Patent ID: 8590251

Claim:
A tile for covering floors, comprising one or more metallic plates having an external tile surface and an internal tile surface, said tile being placed on a rough surface, at least one of said metallic plates is provided, on at least two opposite sides, with folds forming complementary male and female shaped coupling elements for reciprocal insertion joints, standing between an external tile surface and the rough surface, each female insertion and coupling element being shaped to receive and retain a complementary male insertion and coupling element of an adjacent tile, wherein the female insertion and coupling element comprises an open Z-shape comprising a first fold defining an external outside end of the metallic plate that is folded toward and into overlaying contact with an internal surface of the metallic plate and a second fold in an opposite direction such that the metallic plate extends into alignment with the external outside end of the metallic plate defining an external inside end of the metallic plate, wherein the internal surface of a portion of the metallic plate after the second fold that extends into alignment with the external outside end of the metallic plate is positioned to rest on the rough surface, and wherein the male insertion and coupling element has an L-shape that comprises a fold down across a thickness of the tile and has a free edge that is positioned to be parallel to the rough surface, wherein said free edge is configured to enter inside a U-shape shape portion of the Z-shape defined by the second fold of the female insertion and coupling element of the adjacent tile in such a way to form a continuous and closed tile plane.