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?)

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 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.jpghttp://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

Ray Yunk, Professor of Architectural Engineering

Dustin Schafer, Instructor of Architectural Engineering

www.usgbc.org

Questions?