| 摘要 |
A generally rectangular roofing element adapted to be positioned with other similar elements in an overlapping relation to yield a simulated slate roof covering comprising a main body portion bordered by a top edge, butt edge, leading edge and trailing edge. The leading and trailing edges extend between the top edge and the butt edge. A headlap portion is provided and is bordered by the top edge. A butt portion is also provided and is bordered by the butt edge. At least a portion of the headlap portion is substantially darker than the butt portion in the area of contact with the butt portion. The darkened portion in the area contact with the butt portion forms a substantially straight line parallel to the butt edge. The butt portion includes a series of laterally adjacent simulated shingles extending from the leading edge to the trailing edge. Each simulated shingle has an edge forming a portion of the overall butt edge. In addition, each simulated shingle is provided with a simulated keyslot extending from the butt edge rearwardly towards the headlap portion and in contact therewith. The simulated keyslot has a coloration similar to the darkened headlap portion and is integral therewith. The simulated keyslots are equal in width and form a parallel series along the butt portion whereby the first of the series of simulated keyslots is spaced inwardly from the leading edge and the last of the simulated keyslots is positioned adjacent to the trailing edge.
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