Johns Manville (JM), a Berkshire Hathaway company, is a leading manufacturer and marketer of premium-quality insulation, commercial roofing, as well as fibers and nonwovens for commercial, industrial and residential applications.
JM’s history traces back to 1858 as the H.W. Johns Manufacturing Company, a roofing business originally operated out of a New York City tenement building by Henry...
; Established in 1858, Johns Manville, also known as JM, is one of the leading manufacturers and marketers of building insulation, commercial roofing, roof insulation and specialty products for industrial and residential applications. The company serves various clients in the aerospace, automotive and transportation, air handling, appliance, pipe and equipment, filtration, waterproofing,...