Patent ID: 7748189
Filing Date: 2010-07-06
Classification: E04D,E04F

Abstract:
1. A tile comprising: a tile base, an underlap portion formed on each of an upper side and one of a right-hand side and a left-hand side of said tile base, an overlap portion having identical shape with said underlap portion and formed on each of a lower side and the other of the right-hand side and the left-hand side of said tile base, a step portion having a step size equal to a thickness of said lower side of said overlap portion and formed at a position lower than said upper side of said tile base by a distance equal to a dimension of said lower side of said overlap portion, wherein said underlap portion includes an area defined by said upper side of said tile base and said step portion, and a clamp portion projected from a rear upper side of said upper side of said underlap portion, wherein said clamp portion is engaged with a backing horizontal bar, wherein said tile is arrangeable vertically and horizontally in a self-interlocking manner with other identical tiles and is characterized by having a tilt portion tapered thinner toward the lower end of a front surface of said tile base.