11 sustainability in construction: a leed primer presented by brandon jones
TRANSCRIPT
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Sustainability in Construction:
A LEED Primer
Presented by Brandon Jones
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About Southface
Non-profit 501-C3 founded in 1978
Mission: Southface promotes sustainable homes, workplaces and communities through education, research, advocacy and technical assistance
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Key Objectives1. Who is the USGBC
What is LEED
Role of the Aggregate Industry in
LEED
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UN I T E D
S T A T E S
GR E E N
B U I L D I N G
C O U N C I L
USGBC
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UN I T E D
S T A T E S
GR E E N
B U I L D I N G
C O U N C I L
Promotes buildings that are: • Environmentally responsible• Profitable• Healthy places to live and work
Coalition of leaders from across the building industry:• 18,403 member companies and organizations• 78 chapters and affiliates across the U.S.
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USGBC Web Resourceswww.USGBC.org
www.usgbcGA.org
www.Greenbuild365.org
www.Southface.org
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LEED
Green Building Rating System
Leeds
Town in Alabama
LEED or Leeds...
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Site
Water Energy
Materials
IEQ
L E E D Leadership in Energy and Environmental Design
LEED is a third-party certification program and the nationally accepted benchmark for the design, construction and operation of high performance green buildings.
LEED promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.
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LEED Rating Systems
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LEED-NC
Atlanta Community Food Bank, LEED NC SilverLEED-NC Program:
• 7 Prerequisites: Non-negotiable• 32 Core Credits: 64 optional points• Innovation Credits: 5 optional bonus points
Levels of Certification:•Certified 26-32 points •Silver 33-38 points•Gold 39-51 points•Platinum 52-69 points
New Construction & Major Renovations
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LEED-NC Point Distribution
Sustainable Sites: 14 pts
Water Efficiency: 5 pts
Energy & Atmosphere: 17 pts
Materials & Resources: 13 pts
IEQ: 15 pts
Innovation & Design: 5 pts
TOTAL: 69 Pts
Credit FormatEach credit identifies:
•Intent•Requirements•Technologies & Strategies
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Sustainable Sites
• Develop appropriate sites• Use existing infrastructure• Preserve natural areas• Reduce need for automobiles• Protect endangered habitats• Restore polluted sites
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Water Efficiency
•In the U.S., about 340 billion gallons of fresh water are withdrawn daily from rivers, streams, & reservoirs
•Water treatment is municipality’s single biggest energy bill (water savings = energy savings)
•Power plants consume 3 gallons of water per kWh produced (energy savings = water savings)
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Energy & Atmosphere
17 possible points
•Buildings consume ~40% of U.S. energy (70% of electricity)
•Fossil fuels produce 3/4 of our energy•Coal power plants emit more fine particulate material
than any other U.S. activity
•Natural gas (CO2), nuclear energy (radiation), and hydroelectric power (habitat disturbance) all have negative impacts on ecological systems
•Efficient buildings reduce pollution & cost and enhance comfort
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Materials & Resources •Construction/Demolition
waste makes up 40% of U.S. waste
•Reuse/Recycling saves production & transportation energy & landfill room
•Salvaged/Recycled content materials minimize the use of finite, declining resources
•Rapidly Renewable resources minimize impact of natural resource consumption for manufacturing
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Indoor Environmental Quality
15 possible points
•Americans spend 90% of their time indoors
•Inside pollutant levels may be 2 to 5 times higher than outdoor levels
•17 million Americans have asthma and 40 million suffer from allergies
•Better IEQ can improve worker productivity more than 15%
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LEED Rating System & Reference Guide
• LEED Rating System – free, but only minimal detail
• LEED Reference Guide – explains each credit in detail
LEED Reference Guide
Version 2.2• Available for purchase • Comprehensive Guide to
individual Credits/Criteria
LEED Rating System • Available in a
downloadable .pdf file from the USGBC website
• Contains credit intent, requirements, submittals and technologies/strategies
• includes the Credit Checklist.
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LEED and the Aggregate Industry
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REMEMBER:
Buildings are Certified……
Products are NOT
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Sustainable Sites Credit 6.1Stormwater Management, Rate & Quantity
Decrease stormwater run-off
Use permeable concrete
OR
Pervious hardscape
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Sustainable Sites Credit 7.1Heat Island Effect, Non-Roof
Use light color hardscaping material such as concrete or gravel
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Materials and ResourcesCredit 4.1 and 4.2Recycled Content, 10% - 20%
Use concrete made with substitute materials such as fly ash
OR
Use asphalt made with recycled asphalt planings, recycled concrete road base, recycled asphalt road base.
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Materials and ResourcesCredit 5.1 and 5.2Local / Regional MaterialsManufactured, Harvested & Extracted
Locally 10% - 20%
Purchase products that were manufactured, harvested and extracted from within 500 miles of the project.
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