James Hardie Is Growing at the Bottom of the Housing Cycle, and Managers Are Asking What Happens When It Turns

AZEK synergies, market share gains and a new growth algorithm that assumes no housing recovery have reshaped the thesis, even as mortgage rates above 7 per cent keep the cycle in check.

30 Sep 2026 · 4 min read

Growth without a housing recovery

The investment case for James Hardie has quietly changed shape. For years, owning the fibre cement maker meant betting on the US housing cycle. After a September investor day in New York, the first since the AZEK acquisition in July 2025, fund managers are increasingly describing a business that can grow on its own levers. Selector Funds Management, which attended, noted management's new organic growth target of 4 to 7 per cent above market and adjusted EBITDA margins of more than 35 per cent, and said “management highlighted that none of these drivers assume a housing recovery.”

Management highlighted that none of these drivers assume a housing recovery.

— Selector Funds Management, Monthly Report, September 2026

Wilson Asset Management put it even more directly in August, saying the James Hardie story right now is “really not linked to the housing cycle story.” The manager described it as a quality business with its own earnings drivers, likely to benefit as markets broaden beyond the crowded AI trade, and in September called it a core holding in its WAM Leaders portfolio.

The levers management is pulling

Hyperion Asset Management set out the four drivers behind the new growth algorithm in its September report: conversion of siding from inferior substrates to fibre cement and from wood decking to composite decking, growth initiatives including product innovation and distribution partnership changes, commercial synergies from combining James Hardie and AZEK, and net price increases. Selector added that management sees a US$23 billion material conversion opportunity.

The early evidence has been strong. Pendal Group reported that the first quarter FY27 result showed US Siding and Trim revenue growth of 17 per cent despite a soggy US residential construction market, driven by restocking, AZEK revenue synergies including new distribution relationships, and share gains in underpenetrated markets. Pendal said the company had “rapidly pivoted from underperforming the market in FY26 to outperforming” as commercial initiatives came together, and noted second quarter guidance came in 10 per cent above expectations.

Cash flow is the other pillar. Selector said FY27 free cash flow guidance was upgraded to US$600 million, up 20 per cent, after James Hardie achieved US$125 million of cost synergies a year ahead of schedule. Combined with the US$980 million sale of the European business, with about US$600 million allocated to debt paydown, Selector said this supports net leverage falling below 2.0 times by the second quarter of FY28. Ten Cap, which watched the shares fall after the investor day, was unmoved: “better cash flow and faster synergies are what we want to see from this business.”

Why the market was not satisfied

The investor day still disappointed some. Pendal noted longer-term sales growth targets were lower than previously outlined, while acknowledging debate over whether the new frameworks are conservative, as recent guidance has tended to be. Ten Cap said the market wanted a near-term earnings upgrade and continues to doubt US housing. L1 Capital pointed out in September that mortgage rates had risen above 7 per cent, their highest since November 2023, putting near-term housing activity under pressure.

Investors Mutual Limited is the clearest holdout. Rating the stock a hold in August, it observed that repair and remodel work, the majority of the business, depends on homeowners' ability to fund projects, and that home equity loans cost about 8 per cent. “Until we see interest rates come down, it's hard for us to get too excited at the current multiple,” the manager said. Perennial Partners trimmed after the stock's strong rally, and Plato Investment Management disclosed in May that it was betting against the company through its Global Alpha Fund.

The cycle as a free option

For the bulls, the housing cycle is not the thesis but an option on top of it. L1 Capital, in its June quarterly, said US single-family housing starts were running around 15 per cent below the long-term average and that a recovery would provide a meaningful tailwind given about half of North American Siding and Trim sales go to large homebuilders. L1 also highlighted governance improvements, including a new CFO, independent chair Nigel Stein and executive incentives tied to EBITDA, sales growth, shareholder return and return on invested capital, and argued there is scope for both earnings growth and multiple recovery as execution, governance and cycle concerns are addressed.

Perpetual Asset Management stressed operating leverage. As a manufacturing business with a largely fixed cost base, Perpetual said, James Hardie's earnings can grow disproportionately as volumes improve, with the US housing market remaining undersupplied. Airlie Funds Management captured the same idea in a September presentation, describing year four of a frozen housing market and arguing investors will look back on this as a fantastic opportunity to buy the business while it bounces along the bottom with self-help support. “Margins will go through the roof when demand comes back, and it will all drop through really nicely to earnings,” Airlie said.

Margins will go through the roof when demand comes back, and it will all drop through really nicely to earnings.

— Airlie Funds Management, Presentation, September 2026

What managers are watching next

The near-term markers are second quarter FY27 results against reaffirmed guidance of US$1.49 billion to US$1.58 billion in sales and US$420 million to US$455 million of adjusted EBITDA, according to Selector, alongside progress on deleveraging and continued share gains in fibre cement. Beyond that, the swing factor remains mortgage rates. Hyperion summed up the view among holders: macroeconomic headwinds persist, but the business should be well positioned when the cycle turns.