Fastening assembly

Details Fastening assembly Fastening assembly

E - Fixed Constructions

04

D

85/16

E04D 5/14 (2006.01) E04D 3/36 (2006.01) E04D 15/04 (2006.01)

Patent

CA 1306882

ABSTRACT FASTENING ASSEMBLY A fastening assembly (1) for fastening a waterproof membrane and thick insulation to a roof deck comprises a screw threaded fastener (2) having a driving head (9), a clamp plate (5) for spreading the clamping load of the fastening assembly over an area of the surface of the waterproof membrane, a clamp tube (4) having a head (19) and a foot (18). The foot (18) is arranged to be engaged and held by the head (9) of the screw threaded fastener (2) and the head (19) of the clamp tube is arranged to engage and hold the clamp plate (5). An expanding auger (3) is formed between a screw thread (7) of the fastener (2) and the foot (18) of the clamp tube (4). In use, the auger (3) rotates with the fastener to expand the hole in the waterproof membrane through which the fastener (2) is inserted so that it accommodates the clamp tube (4) of the fastening assembly (1).

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