PURPOSE: To execute a folded plate roof having natural lighting structure simply.

CONSTITUTION: A folded plate roof has a folded plate roof sheathing 1, a receiver 2 holding the side sections 11 of said folded plate roof sheathing 1 and a light-transmitting cap member 3 capped at the upper ends of the adjacent side sections 11 of left and right folded plate roof sheathings 1, and fitting sections 13 projected to the outside are formed at the upper ends of the left and right side sections 11 of the folded plate roof sheathing 1. Fitting sections 26 receiving the fitting sections 13 of the folded plate roof sheathing 1 are mounted at the left and right side edges of the receiver 2, and engaging sections 33 bent in a folded shape are formed to the left and the right of the cap member 3.