Owens Corning Q2 2026 Earnings: Flat Sales Came With Lower Margins

Owens Corning's Q2 2026 earnings showed net sales from continuing operations of $2.756 billion, up less than 1% year over year, while diluted EPS fell 2% to $3.84. Adjusted EBITDA declined 6% to $660 million and margin narrowed to 24% from 26%, as higher cost of sales outweighed modest revenue growth. Operating cash flow improved 22% to $398 million and free cash flow rose 54% to $199 million. Roofing and Insulation sales grew, but EBITDA declined across Roofing, Insulation, and Doors, while Q3 guidance calls for $2.6-$2.7 billion of revenue.