A two-component deck flashing system and method for installing the same. The system utilizes “L” flashing strips with attached cleats utilizing clinch lock joints to alleviate the need for fasteners which might otherwise penetrate and easily damage waterproof sheeting materials. A cover plate is attached to the cleats to define the outside edge of the topping surface. This two component system is designed for installation at wall-to-deck junctures by incorporating a form of a wall “saddle” flashing having one or more wall plates with attached “L” flashing extension with cleats and cover plate extensions. All components are integrated with and overlapping adjacently installed components to provide a flush, easily sealed and maintained, top surface. This two-component deck flashing system can be installed more easily and effectively in the field than prior art systems.