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(11)

EP 2 118 393 A1

(12)

(43) Date of publication: 18.11.2009 Bulletin 2009/47 (21) Application number: 07855631.3 (22) Date of filing: 21.12.2007

(51) International Patent Classification (IPC):  E04C 1/00(2006.01) E04B 2/94(2006.01) E04B 2/04(2006.01) E04C 2/04(2006.01) (86) International application number: PCT/CA2007/002351 (87) International publication number: WO 2008/092237 (07.08.2008 Gazette 2008/32)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 02.02.2007 US 887877 P (71) Applicant: Les Matériaux de Construction Oldcastle Canada Inc. Saint-John, New Brunswick E2L 4S6 (CA)	(72) Inventors: AUBÉ, Stéphane Carignan, Québec J3L 6Y2 (CA) CASTONGUAY, Bertin Magog, Québec J1X 4Z9 (CA) DAOUST, Robert Boucherville, Québec J4B 7X8 (CA) THOMASSEN, Marcel L'épiphanie, Québec J5X 3P5 (CA) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Leopoldstrasse 4 80802 München 80802 München (DE)