Designation:C1496−11StandardGuideforAssessmentandMaintenanceofExteriorDimensionStoneMasonryWallsandFacades1ThisstandardisissuedunderthefixeddesignationC1496;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguideoutlineshowtovisuallyassessexteriorstonemasonrywallsandfacadestodeterminetheirgeneralcondi-tion.Examiningkeyfeaturesoftheconstructioncanhelpidentifyanddiagnoseproblemswhichrequirerepairsorcorrectiveaction.Suchanexaminationcanexposeconditionswhichmaybeaddressedwithmaintenanceandminorrepairs,ormayrequireexpertassistance.Thisguideisnotintendedtobeusedforbuildingsrequiringmajorexteriorrehabilitationorstructuralrepairs.1.1.1Thisguideappliestowallsofsolidstoneordimensionstoneusedasacladding.Stonecladdingistypicallyconnectedtoabackupmaterialwithavarietyofanchoringmethods,includingtraditionalhand-setmasonryanchorssuchasstraps,dowels,cramps,hook-and-eyes,dove-tails,wireties,andthelike.Jointsbetweenstonesinthesetypesofbuildingsareusuallyfilledwithmortarorsealant.Sealant-filledjointsareusuallydesignedtoaccommodatestructuralandthermalmove-ments.1.2Thisguidespecificallyexcludesdimensionstoneusedininteriorbuildingsurfaces,flooringorpaving,slatedimensionstoneusedasroofing.Thoughtheysharesomesimilarassess-mentandmaintenanceconcerns,thinstone(lessthan2in.nominalthickness)exteriorcladding,andstonecladdingat-tachedtometalflamesarealsoexcludedduetotheiruniquedesigncharacteristicsandperformancerequirements.Althoughproceduresandcautionslistedhereinmayapplytowallsandfacadescontainingsemi-dimension,orpartiallysized,stoneintheformofsplit-face,orrubbleandtostone-facadeconcretepanels,theguideisnotspecificallydirectedtosuchstoneuse.Itdoesnotaddressremovalofsmall-areastains.1.3Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspe...
