles 3 being mounted between the frames 1 can be moved along the frames 1. The frames 1 are provided with moving bodies to move along the longitudinal direction of the frames 1, to which the end of the roof sheet 2 or the supporting poles 3 at the end of the roof sheet 2 is/are connected to allow the folding movement and extending movement of the roof sheet 2 with the movement of the moving bodies for free opening/closing between the frames 1.