Johns Manville is a leading manufacturer of commercial roofing, insulation, and other building materials. Its roofing business includes single-ply membranes, built-up roofing, modified bitumen, roof insulation, adhesives, and related systems. The company traces its history to 1858 and is now part of Berkshire Hathaway, serving customers in more than 80 countries.
Phone 503-635-4619
Location: Lake Oswego, OR
Member Type: Manufacturer
