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)

Environmental Impact of Buildings (why does it matter 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

5 Broad Areas of Application Sustainable Sites Energy and Atmosphere Indoor Environmental Quality Water Efficiency Materials and Resources

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)

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%

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

Alternative Fuel Vehicles www.state.me.us/cleangovt/ ENERGY/energy.htm

Sustainable Sites Reduced Site Disturbance Storm Water Management Protect or Restore Open Space Development Footprint Storm Water Management Rate and Quantity Treatment Heat Island Effect Non-Roof Roof Light Pollution Reduction

Green Roof www.dep.state.pa.us/.../ se/stormwater.htm

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

Water Efficiency Water Efficient Landscaping Reduce by 50% No Potable Use or No Irrigation Innovative Wastewater Technologies Water Use Reduction 20 – 30%

Waterless Urinals and Composting/Waterless Toilets http://www.aventer.com/toilets/images/t3.jpg http://www.magic-tec.com/magic_ur.html

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

Example of Natural Ventilation www.thedalles.k12.or.us/.../ sld018.htm

Renewable Energy http://www.power-technology.com

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

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

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

Recycled and Rapidly Renewable Materials http://www.eps.or.kr http://www.franksupply.com

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

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

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

Example of Daylighting csep1.phy.ornl.gov/ CSEP/PT/NODE37.html

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

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

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

Incentives Sell energy back to the utility company Tax breaks on new technologies Rebates, grants and loans

Sources Questions? Ray Yunk, Professor of Architectural Engineering Dustin Schafer, Instructor of Architectural Engineering www.usgbc.org Questions?