Investment Increases Capacity for Owens Corning’s High-Performing Laminate Shingle Portfolio Including Premium Duration^® Series Shingles

Owens Corning (NYSE: OC), a residential and commercial building products leader, today announced an investment in shingle manufacturing capacity with the addition of a new facility in the southeastern United States. The strategic investment will expand the company’s Roofing manufacturing network, enhancing Owens Corning’s ability to meet the strong and growing demand for its shingles.

Gunner Smith, Roofing President, said, “We are focused on offering unmatched value to our customers by providing the premium quality building products and solutions they need to grow their businesses. Through this investment, and the many investments we have made over the last several years to enhance our manufacturing network, we are expanding our ability to meet the strong demand for Owens Corning shingles.”

The new southeast plant will operate a four-wide laminator capable of producing around six million squares per year and is expected to begin production in 2027. The additional capacity will be used to manufacture high-performing Owens Corning shingles including Duration^® series, which feature the company’s patented SureNail^® technology for strength and durability. The facility will operate leading technology including advanced automation and will create nearly 100 skilled manufacturing jobs. The plant location is expected to be announced later this year.

The addition of this new facility will accelerate the company’s shingle capacity expansion investments, which have included process improvements and automation to boost production across the network. This also includes the previously announced addition of laminate capabilities through a convertible line at the company’s Medina, Ohio facility which is expected to come online mid-year. When combined, these previous investments unlock capacity similar to the volume expected from the new southeastern plant.

The Owens Corning Roofing business operates 17 manufacturing facilities in the U.S.

Owens Corning will exhibit at The International Roofing Expo (IRE), the largest roofing and exteriors event in North America, from February 19-21, 2025, at the Henry B. González Convention Center in San Antonio, Texas. To connect with the Owens Corning team at IRE, please contact mediarelations@owenscorning.com.

To learn more about Owens Corning as a market leader in roofing shingles, underlayment, and components products as well as Owens Corning’s integrated Total Protection Roofing System^®, visit www.owenscorning.com/en-us/roofing.

About Owens Corning

Owens Corning is a residential and commercial building products leader committed to building a sustainable future through material innovation. Our four integrated businesses – Roofing, Insulation, Doors, and Composites – provide durable, sustainable, energy-efficient solutions that leverage our unique material science, manufacturing, and market knowledge to help our customers win and grow. We are global in scope, human in scale with more than 25,000 employees in 31 countries dedicated to generating value for our customers and shareholders and making a difference in the communities where we work and live. Founded in 1938 and based in Toledo, Ohio, USA, Owens Corning posted 2023 sales of $9.7 billion. For more information, visit www.owenscorning.com.

Forward-Looking Statements

In this press release, statements that are not reported financial results or other historical information are “forward looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements give current expectations or forecasts of future events. These statements can be identified by words such as “anticipate,” “continue,” “expect,” “intend,” “estimate,” and variations of negatives of such terms or variations thereof. Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements regarding the expected timing and production capacity of the new facility. All such forward-looking statements are based upon current plans, estimates, expectations and ambitions that are subject to risks, uncertainties, assumptions and other factors, many of which are beyond the control of Owens Corning, that could cause actual results to differ materially from the results projected in such forward-looking statements. These risks, uncertainties, assumptions and other factors include, without limitation: levels of residential and commercial or industrial construction activity; demand for our products; industry and economic conditions including, but not limited to, supply chain disruptions, recessionary conditions, inflationary pressures, interest rate and financial markets volatility, and the viability of banks and other financial institutions; availability and cost of energy and raw materials; competitive and pricing factors; relationships with key customers and customer concentration in certain areas; our ability to achieve expected synergies, cost reductions and/or productivity improvements; changes to tariff, trade or investment policies or laws; issues related to acquisitions, divestitures and joint ventures or expansions; our ability to achieve the objectives relating to the strategic review of our glass reinforcements business; climate change, weather conditions and storm activity; legislation and related regulations or interpretations, in the United States or elsewhere; domestic and international economic and political conditions, policies or other governmental actions, as well as war and civil disturbance; uninsured losses or major manufacturing disruptions, including those from natural disasters, catastrophes, pandemics, theft or sabotage; environmental, product-related or other legal and regulatory liabilities, proceedings or actions; research and development activities and intellectual property protection; issues involving implementation and protection of information technology systems; foreign exchange and commodity price fluctuations; our level of indebtedness; our liquidity and the availability and cost of credit; the level of fixed costs required to run our business; levels of goodwill or other indefinite-lived intangible assets; price volatility in certain wind energy markets in the U.S.; levels of global industrial production; loss of key employees and labor disputes or shortages; defined benefit plan funding obligations; and factors detailed from time to time in the company’s Securities and Exchange Commission filings. The information in this news release speaks as of February 11, 2025, and is subject to change. The company does not undertake any duty to update or revise forward-looking statements except as required by federal securities laws. Any distribution of this news release after that date is not intended and should not be construed as updating or confirming such information.

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