The work scope includes removal of the existing roof membrane down to the roof deck and replacement with new insulation and a PVC roofing system at Roofs 1-4, and replacement of Roof 5 with flat seam zinccoated copper roofing. At the transit shutter hatches, the existing east hatch membrane and coatings shall be removed and replaced with new flat seam zinc-coated copper roofing, with the shutter remaining fixed and non-operable, while a new west operable transit shutter shall be created per the drawings. New zinccoated copper flat seam roofing will also be installed on the transit shutters, upper Roof 5, and dome flashing. Lightning protection shall be removed, restored, or replaced as noted, with continuous protection maintained for the duration of the project, and a new lightning protection system installed at completion. The existing perimeter gutter, downspouts, collection box, and security bracket system shall be removed and replaced with new components in-kind to match the existing profile, gauge, dimension, and material...
