Owens Corning 10-Q Summary: Q1 2026
Business Context and Reporting Period
This report covers the quarterly period ended March 31, 2026. Owens Corning operates three reportable segments: Roofing, Insulation, and Doors. The quarter was significantly impacted by the classification of the Glass Reinforcements (GR) business as discontinued operations following a strategic divestiture agreement. The sale of the GR business closed on April 30, 2026, shortly after the reporting period.
Key Financial Metrics
| Metric | Q1 2026 | Q1 2025 |
|---|---|---|
| Net Sales (Continuing) | $2,265 million | $2,530 million |
| Gross Margin | $510 million (23%) | $725 million (29%) |
| Operating Income | $120 million | $407 million |
| Net Earnings (Continuing Ops) | $39 million | $255 million |
| Net Loss (Total) | $(104) million | $(93) million |
| Adjusted EBITDA (Continuing) | $369 million | $565 million |
| Cash and Equivalents | $272 million | $400 million |
| Total Debt | $5.5 billion | N/A |
| Operating Cash Flow | $(154) million (Used) | $(49) million (Used) |
Material Changes vs. Prior Period
- Revenue Decline: Net sales decreased $265 million (10.5%) year-over-year, driven primarily by lower volumes across all segments and lower selling prices.
- Profitability Compression: Operating income dropped $287 million. Gross margin declined due to lower volumes, input cost inflation, and production downtime.
- Discontinued Operations Impact: A pre-tax loss of $182 million was recorded in Q1 2026 related to the GR divestiture amendment, which reduced the purchase price by $110 million. This resulted in a net loss from discontinued operations of $143 million.
- Restructuring Costs: Total restructuring costs increased to $46 million in Q1 2026 compared to $3 million in Q1 2025, primarily due to severance and exit costs.
- Paroc Recall: An additional $32 million charge was recorded for the Paroc marine insulation recall liability.
Guidance, Outlook, and Risks
- Segment Outlook:
- Roofing: Non-discretionary replacement activity expected to remain solid; non-residential markets expected to be stable.
- Insulation: North American new residential construction expected to remain challenged due to affordability issues; non-residential markets expected to be stable.
- Doors: New residential construction and discretionary remodeling activity expected to remain soft in North America.
- Corporate Expenses: General corporate expenses for 2026 are projected to be between $245 million and $255 million.
- Tariff Risks: The company faces ongoing tariff and trade uncertainties. However, a U.S. Supreme Court decision may allow for a refund of approximately $50 million in previously paid tariffs; no asset has been recorded yet.
- Liquidity: The company maintains a $1.5 billion Senior Revolving Credit Facility (fully available) and a $1.5 billion Commercial Paper program ($380 million outstanding). Management expects ample liquidity for the next 12 months.
Investor Verification Checklist
- GR Divestiture Finality: Verify the final closing terms of the Glass Reinforcements sale and confirm no further material charges are expected post-April 30, 2026.
- Paroc Recall Exposure: Monitor the status of the Paroc marine recall and the potential costs associated with the review of ventilation duct and steel beam insulation products, which are currently unquantified.
- Tariff Refund Realization: Track the progress of the $50 million potential tariff refund claim following the Supreme Court decision.
- Volume Trends: Assess whether the 14% volume decline in Roofing and 12% decline in Doors stabilizes in Q2 2026 given the challenging housing market outlook.
- Restructuring Execution: Review the timeline for realizing synergies from the Masonite acquisition and the completion of facility closures (e.g., Prineville, Greenville, Aldergrove).