Patent ID: 6931796

Claim:
An extruded, light-transmitting sheet structure, comprising: a pair of outer walls separated apart from one another; at least one dome formed as part of one of said pair of outer walls, said at least one dome disposed at a first outer edge of the structure; a wing extending from a second edge of the structure, said wing having configuration so as to be able to overlap a dome of an adjacent sheet; a rib structure disposed between said pair of outer walls, said rib structure further comprising a plurality of ribs, including diagonally disposed ribs and vertically disposed ribs, wherein said rib structure includes at least one of said vertically disposed ribs extending into said at least one dome; and wherein at least one rib adjacent said wing and at least one rib adjacent said at least one dome is formed at a thickness greater than the thickness of the remaining of said plurality of ribs.