Roof Silicone Seal Coating Project

The San Luis & Delta-Mendota Water Authority (SLDMWA) is requesting informal bids on a roof silicone seal coating project at its Tracy Admin Office in Byron, California, with bids due October 21, 2026 at 2:00 p.m. Contractors must hold a valid California Class A or C-39 license and be registered with the California Department of Industrial Relations; all subcontractors must also be registered and listed in the bid submission.

The scope covers reseal and repair of two roofs: the Civil Maintenance Building (approximately 11,000 square feet) and the Paint Shop (approximately 7,728 square feet). Work includes removal and disposal of existing debris, pressure washing, application of clear acrylic primer, installation of PBR Gel Closures under vents, sealing of fasteners and gutter hangers with ASC-7 Acrylic Mastic (or equivalent), three-course seams with polyester rolls and acrylic mastic, and ASC Silicone White roof coating applied at three gallons per 100 square feet. The project is subject to California prevailing wage requirements under Labor Code Section 1771, with certified payroll reporting and Department of Industrial Relations monitoring mandatory.

The estimated construction cost ranges from $100,000 to $150,000, with a not-to-exceed amount of $200,000. The contract term is 30 calendar days from notice to proceed, with work hours 7:00 a.m. to 4:00 p.m. Monday through Friday. A one-year guarantee from SLDMWA acceptance is required, and liquidated damages of $1,000 per calendar day apply for delays beyond the completion date.

Bid security equal to ten percent of the total bid amount is required for bids exceeding $25,000. If awarded, the contractor must provide performance and payment bonds equal to 100 percent of the contract price and maintain general liability insurance of not less than $1,000,000 per occurrence. Questions are due October 7, 2026 at 5:00 p.m., with responses issued by October 14. An optional pre-bid conference and site walk-through will occur September 30, 2026 at 10:00 a.m. Notice of intent to award is anticipated October 22, 2026, with contract execution by November 9, 2026.