A full-system rebuild for a homeowner who wanted protection that wouldn't be tested every winter. Complete tear-off, then layered back with the full Owens Corning system — Grace ice and water barrier on every eave, valley, and penetration, Mighty Dog U20 synthetic underlayment, and TruDefinition Duration shingles in Onyx Black — all installed to Platinum Preferred Warranty standards. To stop ice dams before they start, we added a Mill Finish metal snow and ice belt along the back eaves, extending 24+ inches up from the edge with high-temperature ice and water shield underneath the interior wall line. We also upgraded the valleys to sheet metal and finished the ridgeline in copper — both built to outlast the shingles around them. A new Velux skylight rounded out the project, fully re-flashed with ice and water barrier integrated into the deck. The result: lifetime materials warranty, 130 mph wind coverage, premium metal details where it matters most — and an eave line engineered to keep ice from ever forming in the first place.