Specifications include, but are not limited to: i. Remove existing coal tar roofing system and insulation to the structural deck and remove from site. ii. Furnish and install 2 layers of 2.5” 20 PSI polyisocyanurate insulation totaling an R value of 30 per manufacturer requirements and guidelines. iii. Furnish and install full tapered system at ¼” per foot slope using type IV asphalt per manufacturer requirements and guidelines. iv. Furnish and install one layer of ½” Densdeck (or equal) primed cover board using type IV asphalt per manufacturer requirements and guidelines. Substitutions allowed if deemed by owner to be equivalent. Bidder must submit substitution data for evaluation and approval prior to bid opening. v. Furnish and install one layer of base ply SBS modified membrane roofing system. vi. Furnish and install one layer of SBS ultrawhite granulated capsheet modified membrane roofing system. vii. Furnish and install all base flashings and accessories related to the modified roof system. viii. Furnish and install new gravel guard, edge metal and counter flashings. ix. Furnish and install all roof-related sheet metal.