Designation:C1394−03(Reapproved2012)StandardGuideforIn-SituStructuralSiliconeGlazingEvaluation1ThisstandardisissuedunderthefixeddesignationC1394;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONSSGispopularbecauseofitsuniquemethodofretainingglassorotherpanelsinsmoothexteriorwalls,interruptedonlybynarrowsealantjoints.Thefirstfour-sidedSSGincommercialconstructionisontheformercorporateheadquartersbuildingofSHGIncorporated(formerlyknownasSmith,Hinchman&Grylls)inDetroit,MI,builtin1971.Sincethen,buildingscontainingtwo-orfour-sided(or,occasionally,othernumbersofsidesofnonrectangular-shapedpanels)SSGwallshavebeenconstructedwithinmostcities,someastallas80stories.WhileSSGpopularityincreases,thesealantindustryremainsconcernedoverpotentialfailuresduetotheincreasingnumberofbuildingscontainingstructuralglazingthatareaging;unknownstructuralsealantdurability;andthelevelofunderstandingoftheprinciplesofSSGbyglazers.Thisguideaddressestheseconcernsbyprovidingsuggestionsforinsituevaluationsofcompletedinstallationsofanyage.1.Scope1.1Itisrecommendedtoperiodicallyevaluatetheexistingconditionofstructuralsealantglazing(hereinaftercalledSSG)installationsinsitutodetectproblemsbeforetheybecomesevereorpervasive.EvaluationofexistingSSGinstallationsarerequiredbycertainbuildingcodesandlocalordinances.Thisguideprovidesaprogramtoevaluatetheexistingconditions,liststypicalconditions,whichmightbefound,andsuggeststimeswhensuchevaluationsareappropriate.Thecommitteewithjurisdictionoverthisstandardisnotawareofanycomparablestandardspublishedbyanyotherorganiza-tions.2.ReferencedDocuments2.1ASTMStandards:2C717TerminologyofBuildingSealsandSealantsC1392GuideforEvaluatingFailureofStructuralSealantGlazingC1401GuideforStructuralSealantGlazing3.Terminology3.1Definitions:Thedefinitionsofthefollowi...
