Specifications include, but are not limited to: asphalt bituminous roof system, flashings, rigid insulation, base sheet / vapor retarder, and existing wood blocking down to precast concrete roof deck. Provide venting base sheet atop precast concrete roof deck, mechanically attached. Provide a two-ply asphalt bituminous vapor barrier atop the vented base sheet, adhered in asphalt bitumen. Provide a 1/16-inch per lineal foot tapered rigid insulation; with 3 1/2-inch start at the perimeter of the internal roof drain sump. Transition from tapered insulation to flat stock rigid insulation system once the 4-way tapered insulation system intersects with the south elevation’s low rise parapet. Provide an asphalt bituminous built-up roof system atop the cover board, adhered in asphalt bitumen. Provide an asphalt bituminous flood coat and aggregate surface. Provide new pre-finished aluminum sheet metal counterflashings and parapet coping.