Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial, and residential applications.
In business since 1858, the Denver-based company has annual sales of approximately $2 billion and holds leadership positions in all of the key markets that it serves. JM employs approximately 6,500 people and operates 41 manufacturing facilities in North America, Europe and China.