(19)

(11)

EP 0 832 338 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96917504.0 (22) Date of filing: 07.06.1996

(51) International Patent Classification (IPC):  E04D 15/ 02( . ) (86) International application number: PCT/EP1996/002475 (87) International publication number: WO 1996/041926 (27.12.1996 Gazette 1997/04)

(84) Designated Contracting States: AT BE DE DK FR GB IE IT NL (30) Priority: 13.06.1995 NL 19951000554 (71) Applicant: REDLAND DAKPRODUKTEN B.V. 3417 ZG Montfoort (NL)	(72) Inventors: BORSBOOM, Wouter, Antonius NL-2265 EM Leidschendam (NL) VAN DER BERG, Garbrand NL-2995 AM Houten (NL) (74) Representative: Grant, John Stephen Shirley  Redland PLC Redland House Station Approach Dorking Surrey RH4 1TH Dorking Surrey RH4 1TH (GB)