attachment-4-bid-3053-26.xlsx

This is a bid calculation spreadsheet for roofing replacement services at Murphy Dam, prepared by the New Hampshire Department of Administrative Services, Division of Procurement and Support Services. The project involves comprehensive roof replacement for the Murphy Dam Tender Residence, a historic two-floor home and two-car garage originally constructed in the mid-1800s, located in Pittsburg, Coos County. The spreadsheet documents the calculation of total roofing surface area, accounting for the 12:12 pitch (45-degree angle) of the roof system using a slope adjustment factor of 1.414 to convert the base footprint measurements to actual surface area. The calculation yields a total estimated roofing area of approximately 3,763 square feet, rounded to 3,800 square feet for project planning purposes. The bid was distributed on June 23, 2025, with a closing date of July 16, 2025, at 9:00 AM Eastern Time. The contract term is set for approximately one year from August 27, 2025, with potential two-year extensions available.

The project scope includes complete removal of existing asphalt and metal roofing, potential repair or replacement of roof decking, installation of new ice and water shield underlayment, asphalt roof shingles, chimney repointing, new chimney cap, and gutter and downspout replacement, along with mold remediation and assessment services. Contractors must provide all labor, materials, tools, and permits while ensuring compliance with the 2018 International Building Code standards and OSHA, EPA, and New Hampshire Department of Health guidelines. The solicitation does not explicitly indicate specific set-aside designations for disadvantaged enterprises, and no incumbent vendor is identified. The bid structure includes a 15% contingency in the pricing. Contractors must be certified for mold assessment and remediation, demonstrate comprehensive qualifications including proof of insurance and workers' compensation coverage, and provide environmental compliance certifications. Materials must have low volatile organic compound (VOC) content, and all work must include warranties for both workmanship and materials.