green building 101 - fundamentals. goals of the seminar learn the fundamentals of sustainable and...
TRANSCRIPT
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Green Building 101 - Fundamentals
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Goals of the Seminar
Learn the fundamentals of sustainable and green construction
Identify additional mechanical work inherent in green construction
Use green construction to generate additional volume and profit
Separate yourself from competitors by exceeding client expectations
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Sustainability
“Everyone talks about sustainability, but no one knows what it is.”
Dr. Karl-Henrik Robert, founder of the organization The Natural Step
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What is Sustainability?
“Providing for the needs of the present without detracting from the ability to fulfill the needs of the future”
ASHRAE GreenGuide
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Sustainable v. Green
Is a sustainable building a green building?•Footprints
Source: www.politicsonline.com
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Green Construction
What comes to mind when I say ‘Green Building’?
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What is a Green/High-Performance Building?
One that achieves high performance over the full life cycle in the following areas: Minimal energy consumption Minimal atmospheric emissions Minimal discharge of harmful wastes Minimal negative impacts of site
ecosystems Maximum quality of the indoor
environment
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Green Building
Why is Green Building an emerging trend and not just another fad?
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Environmental impact of buildings*
• 65.2% of total U.S. electricity consumption 1
• > 36% of total U.S. primary energy use 2
• 30% of total U.S. greenhouse gas emissions 3
• 136 million tons of construction and demolition waste in the U.S. (approx. 2.8 lbs/person/day) 4
• 12% of potable water in the U.S. 5
• 40% (3 billion tons annually) of raw materials use globally 6
* * Commercial and residentialSource: DOE1,2,3, EPA4, U.S. Geological Service5, Lenssen & Roodman6
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Water
1% is potable 2% is frozen 97% is salt
water
Source: U.S. Geological Service
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Water use
Americans extract approximately 3,700 billion gallons per year more than they return to the aquifers
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The Energy Crisis
Source: Uppsala Hydrocarbon Study Group
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Business Issues – Future Trends (Risk) ASHRAE Improvements
to 90.1
• 90.1 to be 30% more stringent than 2004
• Develop performance based 90.1 (2010)
• Develop a water conservation standard
• Develop a new standard for deconstruction of buildings
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Business Issues – Future Trends (Risk)
90.1
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Business Issues – Future Trends (Risk)
ASHRAE Advanced Energy Guides•Complete All 30%
guides by 2008 winter meeting
•Complete all 50% guides by 2011 winter meeting
•Complete all 70% guides by 2016 winter meeting
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Business Issues - Future Trends (Risk)
ASHRAE Research
•Develop economically viable applications of renewable energy systems that produce:
•25% reduction in conventional energy use (2012 annual meeting)
•35% reduction in conventional energy use (2015 annual meeting)
•50% reduction in conventional energy use (2018 annual meeting)
•Develop baseline data for IEQ (2008 annual meeting
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Ultimate Goal
Create ‘Net Zero Energy Buildings’ (NZEB)
A building that, on an annual basis, draws from outside sources equal or less energy than it produces on site from renewable energy sources.
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Business Issues - Future Trends (Risk)
H. R. 6 – ‘Clean Energy Act of 2007’•Sen. Charles Schumer (D-NY)
•Specifies ASHRAE Standard 90.1 and “future versions”
Energy Policy Acts of 2005, 2007 and Executive Order 13423•Calls for net-zero energy use in federal
facilities by 2030
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It follows………..
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Why is ‘Green’ an Opportunity?
“Clean-tech plays to American’s strength because making things like locomotives lighter and smarter takes a lot of knowledge – not cheap labor.”
Thomas Friedman, ‘The Power of Green’, April 15, 2007 International Herald Tribune
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Sustainability Today
Haven’t we always been employing “green” building principles anyway?
Examples?
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History of sustainability Which civilization made it a point to layout
whole cities to take advantage of passive heating? In what direction did the city streets run?
A. GreeceB. RomeC. EgyptD. PersiaE. Babylonia
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Sustainability
What amazing improvement did the ancient Romans make to Greek architecture so their homes (called heliocaminus, i.e. house furnaces) were far more energy efficient?
A. Used cavity wallsB. Made domed roofsC. Insulated the wallsD. Put transparent mica in the
windowsE. Honeycombed the floor
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SustainabilityWhat clever “green” concept did the Romans utilize in their bathroom layouts?
A. Recycled organics as compostB. Used holding tanks instead of rivers
for disposalC. Used stormwater run-off to flushD. Used aqueducts for flushingE. Used flow control devices to conserve
water
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U. S. Green Building Council (USGBC)
A national, nonprofit organization founded in 1993
“To promote the design and construction of buildings that are environmentally responsible, profitable, and healthy places to live and work.”
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U. S. Green Building Council
Developer and administrator of the LEED® (Leadership in Energy and Environmental Design) Green Building Rating SystemVoluntary, consensus-based national
standard for developing high-performance, sustainable buildings. Pilot program in 1998 Version 2.0 released in 2000 Version 2.2 is current Version 2009 (Due in January)
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LEED® Products LEED-NC: LEED for New Construction and Major
Renovations/Additions• Originally released in 2000
• New release early in 2009
• LEED for Schools
• LEED for Retail (Pilot)
• LEED for Healthcare (under review) LEED-EB: LEED for Existing Buildings: Operation
and Maintenance• Originally released in 2004
• Newest version released on Sept. 1 2008 LEED-CI: LEED for Commercial Interiors
• Originally released in 2004
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LEED® Products LEED-CS: LEED for Core and Shell
• Originally released in 2005 LEED-H: LEED for Homes
• Originally released in 2007 LEED-ND: LEED for Neighborhood
Developments• Originally released in 2007)
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Why Was LEED® Created? Facilitate positive
results for the environment, occupant health and financial return
Define “green” by providing a standard for measurement
Prevent “greenwashing” (false or exaggerated claims)
Source: New York Times
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Why Was LEED® Created? Use as a design guideline Recognize leaders Stimulate green competition Establish market value with
recognizable national “brand” Raise consumer awareness Transform the marketplace! Promote whole-building, integrated
design processes
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Integrated Design
An integrated design produces a cost-effective, high-performance building wherein all systems and components work together to produce overall functionality and environmental performance while meeting the needs of the owner.
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LEED® Certification Performance-based rating system
to measure how “green” or “sustainable” a building has been designed and constructed
Points are earned by complying with environmentally friendly requirements
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LEED®-NC Categories Points divided into six categories
•Site Selection (SS)
•Water Efficiency (WE)
•Energy and Atmosphere (EA)
•Materials and Resources (MR)
•Environmental Quality (EQ)
•Innovative Design (ID)
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LEED®-EB Categories Points divided into six categories
•Site Selection (SS)
•Water Efficiency (WE)
•Energy and Atmosphere (EA)
•Materials and Resources (MR)
•Environmental Quality (EQ)
•Innovation in Operations (IO)
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LEED-NC® Point Distribution
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Proposed 2009 LEED-NC® Point Distribution
110 Points
EQ 15%
MR 14%
ID 10%
EA 35%
WE 10%
SS 26%
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LEED-NC v2.2 versus LEED 2009
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LEED-EB® Point Distribution
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LEED-EB v 2.0 versus Operation and Maintenance
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LEED NC Certification Levels
LEED NC – 7 Prerequisites and 69 Total Points
26
33
39
52
0
10
20
30
40
50
60
Certified Silver Gold P latinum
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LEED-NC 2009 Certification Levels
0
10
20
30
40
50
60
70
80
Certified Silver Gold Platinum
4050
60
80
LEED 2009 – 7 Prerequisites and 110 total points
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LEED-EB: OM Certification Levels
LEED EB – 9 Prerequisites and 92 Total Points
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LEED Online Registration and Certification
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LEED®-NC/EB CreditsSite Selection
Handout 1
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LEED-NC® Point Distribution
Fact:•For NC, 42 of the 69 possible points
are directly related to mechanical systems or mechanical construction. For EB, it is 55 of 92 possible points.
Conclusion:•LEED construction represents a
tremendous opportunity for our industry
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A Commitment to Focus on Opportunity