Johns Manville’s Corbond® oc SPF Achieves New Code Compliance

Johns Manville (JM), a global building products manufacturer and a Berkshire Hathaway company, today announced that JM Corbond® oc SPF has met requirements for application without a prescriptive ignition barrier in sealed unoccupied attics for commercial and residential projects, increasing the versatility of JM’s complete line of spray foam insulation products.

By meeting requirements for application without an ignition barrier in attics, Johns Manville’s easily applied and high performing low density open-cell spray foam can now be installed more cost effectively than ever before. The new approval eliminates the time and money required to apply a separate fire protective coating. The achievement is detailed in a code compliant research report, CCRR-1079, from Intertek.

For further detail on the advancement and to view the full code report from Intertek, please visit

“We are committed to providing the highest quality service and products to our customers, which is why we are constantly improving upon our broad range of insulation solutions,” said Bob Wamboldt, senior vice president and general manager of Insulation Systems at Johns Manville. “By optimizing JM Corbond oc SPF to achieve new code compliance, we are helping our customers achieve performance goals in less time and with fewer materials.”

JM Corbond oc SPF is a two-component, low-density, nonstructural insulation system designed for commercial, residential and industrial applications. Its low-density nature allows for tremendous yield, while still providing important air isolation, versatile R-values, excellent acoustical performance, and critical air sealing. This results in better air quality and increased comfort for building occupants. JM is proud to offer a broad family of high-performance, high-yield spray polyurethane foam solutions that can stand alone or be used in hybrid systems to meet a wide array of performance requirements and project budgets.

About Johns Manville

Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors and wind energy. In business since 1858, the Denver-based company has annual sales of approximately $2.6 billion and holds leadership positions in many of the key markets that it serves. JM employs approximately 7,000 people and operates 44 manufacturing facilities in North America, Europe and China. Additional information can be found at

Linhart PR for Johns Manville Kelly Nash, 303-515-2404