Cornerstone Building Brands Completes Acquisition of Cascade Windows, Deepens Residential Product Offering

• Advances strategy to further grow in the large, deep windows and doors markets
• Expands manufacturing footprint in the rapidly growing west coast region

Cornerstone Building Brands, Inc. (NYSE: CNR) (the “Company”), the largest manufacturer of exterior building products in North America, announced today that it has completed its acquisition of Cascade Windows (“Cascade”) for a cash purchase price of approximately $245 million, subject to customary adjustments. Cascade is a leading independent manufacturer of energy-efficient vinyl windows and doors serving the residential new construction and repair and remodel markets. Headquartered in Spokane Valley, Washington, Cascade has approximately 800 employees at six manufacturing and three distribution locations across the West and Pacific Northwest.

"We are excited to welcome our Cascade teammates to the Cornerstone Building Brands family,” said James S. Metcalf, Chairman and Chief Executive Officer. “With Cascade, we have expanded our manufacturing presence across the rapidly growing west coast region and enhanced our tailored solutions offering for our customers.”

About Cornerstone Building Brands

Cornerstone Building Brands is the largest manufacturer of exterior building products for residential and low-rise non-residential buildings in North America. Headquartered in Cary, N.C., we serve residential and commercial customers across the new construction and repair and remodel markets. Our market leading portfolio of products spans vinyl windows, vinyl siding, stone veneer, insulated metal panels, metal roofing, metal wall systems and metal accessories. Cornerstone Building Brands’ broad, multichannel distribution platform and expansive national footprint includes more than 20,000 employees at manufacturing, distribution and office locations throughout North America. Corporate stewardship and environmental, social and governance (ESG) responsibility are deeply embedded in our culture, and we are committed to contributing positively to the communities where we live, work and play. For more information, visit us at www.cornerstonebuildingbrands.com

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