We completed a comprehensive roof replacement for this multi-unit residential complex in St. Louis. The process began with a full tear-off of the weathered asphalt shingles, followed by a detailed inspection of the roof deck. We identified and replaced several sections of compromised plywood sheathing and structural decking to ensure a stable and secure foundation for the new roofing system. Our team installed high-performance synthetic underlayment, including TopShield TS20 and RhinoRoof U20, to provide superior moisture protection across the multiple intersecting roof planes. We then applied new architectural asphalt shingles along with new ridge vents, pipe flashings, and ventilation components. This complete system upgrade resolved existing leak issues and significantly enhanced the long-term durability and weather resistance of the entire property.