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EMERALD ARCHITECTURE: CASE STUDIES IN GREEN BUILDING
TRISTAN KORTHALS ALTES, JESSICA BOEHLAND, NADAV MALIN
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state office building enriches employees lives with light and landscape
The geometry of the building, withits strong horizontal lines crowned
with a gently curving roof, is intended
to echo the limestone bluffs over the
Missouri River, where the building
sits.
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SITE PLAN
1 Site constraints limit the parking lot size; future
development elsewhere on the site will provide
more space.
2 The main building entrance bridges a low area in the
landscape.
3 The buildings east-west axis maximizes solar
exposure, while the buildings two wings shade each
other from harsh morning and afternoon sun.
4 The Missouri River is a stones throw away.
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Horizontal lightshelves and vertical fins
on the exterior facade, both of concrete,
block direct sunlight while reflecting it
into the buidlings interior. Open offices
are located on the buildings perimeter,
where they enjoy this daylighting, while
building services are located at the core.
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Certified sustainable lumber
from Missouris only Forest-
Stewardship- Council-certified forest
was used in the atrium, which
is filled with daylight and views of the
bluffs.
A non-irrigated landscape
design with indigenous
grasses, shrubs, and trees has
thrived.
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SKY CONDITIONS
This chart illustrates the average
proportion of cloudy, mixed, and
clear sky conditions over the
course of a year.
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CALPERS HEADQUARTERS
COMPLEX
SACRAMENTO, CALIFORNIA
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The CalPERS facade blends
vertical and horizontal elements,
including exterior and interior
lightshelves, to filter and shade the
sunlight, while allowing for
daylight penetration and views
from the buildings interior.
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Replacing surface parking with below-grade parking
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The project features daylighting, views, natural ventilation, and a series of
elevated terraces, fostering employees connection with the natural environment.
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The central atrium, referred to as the
living room, is topped by a
skylight and a scrim that filters lightand reduces heat gain. Many of the
surfaces in this space are FSCcertified
American cherry.
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The light-colored steel structure
produces dappled shading in theOutdoor courtyards.
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The satellite antennae and
control rooms perch above an
earth-sheltered office floor in
NOAAs new operations facility.
Photographs from the national
oceanic and Atmospheric
Administrations (NOAA)
satellitesviews of the earth
and its weather patterns fromabovepervade our media-
rich culture. With this
established public face, NOAA
officials saw little need for a
signature building by a big
name architect.
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The nearly windowless fourstory
bar houses computer facilities
and satellite controls that engineersresisted locating below
grade. The northsouth orientation
is optimal for positioning the
antennae close together.
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The unexpected design features satellite dishes on the roofdubbed the
bar of a windowless rectangular box.
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The entrance ramp leads into a conference facility at an intermediate
level, below the control rooms and above the primary workspace.
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The extensive green roof ispunctuated by large light-wells
and circular skylights of
various sizes.
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Ceiling heights up to 28 feet createa spacious feel in the large,
earthsheltered open workspace.
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