二、清式屋面琉璃瓦件本节叙述清式琉璃瓦件,系按笔者收集的资料分类、编号并作图示。各种序号也将是本文以后述及屋面构造时所作图示的件活标记。以下按瓦件类、脊件类、饰件类作分类介绍:(一)瓦件类:(见图)。(1)板瓦:又称底瓦,凹面向上,逐块压叠排放,用于屋面。板瓦沾琉璃釉不少于全部瓦面的2/3。 Second, the Qing type roof glazed tile pieces This section describes the Qing-style glazed tile pieces, according to the data collected by the author, classification and numbering and for illustration. The various serial numbers will also be the live markers of the drawings described later in this document. The following categories are classified according to the types of tiles, ridges and ornaments: (1) Tiles: (see photo). (1) Slate: Also known as the base tile, the concave face upwards, which is stacked and discharged in blocks for roofing. The glazed glaze is not less than 2/3 of the total tile surface.