Cover plate for insulating/sealing material fastening unit in flat roof, has spigot, where edge under side of plate has elevations which are thin fins that are arranged transverse to rotation direction

摘要

The plate (1) has a spigot, where the plate surrounds a head plate (9) of a plastic holder. The plate (1) rotates feely around a longitudinal axis (5), where an edge under side of the plate (1) overlapping the head plate points to a sealing path. The edge under side has elevations (14) aligned against the rotation direction. The elevations are thin fins arranged transverse to the rotation direction.