Abstract: A metal shingle system which is resistant to leakage, even under severe weather conditions. The key attribute of the new system to the design of the side edge of the shingle such that water that seeps between adjacent shingles cannot be blown upward. Briefly, the top edge is overturned and the bottom edge is underturned such that they can be interconnected as is well known in the art. One side edge is folded to form a gutter area into which water that seeps between laterally adjacent shingles is collected and drained onto the lower row of shingles. The top of the gutter area is blocked by the overturned top edge, which extends into the gutter region. Also disclosed is an improved tool for cutting the shingles, such as is needed around obstructions and at the end of the roofline.

Abstract: A shingle system comprising a fastening strip and a plurality of shingles. The fastening strip includes a top flange portion and a fastener portion. A gasket is located along a bottom surface of the fastening portion. The plurality of shingles each include top and bottom edges and opposing side edges. The bottom edge includes an underturned flange for engaging the top flange portion of the fastening strip. Overturned or underturned flanges are provided on the side edges to connect adjacent shingles along the sides. In a further embodiment, the shingles comprise first and second shingle configurations where the first shingle configuration includes side edges that are tapered and either overturned or underturned, and where the second shingle configuration includes side edges having an opposite taper to the first shingle configuration as well as an opposite flange. In a further embodiment, the shingle system further comprises a roof cap including tailing and leading edges and opposing side edges.

Abstract: A shingle system comprising a fastening strip and a plurality of shingles. The fastening strip includes a top flange portion and a fastener portion. A gasket is located along a bottom surface of the fastening portion. The plurality of shingles each include top and bottom edges and opposing side edges. The bottom edge includes an underturned flange for engaging the top flange portion of the fastening strip. Overturned or underturned flanges are provided on the side edges to connect adjacent shingles along the sides. In a further embodiment, the shingles comprise first and second shingle configurations where the first shingle configuration includes side edges that are tapered and either overturned or underturned, and where the second shingle configuration includes side edges having an opposite taper to the first shingle configuration as well as an opposite flange. In a further embodiment, the shingle system further comprises a roof cap including tailing and leading edges and opposing side edges.