Mr. Chambers is Board Chair, President, and Chief Executive Officer of the Company. He was appointed Chief Executive Officer in 2019 and elected Board Chair in 2020. He previously served in several senior leadership roles at the Company, including President and Chief Operating Officer from 2018 to 2019, President of the Roofing business from 2014 to 2018, Vice President and General Manager of Roofing from 2013 to 2014, and Vice President and General Manager of the Composites business from 2011 to 2013. In total, Mr. Chambers has over 20 years of global business and leadership experience with the Company. He also previously held several commercial and operational roles at Saint-Gobain, Honeywell, and BOC Gases. Since February 2022, Mr. Chambers has served on the Board of Directors of Lincoln Electric Holdings, Inc., a world leader of engineering, design, and manufacturing of advanced arc welding solutions, automated joining, assembly and cutting systems, plasma and oxy-fuel cutting equipment, and is a member of its Audit and Finance Committees. His experience serving on a publicly traded company board provides him with additional global business perspective and further deepens his leadership and strategic skills. Mr. Chambers also serves on the board of directors for the National Association of Manufacturers and is on the executive committees of the Ohio Business Roundtable and the Policy Advisory Board of the Joint Center for Housing Studies of Harvard University. He served as a member of the Business Roundtable until December 2025. Key Qualifications, Experience, Skills, and Expertise Contributed to the Board Mr. Chambers brings to the Board a thorough understanding and extensive knowledge of the Company s people, products, and markets worldwide gained through his key leadership positions in the Company. In these roles, especially as the current Chief Executive Officer and Board Chair of the Company, he plays an integral role in developing the Company s strategies, which have helped to provide the foundation for the current direction of the Company. Mr. Chambers possesses a significant understanding of, and experience with, complex operations as well as company-specific customer expertise that drive the Company toward achievement of its expansion and growth goals. This industry-specific experience and breadth of knowledge enable him to provide the Board with a unique, invaluable perspective. In addition, Mr. Chambers extraordinary leadership qualities as well as the ability to identify and develop those qualities in others facilitate the Company s strategic growth execution.