8-B26002-600 E. 4th Street Renovation- SCOPE.docx

This is a scope of work document for the Wilmington Housing Authority (WHA) in Delaware related to the 600 E. 4th Street Renovation project. The project encompasses comprehensive roof replacement work across two distinct roof sections: Roofs 01-08 and Roofs 09-12. For Roofs 01-08, the work involves removal of existing granular surfaced modified bitumen roofing materials down to the lightweight insulating concrete (LWIC) slab, repair and patching of the LWIC where required, proper removal and disposal of any asbestos-containing materials identified during testing, and installation of a replacement insulated modified bitumen roofing system including vapor barriers, insulation, tapered insulation crickets where applicable, cover boards, and multiple-ply modified bitumen roofing with flashings. For Roofs 09-12, the scope includes removal of gravel surfaced built-up membranes, roofing insulation, and flashings down to the structural metal deck, followed by installation of a replacement insulated modified bitumen roofing system with deck board, vapor barrier, insulation, tapered insulation crickets, cover boards, and multiple-ply modified bitumen roofing with flashings. Additional work includes removal and replacement of all sheet metal flashing, trim, coping, through-wall scuppers, roof drains, and disconnection, removal, reinstallation, and reconnection of existing rooftop mechanical units on replacement curbs and rails to achieve a minimum 12-inch high base flashing. The procurement was posted on August 18, 2025, with proposals due by September 25, 2025, providing approximately five weeks for bid preparation.

The solicitation seeks qualified, licensed, and insured vendors with demonstrated expertise in complex roofing systems, asbestos management, and educational or institutional facility infrastructure modifications. All work shall comply with applicable building codes. While specific budget ranges and set-aside designations are not detailed in the provided scope of work document, the comprehensive nature of the project involving multiple roof sections, hazardous material handling, extensive system replacements, and mechanical unit repositioning indicates a significant capital investment likely in the mid-to-high six-figure range. Detailed project drawings are referenced and available for review via the provided Dropbox link to support bid preparation and cost estimation.