The roof consists of a series of layers on top of the plywood decking. First, the plywood decking was vacuumed and mopped, before the firestone self adhesive underlayment was placed. The next layer is sheets of 2" rigid insulation that are attached with 3" epoxy coated screws with large galvanized washers. Cant strips were placed in the intersection of the roof and parapet walls. Another layer of the firestone self adhesive underlayment, was applied. The top layer is a firestone rubberized cold application roof with a white granular finish. The remaining exposed parapet will be parged on the interior side.