Statement of Work Summary

This is a Statement of Work (SOW) for roof-mounted HVAC joint sealing and protection work at Building 51, Coast Guard Island, Base Alameda, California. The project addresses multiple water intrusions from roof penetrations in the HVAC ducting on roof-mounted HVAC systems. All work must comply with SMACNA Seal Class A Standards and be completed within 90 calendar days from award. The contractor must submit a project schedule within 15 business days of award and provide proof of similar completed projects with photos during proposal submission.

The scope encompasses eight primary tasks: project management with a designated single point of contact; visual and thermal inspection of HVAC units to identify repair requirements (including up to 100 square feet of spot repair from roof penetrations); joint surface preparation through cleaning of dust, grease, and old sealants; sealing application using UV-resistant, outdoor-rated, fiber-reinforced, water-based duct mastic approved to UL 181B-M standards (minimum 20 mm thickness, with fiberglass mesh for gaps exceeding ¼ inch); general ducting surface preparation and protection coating with rust-converting primer and white elastomeric mastic (20-30 mil minimum thickness); verification and quality control through visual inspection; and cleanup and disposal at a certified off-base facility. Additional requirements include compliance with USCG Safety and Environmental Health Manual standards, personnel security clearance with Real ID-compliant identification, vehicle registration and insurance, work hours of 7:00 AM to 4:00 PM Monday through Friday (excluding federal holidays), and provision of necessary signage and fencing. The Coast Guard will coordinate storage space and may provide potable water and electrical power at no cost.