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.


We Build Comfort
Building Solutions for You and Your Customers

Building product solutions for you and your customers

We Build Partnerships

Partnership and performance for your applications

  • Innovation


    Whether patenting exciting new technologies or developing tailor-made products, our engineers make the impossible possible.

    Take a closer look into the role of innovation at JM.

  • Sustainability


    We’re committed to achieving and maintaining sustainable practices through a focus on innovation, productivity and leadership.

    Learn more about our commitment to sustainability.

  • Our Story

    Our Story

    Our name has become synonymous with innovation and quality in the building and specialty materials industry.

    Explore who we are and where we’ve been–and get the latest news on our most recent innovations.