TWI654359B

A corrugated sheet assembly includes a corrugated sheet and a water stop member disposed on the corrugated sheet. The corrugated sheet includes a bottom plate body, a top plate body, and a foaming material. The bottom plate body and the top plate body together define a receiving space for accommodating the foaming material. The top plate body has at least two arc portions convex outwardly away from the bottom plate body, and at least one planar portion connected to the arc portions. The arc portions are spaced apart in a second direction perpendicular to the first direction. The water stop member includes a connecting portion extending in the second direction, at least one outer water blocking portion extending from the one side of the connecting portion in the second direction to the planar portion, and a positioning portion connected to the at least one outer water blocking portion, extended in the first direction and attached to the planar portion.