Metal roof shingle

DETAILED DESCRIPTION An object of the present invention is to provide a metal shingle for use in building structures oriented in overlapping courses and provided with a shallow channel along one edge thereof which opens outwardly which receives a downwardly or inwardly opening corrugation on the side edge of an adjacent aligned shingle.
Another object of the invention is to provide a metal shingle combined with asphalt impregnated felt flashing underlying each layer of shingles with the lower edge of the flashing overlying the upper edge of an adjacent lower course of shingles and extending upwardly beyond the upper edge of an adjacent upper source of shingles so that nails passed through the shingles adjacent the lower edge thereof will pass through three layers of felt and slightly above the upper edge of the shingles in the next adjacent lower course of shingles thereby not only effectively mounting the shingles but also effectively sealing the nails and providing a weatherproof underlayment for the shingles so that any water blown under the shingles or in through the side edges thereof will be shed downwardly or drain out downwardly from the lower edge of the shingles.
A further object of the invention is to provide a metal shingle and flashing assembly in which the shingles are corrugated and provided with an angularly extending lower edge which enables ventilation under the shingles.
Still another important object of the invention is to provide metal shingles corrugated for rigidity and hail resistance, colored and finished in any suitable surface color or finish and constructed of metal of sufficient thickness to be rather rigid but enabling the shingle to be easily cut to fit various building components such as roof valleys and hips, openings in a roof or wall and around various corners, obstructions and the like which may be encountered in conventional building structures.
These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout