Mattawoman Middle School Roof Replacement

Charles County Public Schools is requesting sealed bids on a roof replacement project at Mattawoman Middle School located at 10145 Berry Road, Waldorf, Maryland, under Bid Number MMSSRR 1-2627, with bids due March 25, 2026 at 1:00 P.M. local time at the Charles County Public Schools Annex 1, 2nd Floor Training Room #206 in La Plata. A mandatory pre-bid conference and site visit were held March 3, 2026 at 3:30 P.M. at the school; clarification questions were due March 17. A certified minimum 12% Minority Business Enterprise participation goal applies, with sub-goals of 0% African American and 0% woman-owned participation; bidders unable to meet the goal must document good faith efforts and submit a Certified MBE Utilization and Fair Solicitation Affidavit and MBE Participation Schedule.

The scope includes removal of the existing roof system down to the structural deck and installation of a new 0.80 mil PVC single-ply roof membrane with tapered R-30 insulation, mechanical and electrical coordination, RTU replacements, new aluminum lightning protection system, skylights, metal wall panels, parapet caps, flashing, and safety railings across approximately 28 to 33 roof areas. The project must comply with the 2018 International Building Code, NRCA guidelines, and ASHRAE specifications. Work is phased over two summers: June 19 through August 14, 2026, and June 20 through August 14, 2027, with final acceptance by September 27, 2027, totaling 475 calendar days. Work hours are limited to 6:00 A.M. to 3:00 P.M. on weekdays and weekends. The building remains occupied during construction. All mechanical work must be self-performed by the contractor and remain fully functional at the end of each scheduled period.

The project budget is estimated between $3 million and $4 million. The base bid includes a lump-sum price with $75,000 in allowances (owner coordination $10,000, testing and inspection $15,000, unforeseen conditions $50,000). Five alternate bids are requested covering RTU maintenance, existing ladder maintenance, portable classroom roofing, additional roof drains, and lightning protection. Unit prices are required for metal deck scraping, steel deck replacement, plywood deck replacement, and roof walkway pad installation. Bid security of 5% of the base bid, accompanied by a bonding company letter guaranteeing Payment and Performance Bonds, is required. Prevailing wage rates under Maryland state law apply. Bid prices must remain firm for 90 days. Pre-qualified bidders must obtain bid documents in digital format for $150.00 beginning February 17, 2026, and submit a completed Contractor's Pre-Qualification Questionnaire and financials to Susan Pond at spond@ccboe.com prior to 1:00 P.M. on March 3, 2026.