Complete roof system replacement using premium Owens Corning materials, with extra waterproofing on the low-pitched sun room area and upgraded ventilation. Backed by the top-tier Platinum Protection Warranty. Scope of work: Full tear-off of existing layer, loose wood re-nailed, and haul-away Owens Corning TruDefinition Duration Limited Lifetime Dimensional Shingles in Harbor Blue Aluminum drip edge in white at all roof edges 2 courses of OC ice & water barrier at eaves, plus full coverage on the low-pitched sun room roof, valleys, and penetrations Mighty Dog U20 synthetic underlayment across the remaining deck OC starter shingles at all eaves and rakes for maximum wind warranty New aluminum step flashing, lead counter flashing at chimney, and new vent pipe boots OC VentSure ridge vent paired with 12 new aluminum rectangular soffit vents for balanced attic airflow OC ProEdge color-matched hip and ridge caps Full job site cleanup and magnetic sweep Warranty: 5-year Mighty Dog workmanship warranty Owens Corning Platinum Protection Warranty — lifetime materials, up to 50 years workmanship (100% covered first 25 years), fully transferable, 130 mph wind coverage, algae/moss/lichen protection Estimated investment: ~$14,200