James Hardie (ASX.JHX) upgraded its first-quarter fiscal 2027 guidance, expecting revenue of about USD 1.46 billion and adjusted EBITDA of about USD 400 million at the midpoint, both 10% above prior guidance. The beat is primarily driven by stronger sales of siding and trim. Shares rose 6% on the day.

Why it matters: We lift our fiscal 2027 adjusted EBITDA by 13% to USD 1.7 billion. The update implies better-than-expected market share gains, given a weak quarter for US residential housing. We now forecast low-teens volume growth in US fiber cement over the year, versus declines previously.

  • Siding and trim products drive the upgrade. This surprised us given US housing weakness, with new starts down 5% quarter on quarter but estimated sales growth of 11% for the segment over the same period. We see this as evidence of Hardie’s ability to grow above cycle.
  • Deck, rail and accessories, most of which came with the Azek acquisition, were only modestly above guidance. We view this segment as more discretionary, as it primarily focuses on outdoor decking. We forecast a more meaningful recovery from fiscal 2028.

The bottom line: We lift our fair value estimate by 5% to $45 (USD 31.50) per share for wide-moat James Hardie, reflecting near-term earnings upgrades and time value of money. Shares remain undervalued, trading in 4-star territory, despite a 40% rally since May 2026.

  • We think the market is focused on the price paid for Azek and execution risk on merger benefits and cost savings. While we are not as confident as management on the benefits, we think this is more than reflected in the current share price.
  • We see a reasonable runway for sales growth as the two companies’ products are bundled together. James Hardie has a much bigger distributor and installer network, thereby opening up new sales channels for Azek’s products. We forecast Azek to expand at a 5-year revenue CAGR of 9% from fiscal 2027.

James Hardie Lifts First-Quarter Guidance on Strong Siding and Trim Sales

James Hardie’s growth strategy includes marketing directly to homeowners, market share growth, and category expansion. We view this as rational and achievable, given past success. We estimate Hardie has about 90% market share in the fiber cement category in its main geography of North America, which contributes about 80% of group operating income. About 60% of North American EBIT is from repair and renovation, or R&R, and the remainder is from new house construction. We view the R&R market as less cyclical, with homes needing to be re-sided approximately every 40 years. According to the US Census Bureau, about half of all houses are 40 years or older. As such, we expect a steady pipeline of homes requiring siding replacement or repairs through the next decade.

A focus on marketing directly to homeowners sees James Hardie promote demand for its fiber cement-based products emphasizing product value, durability, and design. The strategy to increase penetration and grow market share involves taking share from competing siding products seen as less durable or higher maintenance. Indeed, over the five years to 2022, the Census Bureau reports that fiber cement siding on newly built houses gained 3% market share in the US compared with vinyl (down 2%), stucco (up 2%), brick (down 2%), and wood (down 1%). Fiber cement siding was the siding of choice in 22% of all new US house completions in 2024. We estimate that James Hardie fiber cement siding is on about 8% of existing US houses.

Another growth initiative is targeted architectural products to appeal to higher-end markets, penetrate regions with different housing styles, and compete with costlier siding materials such as stucco and brick. This involves leveraging research and development into new products to better fit markets and/or improve margins. The firm’s primary R&R market is the US Northeast and Midwest, where the climate and house framing style suit traditional overlap siding, but newer products are targeted at other regions, such as a stucco-look product that competes in the predominantly stucco-clad Southwest.

Bulls Say

  • James Hardie’s US segment continues to take market share from lower-cost alternative siding materials, such as vinyl and wood, despite higher prices and a downturn in residential spending.
  • Economic cycles aside, James Hardie’s wide economic moat provides a strong defense for long-term earnings and returns.
  • About one-fourth of all new house builds in the US use fiber cement siding, supporting the firm’s future repair and renovation pipeline as these homes will eventually need re-siding or repairs.

Bears Say

  • High interest rates are likely to damp demand for new housing.
  • US homebuyers could continue a shift toward multifamily units rather than single family, causing fiber cement siding demand to decline.
  • Despite two decades in the region, uptake of fiber cement in Europe has been slow and meeting midterm financial targets in this segment seems unlikely.

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