689 Mass Ave Roofing Replacement - Filed Sub Bids

Solicitation COC-CIFB-FY27-31196 is an invitation for bids issued by the City of Cambridge, Massachusetts, for a roof replacement and minor envelope repairs project located at 689 Mass Ave. With an estimated project value of 1,400,000 dollars, the scope of work includes the installation of EPDM membrane roofing, flashing, thermal insulation, and air barriers, as well as waterproofing, damp-proofing, caulking, and plumbing work for storm drainage. Additional requirements involve masonry repairs, the installation of OSHA-compliant ladder safety and fall arrest systems, and selective demolition. The contract term is 11 months, commencing within seven days of a written Notice to Proceed. The procurement follows a sealed bid process in accordance with M.G.L. c. 149, requiring general bids by November 5, 2026, and filed sub-bids by October 8, 2026. Bidders must provide a bid deposit of at least five percent of the bid value and furnish performance and payment bonds upon award. Mandatory certifications include DCAMM eligibility in General Building Construction, OSHA 10-hour safety training for all workers, and compliance with the Cambridge Responsible Employer Plan and Minority Business Enterprise Program. Technical compliance requires materials to be delivered in original packaging and roofing systems to be UL-Classified or FM-approved. Quality assurance will be managed through independent testing agencies and infrared camera surveys to ensure the continuity of insulation and air barriers.