We manufacture premium-quality insulation, commercial roofing and fibers and nonwovens for commercial, industrial and residential applications.

Our history | Our values

Roofing Systems

We are excited to announce the introduction of DensDeck? StormX? Prime Roof Board, a single ply system that offers better protection from the elements. In combination with JM TPO 60 mil over a steel deck, this cover board achieves a Very Severe Hail rating.
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Engineered Products

In 2018, our Engineered Products team started a partnership with ultra-runner Andrea Low to demonstrate the #JMextraMile. Now it's our employees turn to share their achievements. Visit the new JM Athletes page to discover what going the extra mile means to them.
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Insulation Systems

The Source is your hub for industry trends, insights, and continuing education in industrial, HVAC and mechanical insulation. Access specification information, professional development opportunities and more.
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JM Releases New E3 Pallet Technology
Leadership Changes at Johns Manville
The U.S. Environmental Protection Agency Honors JM with a 2020 Green Chemistry Challenge Award