| 摘要 |
A shingle is provided and its method of manufacture, in which granules a re applied to an upper surface of a hardenable coating on a layer of shingle- making material, with granules of different pre-selected visual aesthetics provided in different tab areas, separated by mixtures of granules from adjacent tab areas forming intermedia te areas, and in which the intermediate areas are removed to yield slots separating adjacent tabs, leaving visually sharp, precise starting and ending delineations for the tab s of a given aesthetic, that can be the same as or different than the aesthetic of an adjacent tab. |
