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Johns Manville, a Berkshire Hathaway company, was founded in 1858. Their ownership by Berkshire Hathaway, one of the most admired companies in the world and one of themes financially secure, allows JM to invest for the future. This enables JM to continue delivering the broadest range of insulation products in the industry and offering innovative solutions that meet your needs.


Johns Manville Formaldehyde-free Climate Pro blow-in loose-fill insulation is a premium alternative to cellulose. It's blown into attics, nonconforming spaces and hard-to-reach areas, like corners, edges and around framing. When it's applied to the recommended thickness and specifications, it improves energy efficiency. And unlike cellulose, it won't settle, decay or provide food for animals or microbes. It's effective for the life of the home.



  • Attics - can be install up to a R-70 over 1/2" ceiling drywall without exceeding ceiling weight limits.
  • Nonconforming spaces - insulation sprays out of the hose several feed. filling in large areas and small gaps quickly and completely.
  • Wall cavities - can be installed in walls using the Blow-In-Blanket System (BIBS)
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