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Sustainable Buildings and Green Markets An Engineering Perspective Presented by: Haven Alford Overview Why does it matter Elements of Sustainable Buildings Government Application (Green Market Incentives)

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Sustainable Buildings and Green Markets

An Engineering Perspective

Presented by:

Haven Alford


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Overview

  • Why does it matter

  • Elements of Sustainable Buildings

  • Government Application (Green Market Incentives)


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Environmental Impact of Buildings (why does it matter?)US Commercial Buildings Facts:

  • 65.2% total US electricity consumption

  • > 36% total US primary energy use

  • 30% total US greenhouse gas emissions

  • 136 million tons of US construction/demolition waste (about 2.8 lbs/person/day)

  • 12% of potable water in the US

  • 40% (3 billion tons annually) of raw materials used globally

www.usgbc.org


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5 Broad Areas of Application

  • Sustainable Sites

  • Energy and Atmosphere

  • Indoor Environmental Quality

  • Water Efficiency

  • Materials and Resources


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LEED Concept and Intent

  • LEED is the standard for sustainable design worldwide.

  • Design and construction practices that significantly reduce or eliminate the negative impact of buildings on the environment.

  • LEED is a point based system that ranks the sustainability of a building’s design by:

    • Certified (26 – 32 points)

    • Silver (33 – 38 points)

    • Gold (39 – 51 points)

    • Platinum ratings (52 – 69 points)


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Why engineers (and you) should care…

  • Discipline:

    • MEP 28 points 41%

    • Architect/LA 21 30%

    • Civil 11 16%

    • Constructor 4 6%

    • Undefined 5 7%

    • Totals 69 points 100%


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Sustainable Sites

  • Site Selection

  • Development Density

  • Brownfield Redevelopment

  • Alternative Transportation

    • Public Transportation

    • Bicycle Storage and Changing Rooms

    • Alternative Fuel Vehicles

    • Parking Capacity

  • Reduced Site Disturbance

  • Storm Water Management


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Alternative Fuel Vehicles

www.state.me.us/cleangovt/ ENERGY/energy.htm


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Sustainable Sites

  • Reduced Site Disturbance

    • Protect or Restore Open Space

    • Development Footprint

  • Storm Water Management

    • Rate and Quantity

    • Treatment

  • Heat Island Effect

    • Non-Roof

    • Roof

  • Light Pollution Reduction


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Green Roof

  • www.dep.state.pa.us/.../ se/stormwater.htm


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Light Pollution

http://archives.cnn.com/2000/US/08/24/dimming.the.lights.ap/large.usa.lights.jpg


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Water Efficiency

  • Water Efficient Landscaping

    • Reduce by 50%

    • No Potable Use or No Irrigation

  • Innovative Wastewater Technologies

  • Water Use Reduction

    • 20 – 30%


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Waterless Urinals and Composting/Waterless Toilets

http://www.aventer.com/toilets/images/t3.jpg

http://www.magic-tec.com/magic_ur.html


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Energy and Atmosphere

  • Fundamental Building System Commissioning

  • Minimum Energy Performance

  • CFC Reduction in HVAC&R Equipment

  • Optimize Energy Performance

  • Renewable Energy

    • 5 – 10%

  • Additional Commissioning

  • Ozone Protection

  • Measurement and Verification

  • Green Power


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Example of Natural Ventilation

www.thedalles.k12.or.us/.../ sld018.htm


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Renewable Energy

http://www.power-technology.com


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Photovoltaic Roof Systems

http://www.fsec.ucf.edu/pvt/education/inspgcps/handbook/images/pvarray.jpg

http://www.alternativeenergyinc.com/images/gallery/roof_mounted_pv.jpg


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Materials and Resources

  • Storage and Collection of Recyclables

  • Building Reuse

    • Maintaining 75 – 100% of Existing Walls, Floor, and Roof

    • Maintain 100% of the shell/structure and 50% of non-shell/non-structure

  • Construction Waste Management

    • Divert 50 – 75% from a landfill

  • Resource Reuse

    • 5 – 10% of materials used are salvaged, refurbished, or reused materials, products and furnishings


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Materials and Resources

  • Recycled Content

    • 5 – 10% (post-consumer + ½ post-industrial)

  • Regional Materials

    • 20% manufactured regionally

    • 50% extracted regionally

  • Rapidly Renewable Materials

  • Certified Wood


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Recycled and Rapidly Renewable Materials

http://www.eps.or.kr

http://www.franksupply.com


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Indoor Environmental Quality

  • Minimum IAQ (Indoor Air Quality) Performance

  • Environmental Tobacco Smoke Control

  • Carbon Dioxide Monitoring

  • Ventilation Effectiveness

  • Construction IAQ Management Plan

    • During Construction

    • Before Occupancy


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Indoor Environmental Quality

  • Low Emitting Materials

    • Adhesives and Sealants

    • Paints and Coatings

    • Composite Wood

      Indoor Chemical and Pollutant Source Control

  • Controllability of Systems

    • Perimeter Spaces

    • Non-Perimeter Spaces


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Indoor Environmental Quality

  • Thermal Comfort

    • Compliance with ASHRAE 55

    • Permanent Monitoring System

  • Daylight and Views

    • Daylighting in 75% of spaces

    • Views for 90% of spaces


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Example of Daylighting

csep1.phy.ornl.gov/ CSEP/PT/NODE37.html


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Federal Government LEED Applications

  • General Services Administration (GSA)

  • US Air Force

  • US Army Corps of Engineers

  • Department of State

  • Department of Energy (DOE)

  • Environmental Protection Agency (EPA)

  • US Navy


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State Government LEED Applications

  • California

  • Pennsylvania – all new construction

  • Oregon – tax credit

  • New York

  • Maryland – all buildings over 500,000 ft2

  • New Jersey – schools, and voluntary applications

  • Arizona

  • Missouri

  • Wisconsin


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Local Government LEED Applications

  • Austin, Texas

  • Boulder, Colorado

  • Los Angeles, California

  • San Diego, California

  • San Mateo, California

  • Arlington, Virginia

  • Cook County, Illinois

  • Portland, Oregon

  • San Jose, California

  • Seattle, Washington


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Incentives

  • Sell energy back to the utility company

  • Tax breaks on new technologies

  • Rebates, grants and loans


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Sources

  • Ray Yunk, Professor of Architectural Engineering

  • Dustin Schafer, Instructor of Architectural Engineering

  • www.usgbc.org

Questions?


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