2021 Owens Corning Sustainability Report | Expanding Our Product Handprint | Product Innovation & Stewardship | 102 Evaluating Sustainability Impacts As part of our product stewardship review process, we evaluate the sustainability impacts of R&D projects, new products, and new processes. In 2021, we began using the Ecodesign Strategy Wheel to make these evaluations. Based on the Okala Ecodesign Strategy Wheel, this powerful brainstorming tool integrates stage-specific Design for Environment and product sustainability strategies into the innovation process, empowering product designers to consider ways to ensure product sustainability throughout our products’ life cycles. The Ecodesign Strategy Wheel is available to all project teams and is recommended for use throughout the product development process, beginning in the early design phase. It focuses on seven areas of the product’s life cycle, in which our people are encouraged to consider the following principles: 1. Reimagined Design We are encouraged to rethink how to provide the product’s service or function, anticipate technological changes and updates, and take inspiration from nature. 2. Reduced Material Impacts We should choose materials wisely, avoiding those that damage human or ecological health while opting for those that adhere to our sustainability goals. 3. Reduced Manufacturing Impact Products should be designed for quality control while minimizing energy use, water use, manufacturing waste, emissions, and the number of components and production steps. 4. Reduced Logistics Impact We should develop reusable packaging systems and source local materials and production, using lowest- impact transport, while reducing volume and weight of products and packaging. 5. Reduced Use-Phase Impact Products should be designed for carbon-neutral or renewable energy and encourage low-consumption user behavior while reducing toxic emissions and the consumption of energy, material, and water. 6. System Longevity Products should be designed for durability, easy maintenance and repair, reuse, and repurpose. 7. Optimized End of Life Products should be designed for fast disassembly and safe disposal, as well as use recyclable, nontoxic materials. Throughout 2021, our primary focus was on training groups and individuals on the Ecodesign Strategy Wheel, as well as integrating product stewardship into our Project Review Board process. Summary reports of product stewardship reviews are shared internally with leaders on a quarterly basis by the product stewardship leader. Throughout this tiered process, we measure and verify a product’s composition and development at key points, according to desired safety, performance, environmental, and sustainability attributes. In 2021, 88 projects were reviewed, for a total of over 1,600 such reviews since 1997 and over 1,300 since 2006, the year product stewardship reviews were made a mandatory part of our Business Code of Conduct. DESIGN FOR ENVIRONMENT INNOVATION STRATEGIES 1. Reimagined Design 2. Reduced Material Impacts 3. Reduced Manufacturing Impact 4. Reduced Logistics Impact 5. Reduced Use-Phase Impact 6. System Longevity 7. Optimized End of Life