Keywords: TPO, EPDM, Flat Roof, Low Slope, Edge, Excel, Bluebeam, Procore, Roofing, Industrial, Maintenance, Service, Shingle, Single-ply, waterproofing Job Title: Commercial Roofing Estimator, Estimator Location: Fort Mill, SC (on site) Compensation: $85-100,000 Requirements: (minimum) 2+ years commercial roofing estimation.