Johns Mansville English Customer Login Navigation WE BUILD ENVIRONMENTS Johns Manville, a Berkshire Hathaway company, manufactures residential and commercial insulation, commercial roofing, mechanical insulation and materials for other manufacturers' products and applications. INNOVATION SUSTAINABILITY OUR STORY FEATURED CONTENT SUSTAINABILITY Read JM's 2013 Sustainability Report. WHY INSULATE? FREEDOM TO ACHIEVE Learn what Freedom to Achieve means at JM. TOP © 2014 Johns Manville. A Berkshire Hathaway Company Privacy Policy Legal MSDS Search For Our Suppliers Partner Locator Johns Manville Customer Login INNOVATION CENTER SUSTAINABILITY OUR COMPANY CAREERS CONTACT US Home Insulation Solutions Why Insulate? Home Insulation Basics Home Insulation Projects Home Insulation Products Other Building Products Energy Incentives Building And Facilities Solutions Building Insulation Commercial Roofing Industrial Insulation HVAC Insulation Mechanical Insulation Wall Coverings Manufacturers' Solutions Fibers Nonwovens OEM Insulation Solutions