(19)

(11)

EP 2 742 194 A1

(12)

(43) Date of publication: 18.06.2014 Bulletin 2014/25 (21) Application number: 11870706.6 (22) Date of filing: 10.08.2011

(51) International Patent Classification (IPC):  E04D 1/36(2006.01) (86) International application number: PCT/US2011/047219 (87) International publication number: WO 2013/022445 (14.02.2013 Gazette 2013/07)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR (71) Applicant: Owens Corning Intellectual Capital, LLC Toledo OH 43659 (US)	(72) Inventors: GAVRIS, Mihai Cluj Cluj-Napoca (RO) OLTEAN, Tiberius, Loan R-401113 Cluj Turda (RO) (74) Representative: Mallalieu, Catherine Louise  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)