Owens Corning (OC): Evaluating Valuation After Announcing Advanced Shingle Plant Expansion in Alabama

Simply Wall St

If you’ve been following Owens Corning (OC), you probably noticed the big announcement: plans are underway for a cutting-edge shingle plant in Prattville, Alabama. This isn’t just another facility. With advanced automation and a major boost in manufacturing capabilities, the new plant is set to ramp up production for the company’s sought-after roofing products. Management’s move highlights a focus on capturing growth opportunities in the nation’s hottest shingle market and aims to deliver more value to both customers and shareholders.

The news comes after a stretch of stock price declines over the last month, though Owens Corning has seen positive momentum building over the past three months. The company’s longer-term returns remain solid, bolstered by consistent shareholder payouts and moves like this expansion. Of course, earnings are expected to be down year-on-year, which may explain some of the caution among investors, but the business continues to find ways to invest strategically, even as broader sentiment toward building materials stocks remains mixed.

So, does this expansion make Owens Corning a smart addition for your portfolio right now, or is all that future growth already factored into the current share price?

Most Popular Narrative: 17.3% Undervalued

The most widely followed narrative currently views Owens Corning’s stock as undervalued, projecting a substantial gap between its current price and fair value.

Robust, forward investment in capacity expansion and technology, including new shingle and nonwovens lines, positions Owens Corning to capture increasing demand for energy-efficient, resilient building materials. This supports future revenue growth as energy codes tighten and consumer preferences shift towards sustainable construction.

Curious why analysts are calling this stock a bargain? The secret lies in bold profit targets and a future earnings multiple that is turning heads. Want to know the assumptions powering this narrative and whether Owens Corning can actually live up to those growth projections? The full story behind this fair value might surprise you.

Result: Fair Value of $175.93 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, persistent weakness in North American housing and rising competition could challenge Owens Corning’s growth path and put pressure on its premium pricing strategy.

Find out about the key risks to this Owens Corning narrative.

Another View: SWS DCF Model Perspective

While the first analysis points to sizable upside, our SWS DCF model comes to a similar undervalued conclusion. It reaches this conclusion by projecting the company’s cash flows into the future. How could these two valuation methods agree, even though they take different approaches?

Look into how the SWS DCF model arrives at its fair value.

OC Discounted Cash Flow as at Sep 2025

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Owens Corning for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover undervalued stocks based on their cash flows. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Build Your Own Owens Corning Narrative

If you see things differently or want to dig deeper into the numbers, you can craft a narrative that reflects your own perspective in just minutes. Do it your way

A great starting point for your Owens Corning research is our analysis highlighting 5 key rewards and 3 important warning signs that could impact your investment decision.

Looking for More Winning Investment Angles?

Opportunities do not wait. Give yourself the edge by using our screeners to uncover unique trends and stocks that others are missing. These tailored ideas could lead you to your next breakout winner.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Valuation is complex, but we're here to simplify it.

Discover if Owens Corning might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.

Access Free Analysis

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com