| 摘要 |
Metal roofing shingles including triangular shaped gable and eave starting shingles and square or rectangular shaped shingles covering the main body of the roof, the shingles being laid in courses whereby their edges run at an angle from the gable ends and eave edges upwards towards the ridge of the roof and under a ridge cap. Each of the shingles is secured to the underlying roof structure by a roofing nail passing through the uppermost corner of the shingle. The lowermost edges of the shingles are interlocked over and under the uppermost edges of adjacent shingles and have their lowermost corners overlapping the uppermost roofing nail secured corner of adjacent shingles. The edges of the triangular shaped shingles adjacent to the gable ends and eave edges of the roof are folded under and inwards in locking engagement with folded protruding edges of gable and eave starter lengths of formed sheet material which have been secured to the gable end and eave edges of the underlying roof structure. The ridge cap covering the upper portions of the shingles is in two longitudinal parts, the under part being secured by roofing nails passing through theunderlying shingles to the underlying roof structure. The upper part of the ridge cap has inturned lower edges which slidingly engage with folded over edge portions of the under part of the ridge cap.
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