| 摘要 |
<p>A gripping assembly for attaching a roofing membrane (28,30) to a roof (18) includes a generally planar plate (10,68) having a generally central opening (52,82) and an oblong peripheral edge (42,72) . The plate (10,68) includes a top surface (50,80) facing away from the roofing membrane (28,30) a projecting rib (54,86) and a plurality of gripping formations (44,74) for preventing slippage of the roofing membrane (18) relative to the plate (10,68). The central opening (52,82) is larger in diameter than the diameter of a corresponding threaded fastener (20) so that the plate (10,68) is permitted a specified amount of rocking when subjected to a membrane (28,30) uplift force. <IMAGE></p> |
