BRITISHSTANDARDBS6262-1:2005Glazingforbuildings—Part1:GeneralmethodologyfortheselectionofglazingICS81.040.20 BS6262-1:2005ThisBritishStandard,havingbeenpreparedunderthedirectionoftheStandardsPolicyandStrategyCommittee,waspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon10October2005©BSI10October2005FirstpublishedasBS973,1941Secondedition1945Thirdedition,asCP152,January1960Fourthedition,August1966Fifthedition,July1972Sixthedition,asBS6262,June1982Seventhedition,asBS6262-1,October2005ThefollowingBSIreferencesrelatetotheworkonthisBritishStandard:CommitteereferenceB/520/4ISBN0580467740CommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedbyTechnicalCommitteeB/520,Glassandglazinginbuilding,toSubcommitteeB/520/4,Propertiesandglazingmethods,uponwhichthefollowingbodieswererepresented:BritishAdhesivesandSealantsAssociationBritishPlasticsFederationBritishWoodworkingFederationConsumerPolicyCommitteeofBSICouncilforAluminiuminBuildingFlatGlassManufacturers’AssociationGlassandGlazingFederationNottinghamUniversityOfficeoftheDeputyPrimeMinister—BuildingDivisionOfficeoftheDeputyPrimeMinister—representedbytheBRERICSBuildingControlForumCo-optedmembersAmendmentsissuedsincepublicationAmd.No.DateCommentsBS6262-1:2005©BSI10October2005iContentsPageCommitteesresponsibleInsidefrontcoverForewordii1Scope12Normativereferences13Termsanddefinitions14Designandperformance1AnnexA(informative)Influenceoflegislation7Bibliography9Figure1—Sequenceofdesignevaluationforglazedareas6BS6262-1:2005ii©BSI10October2005ForewordThispartofBS6262hasbeenpreparedbySubcommitteeB/520/4.ItpartiallysupersedesBS6262:1982,whichwillbewithdrawnuponpublicationofallsevenpartsofthenewlyrevisedandrestructuredBS6262.BS6262:1982isbeingrevisedandrestructuredtosimplifyitsuseandwillbepublishedinsevenparts:—Part1:Generalmethodologyfortheselectionofglazing;—Part2:Codeofpracticeforenergy,lightandsound;—Part3:Codeofpracticeforfire,securityandwindloading;—Part4:Codeofpracticeforsafetyrelatedtohumanimpact;—Part5:Codeofpracticeforframedesignconsiderations;—Part6:Codeofpracticeforspecialapplications;—Part7:Codeofpracticefortheprovisionofinformation.RecommendationsforstandardsofworkmanshipforglazinghavebeenpublishedseparatelyinBS8000-7andthereforethissubjectisnotdealtwithinthisstandard.Sincethecorrectselectionofmaterialstobeusedinglazingforbuildingsdependsonmanyfactors,therecommendationsinthispartofBS6262shouldbeusedinconjunctionwiththoseintheotherparts.Asacodeofpractice,thisBritishStandardtakestheformofguidanceandrecommendations.Itshouldnotbequotedasifitwereaspecification,andparticularcareshouldbetakentoensurethatclaimsofcompliancearenotmisleading.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.Inparticular,attentionisdrawntothefollowingstatutoryregulations:a)theBuildingRegulations2000[1];b)theBuildingRegulations(NorthernIreland)2000[2];c)theBuilding(Scotland)Regulations2004[3].SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,pagesiandii,pages1to10,aninsidebackcoverandabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.BS6262-1:2005©BSI10October200511ScopeThispartofBS6262givesageneralmethodologyfortheselectionofanappropriatechoiceofglass,plasticsglazingsheetmaterialandmethodofglazing.Theserecommendationsdonotapplyto:a)patentglazing(seeBS5516-1);b)glassinnon-verticalapplications(seeBS5516-2);c)glazingforfurnitureandfittings(seeBS7376andBS7449);d)glazingforcommercialgreenhouses(seeBS5502-21);e)glazingfordomesticgreenhouses.RecommendationsforstandardsofworkmanshipforglazinghavebeenpublishedseparatelyinBS8000-7andthereforethissubjectisnotdealtwithinthisstandard.2NormativereferencesThefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.BS6399-2,Loadingforbuildings—Part2:Codeofpracticeforwindloads.BS8206-2,Lightingforbuildings—Part2:Codeofpracticefordaylighting.BSEN673,Glassinbuilding—Determinationofthermaltransmittance(Uvalue)—Calculationmethod.3TermsanddefinitionsForthepurposesofthispartofBS6262,thefollowingtermsanddefinitionsapply.3.1glazing(noun)glassorplasticsglazingsheetmaterial,forinstallationintoabuilding3.2panesinglepieceofglassorplasticsglazingsheetmaterial,inafinishedsizereadyforglazing3.3plasticsglazingsheetmaterialplasticsmaterialsintheformofasinglesheet,oracombinationofsheetslaminatedtogether,oranextrudedmulti-wallsheet4Designandperformance4.1IntroductionInrecentyears,thedesignandperformancerequirements,suchashigherthermalinsulation,amendedacousticperformance,etc.,forglassandplasticsglazingsheetmaterialhavebecomemoredemanding.Therearemanyrequirementsthatpreviouslyhadbeenregardedasclient-set(forexa