Designation:E2766−13StandardPracticeforInstallationofRoofMountedPhotovoltaicArraysonSteep-SlopeRoofs1ThisstandardisissuedunderthefixeddesignationE2766;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedetailsminimumrequirementsfortheinstallationofroofmountedphotovoltaicarraysonsteep-slopedroofswithwater-sheddingroofcoverings.Thesere-quirementsincludeproperwater-sheddingintegrationwiththeroofsystem,materialproperties,flashingofroofpenetrations,andsufficientanchoringperregionaldesignloadrequirements.1.1.1Thispracticedoesnotapplytobuilding-integratedoradhesivelyattachedphotovoltaicsystemsthatareappliedasroof-coveringcomponents.1.2Thispracticedoesnotcovertheelectricalaspectsofinstallation.1.3Installationconsiderationsaredividedintotwodistinctaspects:theinterfacebetweenthephotovoltaicmoduleandthearraymountingstructure,andtheinterfacebetweenthearraymountingstructureandtherooforroofstructure.1.4Safetyandhazardconsiderationsuniquetothisapplication,suchasworkerfallprotection,electricalexposure,accessibilityofmodules,androofclearancearoundtheperim-eterofthearrayareaddressedbyothercodes,standards,orauthoritieshavingjurisdiction.1.5Thispracticeisintendedtoproviderecommendedinstallationpracticesforusebyinstallers,specifiers,inspectors,orforspecificationbyphotovoltaicmodulemanu-facturers.1.6Thispracticeprovidesminimumguidelinesandshouldbeusedinconjunctionwithmoduleandmountingsystemmanufacturers’instructions.Thispracticeoffersasetofin-structionsforperformingoneormorespecificoperations.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMStandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservice...
