Environmental Impact Assessment Current Tools for the AEC Industry CEE 100 Managing Sustainable Buil

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Environmental Impact Assessment Current Tools
for the AEC IndustryCEE 100 - Managing
Sustainable Building ProjectsLCA Unit, Lecture
59 November 2006
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How we live our lives what we eat, what we buy,
what we do, how we build and operate our
buildings(insert LL graphic from Mike
here) impacts us, our
communities, and the environment.
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In green building we are faced with multiple
overlapping criteria that need to be considered
simultaneously

• Careful materials selections represent one of the
  powerful ways to maximize ecological benefits in
  green building.
• These result from wise planning design
• followed by good research specifying.

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In a global economy and culture, choosing what to
use can be done in a variety of increasingly
sophisticated and detailed ways -

• Everything from a Sniff Test, an intuitive,
  qualitative, subjective assessment using three
  primary touchstones
• Renewability
• Local sourcing
• Least processing

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to a complete Life Cycle Analysis Impact
Assessment
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Somewhere in between there is a tangible,
practical method, and appropriate useful
criteria to assess impacts

• Resource depletion extraction
• Embodied energy
• Toxicity of byproducts
• Lifetime toxicity / occupant health
• Local sourced
• Recycled content
• Generation of waste
• Durability
• Repairability
• Potential to reduce building energy use
• Appropriate technology

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Somewhere in between there is a tangible,
practical method, and appropriate useful
criteria to assess impacts

• Resource depletion extraction
• Embodied energy
• Toxicity of byproducts
• Lifetime toxicity / occupant health
• Local sourced
• Recycled content
• Generation of waste
• Durability
• Repairability
• Potential to reduce building energy use
• Appropriate technology

ENVIRONMENT
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Somewhere in between there is a tangible,
practical method, and appropriate useful
criteria to assess impacts

• Resource depletion extraction
• Embodied energy
• Toxicity of byproducts
• Lifetime toxicity / occupant health
• Local sourced
• Recycled content
• Generation of waste
• Durability
• Repairability
• Potential to reduce building energy use
• Appropriate technology

EQUITY
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Somewhere in between there is a tangible,
practical method, and appropriate useful
criteria to assess impacts

• Resource depletion extraction
• Embodied energy
• Toxicity of byproducts
• Lifetime toxicity / occupant health
• Local sourced
• Recycled content
• Generation of waste
• Durability
• Repairability
• Potential to reduce building energy use
• Appropriate technology

ECONOMY
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Comparative Environmental Impact Tool Examples
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Green Materials Scorecard- Bruce Hammond, Sonoma
State UniversityUsed as an exercise in the LCA/
building cost unit of the Green Building
Professional Certification Program
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Sonoma State Green Materials Scorecard
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LEEDLeadership in Energy Environmental
Design- US Green Building Council
www.usgbc.org/leed
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LEED Materials Credits

• LEED Section 4- Materials and Resources
• 1 prerequisite, 13 possible points
  total
• Prerequisite Storage and Collection of
  Recyclables
• Requires recycling in the occupied building.
• Credits 1.1, 1.2, 1.3 Building Reuse
• Encourages reuse of existing building
  (structure, skin, etc.) instead of demolition and
  replacement.
• Credits 2.1, 2.2 Construction Waste Management
• Diverts construction waste from landfills to
  salvage and recycling.Materials being recycled
  Earth, concrete, bricks, dimensional lumber,
  plywood, gypsum wallboard (sheetrock), foam
  insulation, asphalt shingles, paint, glass,
  carpet and pad, cardboard, and others.
• Credits 3.1, 3.2 Resource Reuse
• Encourages the use of salvaged materials in new
  construction.Commonly salvaged materials wood
  posts and beams, wood flooring, wood paneling,
  doors and frames, cabinetry, brick, stone,
  decorative items, antique light fixtures, antique
  plumbing fixtures.

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LEED Materials Credits

• Credits 4.1, 4.2 Recycled Content
• Encourages the use of construction materials
  with recycled content.Examples steel, aluminum,
  concrete, masonry, acoustic tile, insulation,
  carpet and pad, ceramic tile, paint
• Credit 5.1, 5.2 Local/Regional Materials
• Encourages the use of locally manufactured
  materials and locally extracted, harvested, or
  recovered materials
• Credit 6 Rapidly Renewable MaterialsExamples
  bamboo flooring, agrifiber panels,cotton batt
  insulation, straw bales, linoleum, wood
  carpeting, and others
• Credit 7 Certified Wood
• Encourages sustainable forestry practices

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BNIM Sustainability Matrix- Berkebile Nelson
Immenschuh McDowell Architectswww.bnim.com/
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BMIN Sustainability Matrix

• Developed as a tool for the comparative analysis
  of the environmental impacts of varied levels of
  LEED Certification
• Great visualization tool and useful to enhance
  client understanding of green building objectives
• Provides a graphic representation of the
  following building elements
• Energy to operate
• Grid reliance
• Pollution from building operations
• External cost to society
• Impact on schedule
• Construction cost
• Furnishing
• Design fees
• Net present value

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BNIM Sustainability Matrix
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Life Cycle Cost Analysis- Stanford
Universityhttp//dpm.stanford.edu/pdp.html
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Stanford Life Cycle Cost Analysis

• Emphasis is on payback --gt focus on resulting
  energy use

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Stanford Life Cycle Cost Analysis
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SPeAR Sustainable Project Assessment Routine-
ARUP Environmentalhttp//www.arup.com/sustainabi
lity/
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SPeAR

• An environmental indicator assessment method
  developed by Arup Environmental as a design tool
  to help companies evaluate, demonstrate and
  improve on the sustainability of their products,
  projects or the organization's performance.
• The tool looks at natural resources and the
  environmental, economic and social issues
  associated with sustainability and generates a
  sustainability diagram which indicates both the
  negative and positive effects of the project.
• The indicators used in each appraisal are adapted
  on a project by project basis but may also
  include core SPeAR indicators. The indicators
  which have been developed can then be used at any
  point during the life of the project to measure
  and monitor performance. The tailored appraisals
  identify areas where a project/design or
  development is performing well on a
  sustainability level and also highlights areas of
  weakness.
• Examples of good performance could include low
  energy consumption through the use of renewable
  energy or enhancement of the environment by the
  provision of green roofs, whereas poor
  performance or negative effects could include
  negative impact on local employment opportunities
  or high emissions of pollutants.

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SPeAR