CaseStudyProjectExeterLibrary4243323 ExeterLibraryLouisKahn InspirationisthefeelingofbeginningasthethresholdwhereSilenceandLightmeet Silence theunmeasurable desiretobe desiretoexpress thesourceofnewneed meetsLight themeasurable giverofallpresence bywill bylaw themeasureofthingsalreadymade asathresholdwhichisinspiration thesanctuaryofart theTreasuryofShadow Nospaceisreallyanarchitectureunlessithasnaturallight Evenaroomwhichmustbedarkneedsatleastacrackoflighttoknowhowdarkitis Agreatbuilding inmyopinion mustbeginwiththeunmeasurable gothroughmeasurablemeanswhenitisbeingdesigned andintheendmustbeunmeasurable Iseethelibraryasaplacewherethelibrariancanlayoutthebooks openespeciallytoselectedpagestoseducethereaders Thereshouldbeaplacewithgreattablesonwhichthelibrariancanputthebooks andthereadersshouldbeabletotakethebookandgotothelight Ifyouweregiventhefirstcommissionbeforelibrarieswereeverbuilttobuildaplacewherethesebookscanbe whatwouldyoudo Thatisthethoughtyouhaveaboutitsnaturewhenyouaregiventheprivilegeofdesigningabuilding Therecouldbeindecisionastowhatalibraryis Itdependsonhowmuchyoulovethebook howmuchyouthinkitshouldnottakenoutanditsbeingsopreciousthatnobodydisturbsitslocation ExeterLibrarydesignphilosophy Jan MayandSep DecneedheatingJune AugcanbefreerunningLocation Exeter NewHampshireLatitude 43 Summersolstice 70 Wintersolstice 23 Equinox 49 ExeterLibrarymicro climateanalysis ExeterLibraryshadowanalysis equinox Summersolstice Wintersolstice 9 00 12 00 15 00 18 00 9 00 12 00 15 00 18 00 9 00 12 00 15 00 18 00 ExeterLibrarySOLARAZIMUTH 7 00 11 00 11 00 14 00 5 30 9 00 9 00 12 15 12 15 18 00 18 00 19 15 7 30 12 45 12 45 19 15 equinox Summersolstice Wintersolstice ExeterLibrarySOLARANGEL Summersolstice12 00 70 Wintersolstice12 00 23 Equinox12 00 49 ExeterLibraryspacesequences 6 N 8 OVERCASTSKY OVERCASTSKY OVERCASTSKY ExeterLibraryspacesequences OVERCASTSKY Sunnysky OVERCASTSKY ExeterLibraryspacesequences ExeterLibraryspacesequences OVERCASTSKY OVERCASTSKY OVERCASTSKY OVERCASTSKY ExeterLibraryspacesequences Sunnysky overcastsky Sunnysky ExeterLibraryspacesequences daylightfactor daylightfactor ExeterLibrarywindowtypology Size 1 85m 4 6mnumber 32Notopenable Size 1 45m 2 2mnumber 24Notopenable Size 2 5m 0 8mnumber 12Notopenable Size 1 85m 4 6mnumber 64Notopenable Size 0 9m 7 8mnumber 4Notopenable Exetergeometryanalysis Exeteranalysis ExeterLibraryfacade ExeterLibrarydesigndevelopment ExeterLibrarysections ExeterLibraryscaleanalysis ExeterLibraryresearchquestionsandmethodologies TopicTheEnvironmentalperformanceoflightandheatinExeterlibrarybylouiskahnObjectivesThedaylightperformanceinthebuildingindifferentareasincludingtheatrium bookcollectionareaandthereadingarea Thepotentialthermalprobleminthereadingareabecauseofthefullglasswhenitisfreerunning Theenergyconsumptiontokeepthetemperatureinthemechanicbuilding ResearchquestionsHowwouldthesidefa adeandatriumworktogethertoachievethedesignedluminosity Whatistheimpactofglassfa adeonthethermalenvironmentinthereadingarea AssumptionTheatriumcanbenefitfromtherooflightandthebookcollectionareacannotbenefitbecauseofthebookneedtobeprotectedfromthedaylight Itmayexperienceoverheatinginthehotsummerbecauseofthefullglassanditmaycausetheheatlossinwinter MethodologyComputermodels sketchup pda iesve ecotectradiancePhysicalmodel heliodonandovercastsky ExeterLibraryPDAanalysis Onthecoldestday Onthehottestday ExeterLibrarycaseone Averagedaylight Averagedaylightfactor 3 95 ExeterLibrarycaseone Readingarea Collectionarea Readingarea Atrium Collectionarea daylightfactor daylightfactor ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycaseone 79280 ExeterLibrarycaseone ExeterLibrarycaseone ExeterLibrarycasetwo Averagedaylightfactor 4 05 ExeterLibrarycasetwo ExeterLibrarycasetwo ExeterLibrarycasetwo Readingarea Collectionarea Readingarea Atrium Collectionarea daylightfactor daylightfactor ExeterLibrarycasethree Averagedaylightfactor 4 3 ExeterLibrarycasethree ExeterLibrarycasethree ExeterLibrarycasethree Readingarea Collectionarea Readingarea Atrium Collectionarea daylightfactor daylightfactor ExeterLibraryreference Lobell J andKahn L 1979 Betweensilenceandlight Boulder Shambhala Gargiani R andPiccolo S n d LouisI Kahn Dietsch D andSteeneken S 1981 Architectureinthepublicrealm NewYork ColumbiaUniversityGraduateSchoolofArchitectureandPlanning Brownlee D andDeLong D 1997 LouisI Kahn NewYork NY UniversePub AlexandraTyng 1984 Beginnings LouisI Kahn sPhilosophyofArchitecture 1984