Slab for roof and/or facade covering of building, has back part asymmetrically running in arc section, and front part asymmetrically running in another arc section, which begins with distance from base, where latter arc section ends in heel

摘要

The slab (1) has a back part (3) asymmetrically running in an arc section according to type of an arc section mold and beginning with distance from a head (4). The arc section ends in a heel (6), where the back part and a base (5) of the slab exhibit visible break edges (7, 8), and a front part (9) and the head exhibit invisible break edges (11, 12). The front part asymmetrically runs in another arc section, which begins with distance from the base, where the latter arc section ends in another heel (10). The slab is made of clay, fibrated concrete and plastic.