Cornerstone Building Brands Names Gunner Smith As CEO

Cary, NC - Cornerstone Building Brands, a manufacturer of exterior building products, has named Gunner Smith as its new Chief Executive Officer (CEO), effective August 11, 2025.

Smith was selected after the company’s Board of Directors conducted a comprehensive search to identify its next CEO. Most recently, he served as president of Roofing at Owens Corning, a position he held since 2018. In this role, he was responsible for roofing business in the United States and Canada. He joined Owens Corning in 2008.

“We are excited to have Gunner Smith joining Cornerstone Building Brands as our next CEO,” said John Krenicki, Chairman of the Board of Directors and Interim President and Chief Executive Officer, Cornerstone Building Brands. “He has tremendous depth of experience and expertise in the building products industry and an unwavering focus on customers. With a proven track record, Gunner has driven profitable growth and market share gains by achieving revenue growth and delivering value creation as a trusted partner to his customers, including many of our existing channel customers.”

Before joining Owens Corning, Smith was a National Sales Manager at PlyGem®, which is one of the two companies that formed Cornerstone Building Brands. Earlier in his career, he served in sales management roles for eight years at Elk Corporation.

He has been a board member of Howmet Aerospace since 2023, serving on the Audit and Finance Committees.

Smith received his bachelor’s degree in business administration from Mississippi State University and additional credentials in Executive Selling from the University of Chicago Booth School of Business.

About Cornerstone Building Brands

Cornerstone Building Brands manufactures exterior building products for residential and low-rise non-residential buildings in North America. For more information, visit www.cornerstonebuildingbrands.com.