There is disclosed a method for reroofing a substantially flat existing roof of a structure so as to provide a new roof structure having a predetermined slope independent of the slope of the existing roof structure. The structure has a plurality of walls, each wall having an upper end portions. The method comprises the steps of securing an eave connector assembly to the upper end portion of one of the walls, securing a lower cord of an adjustable ridge truss to the substantially flat existing roof, adjusting the web assembly of the adjustable ridge truss so that the upper cord is disposed a predetermined distance above the lower cord, positioning at least one panel member across the upper cord, and connecting the panel member to the upper cord.