Specifications include, but are not limited to: 1. Remove and dispose of existing roof assembly and all associated components down to the structural deck, including but not limited to: tar & gravel roof membrane, insulation, associated sheet metal flashings, and roof drains. 2. Remove and dispose of existing unit skylights and associated components. 3. Remove and dispose of existing roof hatch and associated components. 4. Install new 2-ply SBS modified bitumen roof system and all associated components, including but not limited to: vapor retarder, insulation, coverboard, roof membrane system, associated sheet metal flashings, and roof drains. 5. Install new acrylic unit skylights and associated components. 6. Install new roof hatch and associated components. 7. Install new exterior access ladders.