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Department of Design and
Environmental Analysis
Cornell University

    1.  External Consideration

    2.  Core & Envelope

    3.  Indoor Ecology

    4.  Material/Product Content

    5.  Ecotecture Worksheets

    6.  Additional information.

          7Redarrow.gif (61 bytes)  Case Studies

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DESIGN CONSIDERATIONS

External Consideration

Design Outcome

N/A

Site Planning

Site Selection - set into a hillside   
Campus vs. High-Rise -campus setting with an existing Gap building across the street  
Solar Access & Orientation -east-west orientation in order to maximize southern sun
Prevailing Winds -outside air used to cool interior  
Adjacent Buildings - visual access minimized by natural growth  
Disturbance of site throughout construction -minimized through an initiative
Construction Waste Management -recycled waste as appropriate
Access/Egress & Circulation   X
Outdoor Lighting & Safety   X

Environmental Impact

Restoration & Preservation of Flora & Fauna - roof is  planted with native grasses, grove of oak trees maintained, and native plants restored to site
Groundwater control/ erosion control -undulating roof catches and filters storm water  
Ecosystems (air, water, soil) -attempts made to restore natural ecosystem of the region

Transportation

Biking /Walking  -accessible
Mass Transit - available
Shuttle /Bus - available
Commuter Rideshare - available
Parking - parking is hidden in a four-level structure built partially underground

Noise & Vibration

Effect of surrounding noise & vibration on new buildings -grass-covered roof helps provide acoustical insulation from San Francisco Airport nearby
Amount of noise released into environment -grass-covered roof helps provide acoustical insulation

Core & Envelope

Design Considerations

N/A

Circulation

Stairwell Placement   X
Lighting, Heating & Cooling -a system of raised floors, louvers, and fans draws night air through building to cool concrete mass, and heat generated through machines and people to obviate need for additional heat
Wayfinding   X
Building Form /Shape -undulating building form designed to capture more daylight opportunities  
Energy Efficiency -system of raised floors, louvers, and fans has enabled the building to expend 30% less energy than is required by CA. regulations
Harmony w/Environment -grass-covered roof to "rebuild" environment into the structure

HVAC

Self-sufficient   X
Renewable Fuels - natural daylighting and air used to warm and cool the building
Fossil Fuels - electrical heat generated through machines and people to obviate need for additional heat
Ventilation -modular carpet tiles and floor vents provide flexible 100% fresh air delivery wherever desired
Cooling System -a system of raised floors, louvers, and fans draws night air through building to cool concrete mass
HVAC Intake & Exhaust - air intake at raised floor  
Personal Environment Modules - flexible operation of vents and fans

 

Glazing

Lightshelves

Daylighting Monitors - broad light monitors above each atrium follow east-west axis to maximize exposure to the southern sun

 

Occupancy Sensors -shut off lights when offices are empty

 

Superwindows   X
South Facing Glass -light monitors follow the east-west axis to maximize exposure to southern sun
Skylights & Clerestories -clerestories provide daylighting
Courtyards & Atria -atriums throughout building filled with natural plants

Insulation / Energy Efficiency

High Insulation - grass roof provides thermal insulation
Low Emission -non-toxic using natural ventilation
Recyclable & Natural Materials -grass roof
Earth Covered Building -grass roof  
Asbestos

X

Building Lifecycle/ Longevity

Adaptive Reuse -designed to be used as residential housing later
Monitoring Systems or Devices - "Smart" building is computer monitored to adjust according to temperature

Materials

Natural Materials -stone and metal
Recyclable & Renewable -encouraged to use recycled materials
Local Materials -minimize amount of embodied energy
Non-toxic/ Low-toxicity -encouraged to use low-toxic building materials
Harmony w/Environment -grass roof designed to "blend" into natural surroundings 

Roofing

Storm Water Drainage - grass roof catches and filters storm water  
Roof Top Units -daylighting monitors to maximize incoming southern sun  
Solar Units - daylighting monitors  
Indoor Ecology Design Considerations N/A

Space Planning

Smaller spaces w/large group areas - open office plan
Shared spaces - shared work spaces available
Telecommuters - not discussed

Indoor Air Quality

Air Changes per hour

Smoking Policy - no smoking policy

 

Air Filtration -natural ventilation allows allergenic particulate matter to enter indoor air circulation
Natural Ventilation - raised floor and floor vents permit fresh air intake
Building Materials -stone, glass and metal
"Breathing Skin" - louver system allows building to breathe
Pesticide Use -not permitted
Indoor Flora -indoor flora throughout atria areas

Lighting

Natural Daylighting - broad light monitors following east-west axis maximize exposure to the high southern sun
Artificial Lighting - computers raise the artificial light level as light levels decrease
Circuiting & Switching - computerized lighting system
Material / Product Content Design Considerations N/A

Furniture

Natural & Recycled - empower employees to find re-uses for fixtures and appliances
Raw Materials   X 
Acquisition -select products that have been obtained in environmentally intelligent ways
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - purchase low emissive, low toxic products
Renewability   X

Walls & Partitions

Natural & Recycled - natural materials used when feasible
Raw Materials -obtain materials that are safely grown or removed from the earth
Acquisition -select products that have been obtained in environmentally intelligent ways
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - purchase low emissive, low toxic products
Renewability - recycled content

Fabrics

Natural & Recycled   X
Raw Materials   X
Acquisition -select products that have been obtained in environmentally intelligent ways
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - purchase low emissive, low toxic products
Renewability   X

Flooring & Carpeting

Natural & Recycled - wood, stone
Raw Materials - modular carpet tiles  
Acquisition -select products that have been obtained in environmentally intelligent ways   X
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - low emissive materials selected
Renewability - permits natural ventilation

Appliances

Natural & Recycled - empower employees to find re-uses for fixtures and appliances
Raw Materials   X
Acquisition -select products that have been obtained in environmentally intelligent ways
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - purchase low emissive, low toxic products
Renewability   X

Finishes & Laminates

Natural & Recycled - natural finishes utilized to minimize emissions
Raw Materials   X
Acquisition -select products that have been obtained in environmentally intelligent ways  
Processing & Mfr. -select products that have been manufactured in environmentally intelligent ways
Product Distribution   X
No / Low Emissions - purchase low emissive, low toxic products
Renewability   X

Products

Natural or Recycled - encourage employees to purchase products that contain high percentages of post-consumer recycled material
Product Distribution -minimize the embodied energy in travel
No / Low Emissions - purchase products that have low emissions
Disposal & Renewability - recycle and reduce waste

greenblt.gif (569 bytes)External Considerations Case Study

Cornell University, April 1999