1.07 SUMMER | WINTER EQUINOX_ SUMMER SOLSTICE_JUNE 21ST_
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WINTER SOLSTICE_DECEMBER 21ST_
8:00AM_ EQUINOX_MARCH 21ST_
8:00AM_
THE 3D ANIMATIONS ENABLE US TO DETERMINE THE SUN PATH AROUND THE SITE THROUGHOUT THE YEAR AT DIFFERENT TIMES OF DAY IDENTIFYING AREAS WHICH WILL BENEFIT FROM NATUTRAL DAYLIGHT AND AREAS WHICH WILL SUFFER FROM OVERSHADOWING. FROM THESE STUDIES WE CAN INTERPRET THAT THE BUILDING WILL REQUIRE THE USE OF ARTIFICIAL LIGHTING IN DECEMBER AS THE ENTIRE BUILDING IS OVERSHADOWED FOR THE MAJORITY OF THE DAY DUE TO THE LOW ANGLE OF THE SUN IN THE SKY AND CONSEQUENTLY THE LOWER LIGHTING LEVELS, HERE DAYLIGHTING OF THE LIBRARY IS ONLY VIABLE AROUND 12:00 NOON. DURING SUMMER SOLSTICE THE BUILDING IS PREDOMINANTLY DAYLIT ALTHOUGH DURING THE EARLY MORNING AND LATE AFTERNOON SOME ARTIFICIAL LIGHTING MAY BE REQUIRED TO COMBAT OVERSHADOWING FROM THE NEIGHBOURING APPARTMENT BUILDING ON HUDSON STREET, ALTHOUGH AN ABUNDANCE OF DIFFUSE LIGHT WILL FILTER DEEP INTO THE LIBRARY PLAN VIA THE GLAZED VIEWING BOX AND TRIPLE HEIGHT ATRIUM SPACE ON THE NORTH FACADE. SIMILARLY DURING MARCH THE EASTERLY FACADE IS HEAVILY OVERSHADOWED WHILE THE SOUTHERLY FACADE IS EXPOSED TO DIRECT SUNLIGHT FOR THE MAJORITY OF THE DAY ENABLING A HIGH DAYLIGHT FACTOR WHICH MUCH BE CONTROLLED TO AVOID GLARE AND OVERHEATING WITHIN THESE SPACES. ENVIRONMENTAL ISSUES_14_