(19)

(11)

EP 2 286 042 A1

(12)

(43) Date of publication: 23.02.2011 Bulletin 2011/08 (21) Application number: 09742029.3 (22) Date of filing: 04.05.2009

(51) International Patent Classification (IPC):  E04B 9/00(2006.01) E04B 9/04(2006.01) E04B 9/24(2006.01) E04B 9/06(2006.01) (86) International application number: PCT/EP2009/055333 (87) International publication number: WO 2009/135811 (12.11.2009 Gazette 2009/46)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 06.05.2008 EP 08155716 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: MERES, Oskar DK-2665 Vallensbæk Strand (DK) NICKEL, Jürgen DK-1904 Frederiksberg C (DK) (74) Representative: Høiberg A/S  St. Kongensgade 59 A 1264 Copenhagen K 1264 Copenhagen K (DK)