Johns Manville

Johns Manville, a Berkshire Hathaway company, is a leading manufacturer and marketer of premium-quality building insulation, commercial roofing, roof insulation, and specialty products for commercial, industrial, and residential applications.

JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors, and wind energy.

JM’s product offerings include: Formaldehyde-free™ fiber glass building insulation, commercial roofing membranes and roof insulations, filtration media, and mats and einforcements.

Our company is based in Denver, Colo., where you will also find our global research and development facilities. With over 7,000 employees and 43 manufacturing and sales locations across North America, Europe and China, we serve customers in over 80 countries. Our employees are united across business functions and work globally with other JM employees.