Remove existing roof; including the gravel, EPDM, flashing, and sheet metal. Haul off site for disposal. Required dumpsters and hauling are the responsibility of the Contractor. Review existing insulation. Existing insulation is assumed to be 2 layers of 1.8” R=20.4. Existing insulation to remain. If removal is required, remove and replace damaged/wet insulation per provided labor and material rate included in Form D – Cost Proposal. Mechanically fasten one new layer of 1.5” polyisocyanurate insulation with an R value of at least 8.5 over the existing insulation. Install required coverboard. Install new fully adhered 0.060 mil EPDM over new insulation. Flash all existing walls and penetrations. The existing mechanical rooftop equipment and piping will remain in place and be incorporated into the roofing system. Furnish and install new 24 ga. roof edge and counter flashing to replace existing. Furnish and install one overflow scupper to replace existing.
