Complete removal and vacuuming of all loose rock ballast from the existing roof surface. A closed-cell spray foam roofing system will then be installed directly over the existing torch-down roofing material, creating a seamless, insulated, and watertight surface. Once the foam has cured, a high-performance silicone roof coating will be applied to protect the system from UV exposure, improve weather resistance, and provide a durable, long-lasting waterproof roofing solution.