Owens Corning sales slide 10% in Q1 amid building sector softness

Owens Corning (NYSE:OC) reported first-quarter 2026 financial results that reflected a cooling in the global building products market.

The Toledo, Ohio-based company posted net sales from continuing operations of $2.3 billion, representing a 10% decrease compared to the first quarter of 2025.

The decline comes as the construction sector continues to grapple with higher interest rates and a broader slowdown in residential and commercial project starts.

Despite the top-line contraction, the company demonstrated operational resilience by maintaining a net earnings margin of 2% from continuing operations and an adjusted EBITDA margin of 16%.

On a per-share basis, Owens Corning delivered diluted earnings of $0.47, while adjusted diluted EPS—which excludes certain one-time items—came in at $1.22.

The quarter’s cash flow reflected typical seasonal patterns and ongoing capital investments.

The company reported an operating cash outflow of $154 million and a free cash outflow of $387 million.

Despite the temporary cash burn, Owens Corning remained committed to its capital allocation strategy, returning $63 million to shareholders through a cash dividend during the first three months of the year.