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A sheathing element for covering a preexisting physical structure comprising a first planar portion disposed at an angle to a second planar portion, a longitudinally extending slot located centrally along a longitudinally extending edge of the first planar portion or the second planar portion, and a

A sheathing element for covering a preexisting physical structure comprising a first planar portion disposed at an angle to a second planar portion, a longitudinally extending slot located centrally along a longitudinally extending edge of the first planar portion or the second planar portion, and a longitudinally extending tongue located centrally along a longitudinally extending edge of the first planar portion or the second planar portion such that the longitudinally extending tongue of a first sheathing element fits within the longitudinally extending slot of a second sheathing element in a grippable yet releasable manner.

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1. A sheathing element for covering a preexisting physical structure, the sheathing element comprising: a first planar portion having a first longitudinally extending edge and a second longitudinally extending edge;a second planar portion having a first longitudinally extending edge and a second lon

1. A sheathing element for covering a preexisting physical structure, the sheathing element comprising: a first planar portion having a first longitudinally extending edge and a second longitudinally extending edge;a second planar portion having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the second planar portion abutting the first longitudinally extending edge of the first planar portion such that a substantially 90° angle is disposed between the first planar portion and the second planar portion;a longitudinally extending slot located centrally along one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion; anda longitudinally extending tongue located centrally along the other of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, the longitudinally extending tongue comprising a longitudinally extending central projecting flange having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the longitudinally extending central projecting flange abutting one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, a first longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange and symmetrically opposed from a second longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange, the first longitudinally extending outwardly convex flange and the second longitudinally extending outwardly convex flange defining a longitudinally extending gap therebetween; and furtherwherein said longitudinally extending slot is defined by inwardly concave opposing surfaces that are configured to cooperate with said first and second outwardly convex flanges of said longitudinally extending tongue to enable the longitudinally extending tongue of a first sheathing element to fit within the longitudinally extending slot of a second sheathing element in a grippable yet releasable manner. 2. The sheathing element of claim 1, wherein at least one of the first planar portion and the second planar portion further comprises a first planar surface spaced apart from and parallel oriented to a second planar surface, the first planar surface connected to the second planar surface by at least one longitudinally extending rib. 3. The sheathing element of claim 1, wherein at least one of the first longitudinally extending edge of the first planar portion and the first longitudinally extending edge of the second planar further comprises a longitudinally extending chamfer located along one longitudinally extending side of the longitudinally extending edge. 4. The sheathing element of claim 1 wherein the longitudinally extending slot further comprises a longitudinally extending channel of a first width in communication with a longitudinally extending cavity of a second width, the second width being greater than the first width. 5. The sheathing element of claim 4 wherein the longitudinally extending cavity is further comprised of a first longitudinally extending angled surface directly opposed to a second longitudinally extending angled surface, the first longitudinally extending angled surface and the second longitudinally extending angled surface each having a first longitudinally extending edge, the first longitudinally extending edge of the first longitudinally extending angled surface abutting the first longitudinally extending edge of the second longitudinally extending angled surface such that an angle is disposed between said first longitudinally extending angled surface and said second longitudinally extending angled surface. 6. The sheathing element of claim 1 wherein one of said first planar portion and said second planar portion further comprises a longitudinally extending groove. 7. A sheathing element system for covering a preexisting physical structure, comprising at least a first sheathing element and second sheathing element, each of said at least first sheathing element and second sheathing element comprising: a first planar portion having a first longitudinally extending edge and a second longitudinally extending edge;a second planar portion having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the second planar portion abutting the first longitudinally extending edge of the first planar portion such that a substantially 90° angle is disposed between the first planar portion and the second planar portion;a longitudinally extending slot located centrally along one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion; anda longitudinally extending tongue located centrally along the other of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, the longitudinally extending tongue comprising a longitudinally extending central projecting flange having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the longitudinally extending central projecting flange abutting one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, a first longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange and symmetrically opposed from a second longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange, the first longitudinally extending outwardly convex flange and second longitudinally extending outwardly convex flange defining a longitudinally extending gap therebetween;wherein said longitudinally extending slot is defined by inwardly concave opposing surfaces that are configured to cooperate with said first and second outwardly convex flanges of said longitudinally extending tongue; and furtherwherein the longitudinally extending tongue of the first sheathing element fits within the longitudinally extending slot of the second sheathing element in a grippable yet releasable manner to connect the first sheathing element to the second sheathing element. 8. The sheathing element system of claim 7 wherein the first and second sheathing elements are configured identically. 9. The sheathing element kit of claim 8 wherein the length of said first planar portion is substantially shorter than the length of said second planar portion in a plane normal to said substantially 90° angle. 10. A sheathing element kit for covering a preexisting physical structure, comprising four identically configured sheathing elements, each of said four sheathing elements comprising: a first planar portion having a first longitudinally extending edge and a second longitudinally extending edge;a second planar portion having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the second planar portion abutting the first longitudinally extending edge of the first planar portion such that a substantially 90° angle is disposed between the first planar portion and the second planar portion;a longitudinally extending slot located centrally along one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion; anda longitudinally extending tongue located centrally along the other of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, the longitudinally extending tongue comprising a longitudinally extending central projecting flange having a first longitudinally extending edge and a second longitudinally extending edge, the first longitudinally extending edge of the longitudinally extending central projecting flange abutting one of the second longitudinally extending edge of the first planar portion and the second longitudinally extending edge of the second planar portion, a first longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange and symmetrically opposed from a second longitudinally extending outwardly convex flange abutting and adjoining the second longitudinally extending edge of the central projecting flange, the first longitudinally extending outwardly convex flange and second longitudinally extending outwardly convex flange defining a longitudinally extending gap therebetween;wherein said longitudinally extending slot is defined by inwardly concave opposing surfaces that are configured to cooperate with said first and second outwardly convex flanges of said longitudinally extending longue; and furtherwherein the longitudinally extending tongue of a first of said four sheathing elements fits within the longitudinally extending slot of a second of said four sheathing elements in a grippable yet releasable manner to connect the first sheathing element to the second sheathing element, wherein the longitudinally extending tongue of said second sheathing element fits within the longitudinally extending slot of a third of said four sheathing elements in a grippable yet releasable manner to connect the second sheathing element to the third sheathing element, wherein the longitudinally extending tongue of said third sheathing element fits within the longitudinally extending slot of a fourth of said four sheathing elements in a grippable yet releasable manner to connect the third sheathing element to the fourth sheathing element, and wherein the longitudinally extending tongue of said fourth sheathing element fits within the longitudinally extending slot of said first sheathing element in a grippable yet releasable manner to connect the fourth sheathing element to the first sheathing element, to thereby form a rectangular-shaped enclose surrounding the preexisting physical structure. 11. The sheathing element system of claim 10 wherein the length of said first planar portion is substantially shorter than the length of said second planar portion in a plane normal to said substantially 90° angle.