YALE’S GROWING ‘GREEN’ INITIATIVES|SPECIAL SUPPLEMENT|APRIL 2008
| This artist's rendering shows the exterior of Kroon Hall, which will be Yale's "most green building" when it is completed later this year.
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Newest campus buildings have
many earth-friendly features
As it is constructing new facilities or renovating existing ones, Yale continues to strive for “outstanding environmental
performance” in its facilities. Here are brief profiles of Yale’s
latest green buildings:
Malone Center
The 64,700-square-foot laboratory building was completed in 2005. Located in
an area with readily available public transportation, the building is adjacent
to the 80-mile-long Farmington Canal Greenway, and the building design accommodated
the restored Greenway.
The landscaping features native or adapted species, eliminating the need for
irrigation. All storm water is retained and filtered on site, ensuring that
the project does not add water to the municipal storm water system. Reflective
roofing materials reduce the urban heat-island effect.
Building materials were selected for their high recycled content. When possible,
locally manufactured materials and products were used. Over 75% of the building’s
woodwork is from sustainably managed forests. The polished concrete floors
are durable and easy to clean — no harsh chemicals are required for maintenance.
Paints, coatings and adhesives were chosen for low emission of contaminants
that can lead to sick building syndrome. More than 90% of the project’s
construction waste was recycled.
Potable water use has been reduced by 85% by reusing the waste stream of the
lab water purification system for toilet flushing. The use of this “grey
water,” along with low-flow taps, saves 95,000 gallons per year.
Placing offices on the building’s perimeter gives a direct view to the
outdoors in 90% of the workspaces, reducing the need for artificial lighting.
Occupants breathe 100% filtered outdoor air.
The Malone Center uses almost 10% less energy than allowed by code. Steam for
heating and chilled water for cooling are produced efficiently in Yale’s
central power plant and piped to the building. The ventilating system recovers
heat from the exhaust air, returning that heat to the building. The building
is outfitted with occupancy sensors that switch off lights and reduce ventilation
rates when labs or offices are unoccupied.
When the light through the north facing glass and other windows is sufficient,
the artificial lighting dims, maintaining a constant light level in the hallway
and offices. A process called “commissioning” was used to verify
that all the mechanical and electrical systems were integrated and working
correctly before the building was occupied. An extensive monitoring system
was installed to collect data and monitor the operation of the building. With
this data, Yale can continue to make improvements to the systems in the future.
Sculpture Building
The 51,000-square-foot space houses undergraduate and graduate sculpture programs
of the Yale School of Art. Located near public transportation, the building
accommodates bicycle commuters with bike racks and showers.
The studio space features a large expanse of windows providing a high level
of natural day lighting, dramatically reducing the need for artificial lighting,
and enabling views of the surrounding environment. The building is outfitted
with occupancy sensors to switch off lights and, when the natural light in
perimeter occupied spaces is sufficient, the artificial lighting dims. The
facades of the building facing south and east are outfitted with fixed external
shading to lessen the summertime solar load of the building.
Paneling in the building is made from 100% post-consumer recycled newspapers.
More than half of the building materials were assembled and 78% were harvested
within 500 miles. Beneath the building’s external shading is a curtain
wall that uses an innovative new product called Nanogel. The Nanogel is formed
as a translucent panel, which achieves a high level of energy savings while
providing the user with access to natural light.
Waterless urinals, dual-flush toilets and low-flow lavatories significantly
reduce water use. Storm water from the roof of the main Sculpture Building
and surrounding landscape is used for flushing the toilets. The water-saving
systems reduce water consumption by 65%.
The windows in the building’s studio space can be opened by the occupants
to control ventilation. The first floor woodshop, spray booth and metalworking
shop are equipped with an exhaust system that ensures the swift removal of
airborne irritants while minimizing energy use.
Almost 90% of the project’s construction waste was recycled. A full garbage
and waste recycling room is located on the ground floor and individual recycling
receptacles are provided on all floors.
Kroon Hall
“It will be Yale’s most green building, a symbol of the school’s
ideals and values,” Gus Speth, dean of the Yale School of Forestry & Environmental
Studies (F&ES), said at the groundbreaking for Kroon Hall in the spring of
2007. “It will be an inspirational and instructional model of sustainable
design.”
Scheduled for completion in late 2008, Kroon Hall’s design is rich in
sustainable features. London-based Hopkins Architects designed the facility.
Stephen Kellert, chair of the school’s building committee and the Tweedy
Ordway Professor of Social Ecology at F&ES, said, “Hopkins is one
of only a few firms in the world that combines the two dimensions of sustainability:
low-impact design, which minimizes adverse effects on the natural environment
like carbon emissions, waste and pollution, and positive environmental design,
which maximizes the physical and mental health and productivity of people by
connecting them to the natural environment through a built environment.”
Kroon Hall will be a long, slender, four-story structure with a rounded roofline.
To let the architecture do much of the work of heating, cooling and lighting
the building, the east-west alignment will maximize exposure to the south,
increasing solar heat gain in winter and natural lighting year-round.
To reduce energy requirements through thermal mass in the structure of the
building, the main structural elements of Kroon Hall will be concrete. Through
its design and the use of geothermal energy, Kroon Hall will eliminate the
need for steam and chilled water for heating and cooling. Solar power will
supply a portion of the building’s electricity requirements. The rest
will be provided through alternative sources such as wind.
Storm runoff will be captured in holding tanks and filtered naturally for use
in flush toilets, and waterless urinals will be used to save water. The building
will prominently feature timber harvested from sustainably managed forests,
including Yale-Myers Forest in northeastern Connecticut. Furniture will be
made from recycled and recyclable materials with no volatile organic compounds.
John Bollier, associate vice president of operations for Yale Facilities, said
the building reflected an emerging “holistic” approach at Yale
to reducing the campus’ environmental impact.
“I think we’ll look at Kroon Hall one day as an early model of what
can be,” Bollier said.
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Introduction
Leading by action to promote a better future
New energy programs helping Yale to achieve its goal of reducing greenhouse emissions 43% by 2020
Newest campus buildings have many earth-friendly features
Office works to make sustainability ‘everyone’s business’
In dining halls and classrooms, project raising awareness about relationship between ‘people, land and food’
Recycling ensures University’s trash is not going to waste
Regulated waste gets special treatment at OEHS
Eli Exchange
Adding zip to Yale’s sustainable transportation options
F&ES dean is an advocate for environmental action on and off campus
Yale experts tackling wide range of environmental issues
Scores of educational programs are devoted to ecological topics
‘Eco-friendly’ Yale merchandise
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