Patent ID: 7178306
Filing Date: 2007-02-20
Classification: E04D

Abstract:
1. A method of securing a single ply membrane roofing system to a roof deck, wherein said roofing system includes a first membrane with a longitudinally extending first membrane free edge to be secured to said roof deck by transversely spaced fasteners comprising fastener members extending through fastener plates having surrounding fastener plate edge face surfaces, said roofing system having a second membrane with a second membrane edge portion overlapping said first membrane free edge and bonded to said first membrane via a continuous weld bond along the edge of said second membrane such that said first membrane free edge projects forwardly from said weld bond to define a first membrane fastening projection extending forwardly from said first membrane free edge under said second membrane, the method comprising the steps of: a. with said roofing system applied to said roof deck and while maintaining said second membrane in a peeled back position from said weld bond and said first membrane fastening projection, placing said fastener plates and said fastener members at spaced positions into said roof deck to mechanically secure said first membrane fastening projection to said roof deck; b. with said second membrane in said peeled back position, applying a liquid adhesive over said first membrane fastening projection and over and around said fastener plates and said fastener members from said weld bond forwardly to provide a continuous adhesive coating on said first membrane fastening projection and over said fastener members and said fastener plates and around said fastener plate edge face surfaces; and c. lowering said second membrane to cover and adhere to said first membrane fastening projection and said fasteners and provide a substantially continuous monolithic bond comprised of said weld bond and said adhesive coating.