(19)

(11)

EP 1 005 596 A1

(12)

(43) Date of publication: 07.06.2000 Bulletin 2000/23 (21) Application number: 98939561.1 (22) Date of filing: 30.06.1998

(51) International Patent Classification (IPC)7: E04D 3/35, E04C 2/16, E04B 1/80 (86) International application number: PCT/EP9803/980 (87) International publication number: WO 9909/270 (25.02.1999 Gazette 1999/08)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IT LI SE Designated Extension States: LT LV RO SI (30) Priority: 18.08.1997 GB 9717484 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: GULDBERG, Marianne DK-2860 Soborg (DK) JENSEN, Soren, Lund DK-2840 Holte (DK) (74) Representative: Lawrence, Peter Robin Broughton  Gill Jennings & EveryBroadgate House7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)