Owens Corning (NYSE:OC) today announced that its Board of Directors has declared a quarterly cash dividend of $0.79 per common share. The dividend will be payable on November 5, 2026, to shareholders of record as of October 19, 2026.

Future dividend declarations will be made at the discretion of the Board of Directors and will be based on the company’s earnings, financial condition, cash requirements, future prospects, and other factors.

About Owens Corning

Owens Corning is a branded building products leader with three complementary market-leading businesses providing roofing, insulation, and doors primarily for residential markets in North America and Europe. The company operates with an integrated go-to-market strategy and a unique set of OC Advantages™ – including its iconic brand, unparalleled commercial strength, leading technology, and winning cost position – to help customers win and grow in the market. Owens Corning is committed to helping build better and achieve more through winning partnerships, leading performance, and engaging people. Founded in 1938 and headquartered in Toledo, Ohio, Owens Corning is listed on the New York Stock Exchange (NYSE:OC). For more information, visit www.owenscorning.com.

Owens Corning Company News / Owens Corning Investor Relations News

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Media Inquiries:

Megan James

419.348.0768

mediarelations@owenscorning.com

Investor Relations:

Darren Garvin

419.248.7747

investorrelations@owenscorning.com