Exhibit 99.1 James Hardie Industries plc Europa House 2nd Floor, Harcourt Centre Harcourt Street, Dublin 2, D02 WR20, Ireland T: +353 (0) 1 411 6924 F: +353 (0) 1 479 1128 13 February 2020 The Manager Company Announcements Office Australian Securities Exchange Limited 20 Bridge Street SYDNEY NSW 2000 Dear Sir/Madam Substantial Holding Notice As required under ASX Listing Rule 3.17.3 please see attached a copy of the substantial holding notice received by James Hardie on 12 February 2020. Yours faithfully Natasha Mercer Company Secretary This announcement has been authorised for release by the Company Secretary, Ms Natasha Mercer. James Hardie Industries plc is a limited liability company incorporated in Ireland with its registered office at Europa House 2nd Floor, Harcourt Centre, Harcourt Street, Dublin 2, D02 WR20, Ireland. Directors: Michael Hammes (Chairman, USA), Brian Anderson (USA), Russell Chenu (Australia), Andrea Gisle Joosen (Sweden), David Harrison (USA), Persio Lisboa (USA), Anne Lloyd (USA), Moe Nozari (USA), Rada Rodriguez (Sweden). Chief Executive Officer and Director: Jack Truong (USA) Company number: 485719 ARBN: 097 829 895