sustainable buildings and green markets an engineering perspective presented by: haven alford
TRANSCRIPT
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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.jpghttp://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?