顶棚构造傅信祁１．木顶棚一般多为条板。常见的规格为９００毫米宽、１．５０～６．００米长，成品有光边、企口和双面槽缝等种类。通常有企口平铺离缝平铺、嵌缝平铺和鱼鳞斜铺等形式。其中离缝平铺的离缝约１０～１５毫米，在构造上除可钉结结外，常采用四槽边板，用隐... Roof structure Fu Xinyi 1. Wood ceilings are generally strips. The common specifications are 900 mm wide and 1.50 to 6.00 meters long. The finished products have light, size, and double-sided slots. There are usually outlets in the form of tiles, seams, and scales. Among them, about 10 to 15 mm away from the seam, about 4 to 15 mm away from the seam. In addition to the structure, the four-slot side board is used...