OTC Roofing and Sheet Metal Co. is a commercial/industrial roofing company providing services throughout the United States. We specialize in single-ply membrane and metal roof systems. Our services range from residential roof repairs to new construction industrial facilities. OTC Roofing and Sheet Metal Co. is certified with the industries top manufacturers, licensed for operation in multiple states and fully insured. "Optimizing Technical Concepts" is what we do and roofing is what we do best!