Sheet Metal & Air Conditioning Contractors’ National Association



Johns Manville

Johns Manville and SMACNA

Johns Manville is a leading manufacturer and marketer of premium-quality insulation and commercial roofing, along with glass fibers and nonwovens for commercial, industrial and residential applications. Our history goes back to 1858, when the H.W. Johns Manufacturing Company began operations out of a tenement building in New York City.

Today, our products are used in a wide variety of industries including building products, aerospace, automotive and transportation, filtration, commercial interiors, waterproofing and wind energy. A proud member of the Berkshire Hathaway family of companies, we serve customers in more than 80 countries around the globe.

Latest News

July 27, 2020

JM'S New R-12 Duct Insulation Portfolio

In 2015, the International Energy Conservation Code (IECC) made a new change regarding the thermal resistance requirements for duct insulations in unconditioned spaces.

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April 27, 2020

Work from Home, Learn from Home

Visit the Source is where we house the latest Insulation Intel on industry trends, insights, and continuing education opportunities.

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March 24, 2020

The True Impact of Duct Liner Density

As an HVAC insulation manufacturer, duct liner density is one of those topics that comes up for us on a regular basis. Every month, we receive a variety of questions around the impact of duct liner density pertaining to insulating performance, and reasonably so.

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February 06, 2020

Premier Partner Video: Johns Manville

Brennan Hall, Senior HVAC Product Manager at Johns Manville, on how the current line of JM products can benefit SMACNA Members.

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January 23, 2020

Mark Terzigni to Participate in Johns Manville Panel at AHR

SMACNA Premier Partner Johns Manville will be hosting a panel discussion of current topics and trends in the HVAC industry at the 2020 AHR Expo in Orlando, Florida on Monday, February 3rd.

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JM Announces New CEO and New President of Insulation Systems

Bob Wamboldt will become President and CEO on Sept. 1, 2020, and Greg Clarke will become President of the company’s Insulation Systems business on the same day.

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Johns Manville Recognized for Excellence in Community Service

Johns Manville (JM) was recently recognized for Excellence in Community Service by The Communitas Awards for the company’s first Global Community Day last fall that helped local charities and promoted employee volunteerism.

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