Charles W. Stein (Chuck) has served as the President, Stone Business for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since February 2019. Before his current role, Mr. Stein was the President and CEO of Environmental StoneWorks since 2009. Prior to that, he worked for Owens Corning for 12 years where he held several senior management roles including: VP Marketing, Building Materials; President, Cultured Stone; and President, Services and Solutions. He has over 20 years of experience in the building materials industry. Mr. Stein started his career with General Electric, working 7 years in various sales and marketing roles. He earned a BS in Industrial Engineering from Rensselaer Polytechnic Institute and a Master of Business Administration from the University of Chicago.