2021 Owens Corning Sustainability Report | Expanding Our Product Handprint | Product Innovation & Stewardship | 106 Product Certifications and Disclosures Owens Corning uses third-party organizations to test and certify product attributes and to disclose their environmental, health, and safety impacts. We disclose core building products’ environmental impacts through the issuance of EPDs, in accordance with ISO standards. We also perform regular follow-up testing to maintain our certifications. Prior to being introduced in the marketplace, all product packaging and advertising is thoroughly reviewed by our technical services and legal departments, along with each business unit, to ensure compliance with all regulations and codes. In 2021, Owens Corning had no significant incidents of noncompliance with regulations or voluntary codes concerning the labeling, marketing, or advertising of our products and material services. In addition, Owens Corning had no incidents of noncompliance concerning the health and safety of our products in 2021. We have active product stewardship and product regulatory compliance programs designed to prevent product-related health and safety incidents. Environmental Transparency As part of our product sustainability goals, we are committed to evaluating our core products’ impacts throughout their life cycles — and to being fully transparent about our findings. We adopted a two-part methodology to calculate this cradle-to-grave environmental impact. ■ Conduct a life cycle assessment (LCA) according to the ISO 14040, 14044, and 14025, as well as ISO 21930 and EN 15804, followed by a third-party review and verification of appropriate product category rules. ■ Develop an environmental product declaration (EPD) from the LCA and implement continuous and measurable improvements related to those impacts. We remain committed to transparency about our products, from raw materials through production, use, and end-of-life, and will collaborate with our supply chain partners and customers to facilitate the adoption of a transparent value chain. Life Cycle Assessments (LCAs). LCAs are comprehensive measurements of the environmental footprint of a product at all stages of its life cycle, from the extraction of raw materials, through processing, manufacturing, and product use, and all the way to its eventual end of life through disposal or recycling. We have conducted full LCAs on 81% of our products, including shingles, fiberglass, mineral wool, FOAMGLAS ® cellular glass, and extruded polystyrene (XPS) foam insulation, as well as composite glass product offerings such as reinforcements, nonwoven mats, and technical fabrics. In addition, we have simplified or “screening” LCAs for 5% of our other products. By performing LCAs, we have identified many opportunities for improvement in our processes and products. We have also identified high-impact raw materials, enabling us to work with suppliers to reduce their footprint, which in turn helps us reduce ours. In 2021, we updated our LCAs on pipe insulation and roofing shingles. In 2021, we updated our LCA on Thermafiber ® insulation. We expanded and updated our LCAs covering composite glass products from 12 plants, focusing on rovings and fabrics. Owens Corning is an organizational member of the American Center for Life Cycle Assessments (ACLCA). Our LCA practitioners are active members of the ACLCA, and one of our LCA practitioners serves on its board of directors and co-chairs the industry committee. The ACLCA is a nonprofit organization providing education, awareness, advocacy, and communications to build capacity and knowledge of environmental LCAs. Environmental Product Declarations (EPDs). EPDs are a publicly available, third-party verified source for embodied carbon values. We have conducted LCAs and have issued EPDs on the following products: ■ EcoTouch ® Fiberglas™ insulation products. ■ Unbonded loosefill insulation. ■ FOAMULAR ® XPS insulation. ■ FOAMULAR ® NGX™ XPS insulation. ■ FOAMGLAS ® cellular glass insulation. ■ PAROC ® stone wool insulation. ■ PAROC ® Natura Lana stone wool insulation. ■ Thermafiber ® mineral wool insulation. ■ Owens Corning ® asphalt shingles. ■ WeatherPro ® Lumber Wrap. ■ Fiberglas™ pipe insulation. ■ 700 Series Fiberglas™ insulation. ■ QuietR ® duct board. ■ SOFTR ® duct wrap. In 2021, the ACLCA awarded their LCA Corporate Leadership Award to Cheryl Smith, product sustainability strategy leader at Owens Corning. Cheryl has been part of our LCA work for years, and she was integral to many of the early screening projects that helped establish the process.