Leadership in Energy and Environmental Design v2.0

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Leadership in Energy and Environmental Design v2.0

• Lecture 9

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LEED Green Building Rating System

• US Green Building Council
• Leadership in Energy and Environmental Design
  (LEED)
• US national green building certification
• Consensus-driven broad representation
• Commercial, Interiors, Residential

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Why green rating systems ?

• Definition, guidance, validation
• Leading edge in design construction
• Marketing advantage for all parties
• savings (energy, water, maintenance, wastes,
  productivity)
• Human environmental health
• Risk reduction global local
• Increased value of construction

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Green Building Assessments

• Commercial and residential
• BREEAM
• BEPAC
• Austin Green Builder Program
• Green Building Challenge 2000
• Florida Green Building Coalition

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Green Building Programs Labels - US
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United States Green Building Council

• The LEED Green Building Rating SystemTM is a
  voluntary, consensus-based, market-driven
  building rating system based on existing proven
  technology. It evaluates environmental
  performance from a whole building perspective
  over a buildings life cycle, providing a
  definitive standard for what constitutes a green
  building

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LEED Components

• Prerequisites
• Flexible credit system
• Existing best practice codes
• Four levels of effort / rating
• Performance-based

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LEEDGreen Building Rating System?Version 2.0

• Sections of the Program
• Sustainable Sites 14 Points
• Water Efficiency 5 Points
• Energy Atmosphere 17 Points
• Materials Resources 13 Points
• Indoor Environmental Quality 15 Points
• TOTAL CORE LEED POINTS 64 Points

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Sustainable Sites
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Sustainable Sites ( 14 Points Possible)Section
Breakdown

• Prerequisite 1 Erosion Sedimentation Control
• Credit 1 Site Selection ( 1 Point )
• Credit 2 Urban Redevelopment ( 1 Point )
• Credit 3 Brownfield Redevelopment ( 1 Point )
• Credit 4 Alternative Transportation ( 4 Points
  )
• Credit 5 Reduced Site Disturbance ( 2 Points )
• Credit 6 Stormwater Management ( 2 Points )
• Credit 7 Landscape Exterior Design to reduce
  Heat Islands ( 2 Points )
• Credit 8 Light Pollution Reduction ( 1 Point )

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Water Efficiency
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Water Efficiency ( 5 Points Possible )
Section Breakdown

• Credit 1 Water Efficient Landscaping ( 2 Points
  )
• Credit 2 Innovative Wastewater Technologies ( 1
  Point )
• Credit 3 Water Use Reduction ( 2 Points )

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Energy Atmosphere
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Energy Atmosphere ( 17 Points Possible
)Section Breakdown

• Prerequisite 1 Building Commissioning
• Prerequisite 2 Minimum Energy Performance
• Prerequisite 3 CFC Reduction in HVACR
  Equipment
• Credit 1 Optimize Energy Performance ( 10
  Points )
• Credit 2 Renewable Energy ( 3 Points )
• Credit 3 Additional Commissioning ( 1 Point )
• Credit 4 Elimination of HCFCc and Halons ( 1
  Point )
• Credit 5 Measurement and Verification ( 1 Point
  )
• Credit 6 Green Power ( 1 Point )

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Materials Resources

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Materials Resources (13 Points
Possible)Section Breakdown

• Prerequisite 1 Storage and Collection of
  Recyclables
• Credit 1 Building Reuse ( 3 Points )
• Credit 2 Construction Waste Management ( 2
  Points )
• Credit 3 Resource Reuse ( 2 Points )
• Credit 4 Recycled Content ( 2 Points )
• Credit 5 Local/Regional Materials ( 2 Points )
• Credit 6 Rapidly Renewable Materials ( 1 Point
  )
• Credit 7 Certified Wood ( 1 Point )

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Indoor Environmental Quality
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Indoor Environmental Quality15 Points
PossibleSection Breakdown

• Prerequisite 1 Minimum IAQ Performance
• Prerequisite 2 Environmental Tobacco Smoke
  (ETS)Control
• Credit 1 Carbon Dioxide (CO2)Monitoring ( 1
  Point )
• Credit 2 Increased Ventilation Effectiveness ( 1
  Point )
• Credit 3 Construction IAQ Management Plan ( 2
  Points )
• Credit 4 Low-Emitting Materials ( 4 Points )
• Credit 5 Indoor Chemical Pollutant Source
  Control (1 Point)
• Credit 6 Controllability of Systems ( 2 Points )
• Credit 7 Thermal Comfort ( 2 Points )
• Credit 8 Daylight Views ( 2 Points )

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LEED? Rating SystemSection Summary

• Sustainable Sites
  14 Points
• Water Efficiency
  5 Points
• Energy Atmosphere
  17 Points
• Materials Resources
  13 Points
• Indoor Environmental Quality 15
  Points
• CORE LEED POINTS
  64 Points
• Innovation Credits
  4 Points
• LEED Accredited Professional 1
  Point
• TOTAL LEED POINTS 69 Points

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Barksdale AFB Physical Fitness Facility
LEED v 1.0
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Sustainable Sites (7 Points)

• Landscaping for Erosion Control (1)
• On-site biofiltration
• Reduce Heat Islands (2)
• Landscape trees, light colored surfaces
• Efficient Building Location (1)
• 2 bus routes within ¼ mile
• Alternative Transportation (2)
• Showers, bicycle parking, preferred parking
• Alternative Fueling (1)
• Electric vehicle fueling station

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Energy and Atmosphere (2 Points)

• Building Commissioning
• Design intent, TAB
• Energy Efficiency
• Meet ASHRAE 90.1 - 1989
• Energy Efficiency (1)
• ASHRAE 90.1 1989, insulation, glazing, HVAC
• Waste Heat Recovery (1)
• Heat exchangers pre-heat water

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Materials and Resources (3 Points)

• Elimination of CFCs and Halons
• Renovations only
• Storage and Collection of Recyclables
• Separate room for recycling collection
• Recycled Content Building Materials (1)
• Steel structure, carpet, lockers, partitions,
  running track
• Construction Waste Management (1)
• Metals, concrete, cardboard, cans/bottles
• Occupant Waste Recycling (1)
• Base-wide recycling program

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Indoor Environmental Quality (6 Points)

• Elimination of Asbestos
• Indoor Air Quality/Ventilation
• Smoking Ban
• ASHRAE 55-1992
• Construction IAQ Plan (2)
• Protect and change media in ducts / phasing
• Low VOC Materials (2)
• Paints, sealants, adhesives
• Chemical Storage Areas (1)
• Floor drain, negative pressure, separate exhaust
• Architectural Entryways (1)
• Floor grille at entryway

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Safeguarding Water (3 Points)

• Water Conservation
• Lead in Water
• Water Recovery (1)
• Rainwater harvesting system
• Water-efficient Landscaping (1)
• Native landscape, no irrigation
• Surface Runoff Filtration (1)
• Natural stormwater retention areas
• Improving the Design Process (1)
• LEED Certified Designer
• Total 22 credits Bronze Rating

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