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(11)

EP 4 798 799 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24793824.4 (22) Date of filing: 23.10.2024

(51) International Patent Classification (IPC):  E04B 1/76(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/7629 (86) International application number: PCT/EP2024/079886 (87) International publication number: WO 2025/087940 (01.05.2025 Gazette 2025/18)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 24.10.2023 EP 23205448 (71) Applicant: ROCKWOOL A/S 2640 Hedehusene (DK)	(72) Inventors: PÖCKING, Joachim 95615 Marktredwitz (DE) SORGE, Sven Norbert 95615 Marktredwitz (DE) (74) Representative: Brinkmann & Partner  Patentanwälte Partnerschaft mbB Am Seestern 8 40547 Düsseldorf 40547 Düsseldorf (DE)