| 摘要 |
<p>The invention relates to a roof stone or roof tile for laying on a roof understructure with overlap cover, wherein the roof stone or tile has at least one fastening pin which is inserted in the underneath and protrudes away from same and wherein the fastening pin is designed and arranged so that it is to be fastened on the roof understructure by way of a retaining clip which engages round a part of the roof understructure, wherein the fastening pin can be brought into form- fitting engagement with a recess in the retaining clip in order to fasten the roof stone or tile on the retaining clip. At the position of the fastening pin, the distance between two underneath sides of two regularly stacked roof stones or roof tiles, minus the thickness of the roof stone or roof tile, is more than the length the fixing pin protrudes from the underneath side of said roof stone or roof tile.</p> |
