ULTRALOX is owned by James Hardie (Ireland, NYSE: JHX), which acquired the brand on 1 July 2025, as part of a $8.75 billion deal that also included AZEK Exteriors, TimberTech and 3 others.[1][2][3][4]
ULTRALOX is one of James Hardie's railing brands, sold through the Deck, Rail & Accessories segment alongside TimberTech and INTEX. The company's 10-K groups the three together as offering "durable, low-maintenance composite, PVC, aluminum and steel railing products" for outdoor living spaces in the United States and Canada. ULTRALOX came to James Hardie through the 1 July 2025 acquisition of The AZEK Company.
How often James Hardie names ULTRALOX in its annual report
A plain count of the times the name appears in the text of each annual report, not counting the start of a sentence. A brand that an owner writes about more is usually one it treats as central. The brand is named more often than it was three years earlier.
James Hardie is a publicly listed company headquartered in Dublin, Ireland. Brandtree records 8 brands under its control, and it is listed as NYSE: JHX.
James Hardie Industries plc is a building-products manufacturer incorporated in Ireland, with its principal executive office in Dublin, best known for the fibre cement siding technology it originated in Australia. It reports four segments — Siding & Trim, Deck, Rail & Accessories, Australia & New Zealand, and Europe — and files an annual report on Form 10-K with the SEC under CIK 0001159152. On 1 July 2025 it completed its acquisition of The AZEK Company Inc., a US outdoor-living products maker, adding the TimberTech, AZEK Exteriors, Versatex, StruXure, ULTRALOX and INTEX brands to its existing Hardie and fermacell lines.
Brandtree records a controlling owner for 2,570 brands that began in the United States.
501 of them (19%) are now controlled by a company headquartered in another country, ULTRALOX among them.
James Hardie, the fibre-cement siding maker, agreed to buy The AZEK Company, a maker of engineered wood-alternative decking, railing, trim and outdoor-living products, in a cash-and-stock deal announced 24 March 2025 (23 March in Chicago) and completed 1 July 2025. AZEK shareholders received USD 26.45 in cash plus 1.0340 James Hardie ordinary shares for each AZEK share; James Hardie's own announcement put the total transaction value at USD 8.75 billion, a figure that includes about USD 386 million of AZEK net debt as of 31 December 2024 and is therefore an enterprise value rather than a straight equity price. AZEK had no controlling parent, so no seller company id applies; the deal folded AZEK's TimberTech decking, AZEK Exteriors trim and moulding, Versatex trim, StruXure pergolas, UltraLox railing hardware and Intex railing brands into James Hardie, turning a fibre-cement specialist into a broader exterior building-products company spanning siding, decking, trim and railing.
The parent company of ULTRALOX is James Hardie, a publicly listed company headquartered in Ireland.
Is ULTRALOX American or Irish?
⌄
ULTRALOX originated in the United States, but it is owned today by James Hardie, which is headquartered in Ireland. So ULTRALOX is an American-origin brand under Irish ownership.
When did James Hardie buy ULTRALOX?
⌄
James Hardie completed its acquisition of ULTRALOX on 1 July 2025, after announcing the deal on 24 March 2025. The deal, which also included AZEK Exteriors and TimberTech and 3 others, was valued at $8.75 billion (enterprise value).
Is ULTRALOX still owned by James Hardie?
⌄
Yes. As of 29 October 2026, ULTRALOX is still owned by James Hardie. The ownership record was last checked against primary sources on that date.
Sources (4) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
Brandtree needs to remember this choice and does not set any other cookie unless you accept.
If you choose “Accept all”, we also use Google Analytics cookies to count visits and see which pages help, so we can improve the site.
If you choose “Accept required”, no analytics cookie is set. Google Analytics still receives a cookieless ping with the page address and your IP address. No advertising is used either way. Privacy policy