Sustainable Buildings and Green Markets An Engineering Perspective

Sustainable Buildings and Green Markets An Engineering Perspective Presented by: Haven Alford

Overview l Why does it matter l Elements of Sustainable Buildings l Government Application (Green Market Incentives)

Environmental Impact of Buildings (why does it matter? ) US Commercial Buildings Facts: l l l 65. 2% > 36% 30% 136 12% 40% total US electricity consumption total US primary energy use total US greenhouse gas emissions million tons of US construction/demolition waste (about 2. 8 lbs/person/day) of potable water in the US (3 billion tons annually) of raw materials used globally www. usgbc. org

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

LEED Concept and Intent l l l 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: l l Certified Silver Gold Platinum ratings (26 – 32 points) (33 – 38 points) (39 – 51 points) (52 – 69 points)

Why engineers (and you) should care… l Discipline: l MEP Architect/LA Civil Constructor Undefined 28 points 21 11 4 5 41% 30% 16% 6% 7% l Totals 69 points 100% l l

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

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

Waterless Urinals and Composting/Waterless Toilets http: //www. aventer. com/toilets/images/t 3. jpg http: //www. magic-tec. com/magic_ur. html

Energy and Atmosphere l l l Fundamental Building System Commissioning Minimum Energy Performance CFC Reduction in HVAC&R Equipment Optimize Energy Performance Renewable Energy l l l 5 – 10% Additional Commissioning Ozone Protection Measurement and Verification Green Power

Example of Natural Ventilation www. thedalles. k 12. or. us/. . . / sld 018. 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 l l Storage and Collection of Recyclables Building Reuse l l l Construction Waste Management l l Maintaining 75 – 100% of Existing Walls, Floor, and Roof Maintain 100% of the shell/structure and 50% of nonshell/non-structure Divert 50 – 75% from a landfill Resource Reuse l 5 – 10% of materials used are salvaged, refurbished, or reused materials, products and furnishings

Materials and Resources l Recycled Content l l Regional Materials l l 5 – 10% (post-consumer + ½ post-industrial) 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 l l l Minimum IAQ (Indoor Air Quality) Performance Environmental Tobacco Smoke Control Carbon Dioxide Monitoring Ventilation Effectiveness Construction IAQ Management Plan l l During Construction Before Occupancy

Indoor Environmental Quality l Low Emitting Materials l l l Adhesives and Sealants Paints and Coatings Composite Wood Indoor Chemical and Pollutant Source Control l Controllability of Systems l l Perimeter Spaces Non-Perimeter Spaces

Indoor Environmental Quality l Thermal Comfort l l l Compliance with ASHRAE 55 Permanent Monitoring System Daylight and Views l l Daylighting in 75% of spaces Views for 90% of spaces

Example of Daylighting csep 1. phy. ornl. gov/ CSEP/PT/NODE 37. html

Federal Government LEED Applications l l l l 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 l l l l l California Pennsylvania – all new construction Oregon – tax credit New York Maryland – all buildings over 500, 000 ft 2 New Jersey – schools, and voluntary applications Arizona Missouri Wisconsin

Local Government LEED Applications l l l l l 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