SECURING FASTENER FOR WATERPROOF ROOF

摘要

A fastener for securing a flexible waterproof sheet to a supporting roof structure. The fastener includes an elongated mounting bracket having a base and a body including an upstanding central portion and a pair of wing members extending laterally from opposite sides of the central portion of the body. Each of the wing members include an outer tip spaced above the base which defines a sheet-receiving recess therebetween. The fastener also includes an elongated cap member for attaching a flexible waterproof sheet to the bracket. The cap member includes a top and a pair of opposite depending flange members each including outer edges which are movable between a first expanded position loosely surrounding the body of the mounting bracket and a second contracted position wherein the outer edges are disposed within the sheet-receiving recesses for sandwiching a waterproof sheet between the cap and the wing members so that the sheet is clamped therebetween and a waterproof seal is provided by the sheet bearing against the wing members. A method of securing a flexible waterproof sheet on a supporting roof structure is also disclosed.