Johns Manville

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In operation for over 150 years, Johns Manville is a global manufacturer and marketer of building insulation, commercial roofing and roof insulation. Located in Berlin, N.J., the company provides fibers, nonwovens and other specialty products for commercial, industrial and residential applications. It caters to aerospace, automotive and transportation, air handling, appliance, filtration, waterproofing, pipe and equipment, building, flooring and interiors markets. Johns Manville, a part of Berkshire Hathaway Inc., operates approximately 41 manufacturing facilities in the North America, Europe and China.