2021 Owens Corning Sustainability Report | Our Approach | UN SDG Alignment | 47 Purchasing electricity only from renewable sources is a key part of our effort to halve our greenhouse gas emissions. We will also work to reduce the emissions from our processes and improve energy efficiency. In 2021, approximately 51% of our electricity came from renewable sources, which represents continued progress toward our goal in a year of increased production and corresponding electricity consumption. Overall, our reduction can be attributed to the conservation measures we have taken to significantly reduce energy consumption and improve plant efficiency. Since 2006, Owens Corning has implemented over 1,250 energy-use efficiency and reduction projects in our facilities around the world. The result has been a reduction in estimated usage of more than 1.45 million MWh per year. Additionally, we offer an extensive portfolio of products that can help our customers save energy and avoid emissions. In 2021, 63% of our revenue came from this category of products. SDG Target 7.A | By 2030, enhance international cooperation to facilitate access to clean energy research and technology, including renewable energy, energy efficiency and advanced and cleaner fossil fuel technology, and promote investment in energy infrastructure and clean energy technology. In 2021, approximately 51% of our electricity across our portfolio globally came from renewable sources, such as wind, hydro, solar, and geothermal. Decent Work and Economic Growth Our vision for a sustainable enterprise includes attention to environmental and social progress, human rights, and an employee experience that leads employees to want to recommend the company to a friend. SDG Target 8.2 | Achieve higher levels of economic productivity through diversification, technological upgrading and innovation, including through a focus on high-value added and labor-intensive sectors. In 2021, Owens Corning launched PINK Next Gen™ Fiberglas™ insulation, which features a number of innovations that increase our overall product handprint. In addition to setting a new industry standard for recycled content, PINK Next Gen™ Fiberglas™ insulation is certified made with 100% renewable electricity through the use of power purchase agreements and has earned Underwriter Laboratories GREENGUARD ® certification for low volatile organic compounds. The trade association NAIMA estimates that insulation saves 12 times the energy required to manufacture it within the first year of its use, and PINK Next Gen™ Fiberglas™ insulation offers even greater sustainability advantages. It is easy to cut and install and recovers instantly, making the process up to 23% faster. The FOAMULAR ® NGX™ (Next Generation Extruded) insulation line features a proprietary blowing agent that is optimized to demonstrate a greater than 80% reduction in embodied carbon, compared to legacy FOAMULAR ® insulation products. With this advancement, Owens Corning offers customers another way to meet local regulations — and their own sustainability goals — with no diminishment in product performance. The PAROC ® Natura line of stone wool insulation uses low-carbon melting technology, green electricity, recycled waste materials, and new technologies to reduce the amount of virgin raw material used and offer a product with very low CO 2 emissions. The remaining emissions are compensated by reducing CO 2 emissions through the purchase of offsets in a Verified Emissions Reduction Scheme. The new product line, which is certified as carbon-neutral by a third- party, offers fire-safe, durable insulation that does not decay when wet. PAROC ® Natura became available in Finland, Norway, and Sweden at the beginning of 2021. SDG Target 8.4 | Improve progressively, through 2030, global resource efficiency in consumption and production and endeavor to decouple economic growth from environmental degradation, in accordance with the 10-year framework of programs on sustainable consumption and production, with developed countries taking the lead. Owens Corning is taking every opportunity to transform our operations to a circular economy model, one in which virgin raw materials, waste, energy and emissions are minimized through intelligent design, renewable and recycled input, energy- efficient production, and recycling of products at the end their life cycles. In doing so, we are better positioned to achieve more sustainable economic growth — ensuring that we have a net-positive impact by reducing our environmental footprint and increasing our product handprint. By 2030, Owens Corning’s goal is to establish viable circular economy business models involving our materials and how they are used by collaborating up and down the supply chain, with customers, suppliers, communities, academics, policy makers, government entities, and other organizations. We recognize the need to increase the recycled content and decrease the virgin raw materials used in our products. We plan to develop technical solutions and practical business models for our product materials and packaging to continuously be used for beneficial purposes even after they are no longer used for the original purpose. We are calling on our partners throughout our value chain to help us in our transition to a circular economy model and meet our 2030 science-based Scope 3 goal to reduce greenhouse gas emissions. We will rely on the companies with which we do business to help develop strategies that will limit the extraction of virgin raw materials and seek out new opportunities to keep products that are at the end of their life out of the landfill and useful within the global economy.