Exhibit 99.1

			James Hardie Industries plc 1st Floor, Block A One Park Place Upper Hatch Street, Dublin 2 D02 FD79, Ireland T: +353 (0) 1 411 6924 F: +353 (0) 1 479 1128

18 November 2025

The Manager

Company Announcements Office

Australian Securities Exchange Limited

20 Bridge Street

SYDNEY NSW 2000

Dear Sir/Madam

Results for Announcement to the Market

James Hardie announced today its results for the 2nd quarter and six months ended 30 September 2025 and has filed the following documents with the ASX:

•			ASX Cover Sheet
•			Earnings Release
•			Management's Analysis of Results
•			Earnings Presentation
•			Condensed Consolidated Financial Statements
•			Half-Yearly Directors' Report

Copies of these documents are available on James Hardie’s investor relations website at
https://ir.jameshardie.com.au/financial-information/financial-results.

Yours faithfully
Joe Ahlersmeyer, CFA
Vice President, Investor Relations

This announcement has been authorized for release by the Board of Directors of James Hardie Industries plc.

James Hardie Industries plc is a limited liability company incorporated in Ireland with its registered office at
1st Floor, Block A, One Park Place, Upper Hatch Street, Dublin 2, D02 FD79, Ireland.

Directors: Howard Heckes (USA), Gary Hendrickson (USA), Persio Lisboa (USA), Renee Peterson (USA),
John Pfeifer (USA), Suzanne B. Rowland (USA), Jesse Singh (USA), Nigel Stein (UK).

Chief Executive Officer and Director: Aaron Erter (USA)

Company number: 485719

ARBN: 097 829 895