Robert P. Kornahrens

Advanced Roofing, Inc. provides roofing services. Its services include re-roofing, roof repair, roof maintenance, solar roofing, emergency repair, design build, roof management, roof restoration, waterproofing, air conditioning, concrete restoration, cranes, lightning protection and sheet metal. The company was founded by Robert P. Kornahrens in 1983 and is headquartered in Fort Lauderdale, FL.

Advanced Green Technologies, Inc. operates as a solar contractor. It specializes in the design, procurement, and construction (EPC) of commercial, industrial, and utility-scale solar energy projects for clients throughout North America and the Caribbean. The company was founded by Robert P. Kornahrens in 2007 and is headquartered in Fort Lauderdale, FL.

National Roofing Contractors Association operates as a nonprofit association that represents all segments of the roofing industry, including contractors, manufacturers, distributors, architects, consultants, engineers, building owners and county, city and state government agencies. The company was founded in 1886 and is headquartered in Rosemont, IL.