(19)

(11)

EP 4 103 783 A1

(12)

(43) Date of publication: 21.12.2022 Bulletin 2022/51 (21) Application number: 21754267.9 (22) Date of filing: 12.02.2021

(51) International Patent Classification (IPC):  E01F 15/14(2006.01) E04H 17/10(2006.01) E01F 15/06(2006.01) (52) Cooperative Patent Classification (CPC): E01F 15/06; E01F 15/143 (86) International application number: PCT/NZ2021/050016 (87) International publication number: WO 2021/162558 (19.08.2021 Gazette 2021/33)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 13.02.2020 NZ 20761715 (71) Applicant: Fletcher Building Holdings Limited Auckland 1061 (NZ)	(72) Inventors: RYDER, Emerson Patrick James Wellington 6140 (NZ) LEWIS, Daniel Charles Wellington 6140 (NZ) (74) Representative: J A Kemp LLP  80 Turnmill Street London EC1M 5QU London EC1M 5QU (GB)