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LEED
LEED Applicable Sustainable Site Development
Strategies for Civil Engineers
Presented By: Rachael Green LEED AP, GA-C
David Rodriguez, LEED AP
THE USGBC
U.S. GREEN BUILDING COUNCIL
EngineersInterior DesignersBuilding TenantsProperty ManagersArchitectsPlanners Building Owners Code OfficialsUtility ManagersProduct Manufacturers Landscape Architects Financial PlannersNonprofit LeadersFederal, State and Local Governments
Chapter Mission To promote a sustainable, healthy and prosperous built environment in the North Texas area through training, education and outreach.
THE USGBC
USGBC is a community of leaders working to transform the way buildings and communities are designed, built, and operated.
USGBC provides top quality educational offerings on green design, construction, and operations for professionals from all sectors of the building industry.
EDUCATION & ADVOCACY
SUSTAINABLE DEVELOPMENT
Meeting the needs of the present without compromising the ability of future generations to meet their own needs.
From the USGBC:
Green has become the shorthand term for the concept of sustainable development as applied to the building
industry. Also known as high-performance buildings, green buildings are intended to be environmentally responsible, economically profitable, and healthy
places to live and work.
12% of Potable Water Consumption
39% of CO2 Emissions
65% of Waste Output
71% of Electricity Consumption
WHAT ARE THE IMPACTS OF BUILDINGS?
39% of Energy Consumption
30% of Raw Materials Use
• Who uses the power?
• Operating buildings consume electrical power at an amazing rate
• At the current rate, U.S. is projected to need 1,300 to 1,900 new power plants over the next 20 years – 1 per week.
RESIDENTIAL BUILDING ENVIRONMENTAL IMPACTS
What about residential?
Our housing stock in the United States consumes roughly 20% of our primary energy and raw materials
Lower Operating Costs (8-9%) • Energy Savings 30%• Water Use Savings 30-50%• Waste Cost Savings 50-90%• Carbon Savings 35%
Improved Indoor Air Quality
Improvement in ROI (6.6%)
Increase in occupancy (3.5%)
Rent increase (3%)
Increased Value (7.5%)
Reduced Liability
Improved Risk Management
Enhanced Recruitment
Reduced Absenteeism
Improved Morale
Include Enhanced Productivity
Retail = increases in sales per square foot
Factories = increased production
Offices = 2-16% increased production
Hospitals = earlier discharge rates
Schools = 20% better test performance
Immediate Advantages of Green Buildings
LONG-TERM ADVANTAGES OF GREEN BUILDINGS
• Improved air quality
• Potential for credit in state implementation plan
• Improved public health
• Reduced urban heat island effect
• Reduced peak demand for electricity
• Reduced utility costs for businesses and consumers
• Economic development opportunity
• Reduced demand for potable water
• Creation of green-collar jobs
Increase in construction cost 2-4% 1 2 3 4 5 6 7 8 9 10
Savings = $50-75/sf over 20 years
Potential for 10,000 sf building over 20 years: Savings of $5 to $7.5 million in operating costs
Certified
Silver
Gold
Platinum
The Cost of Green Building
LEED
LEADERSHIP inENERGY andENVIRONMENTALDESIGN
a system for certifying buildingDESIGN, CONSTRUCTION, & OPERATIONS
Credits are awarded for different categories of efficiency and design.
Scores are tallied for different aspects of efficiency and design in appropriate categories.
LEED assesses in detail:
1. Site Planning2. Water Management3. Energy Management4. Material Use5. Indoor Environmental Air Quality6. Innovation & Design Process
LEED CATEGORIESLEED CATEGORIES
Site planning
Water efficiency
Energy efficiency
Conservation of materials
Indoor environmental quality
Innovative design
LEVELS OF LEED® CERTIFICATION
Level % of Points Points Needed Certified 40% 26-32 points
Silver 50% 33-38 points
Gold 60% 39-51 points
Platinum 80% 52-69
Various LEED rating systems
•New Construction and Major Renovation•Multiple Buildings and On-Campus Buildings•Core and Shell•Commercial Interiors•Homes •Neighborhood Development•Retail, Laboratories, Schools•Healthcare (under development)
Operations
•Existing Buildings (Operations and Maintenance)
LEED BUILDING TYPES
NORTH TEXAS LEED CERTIFIED BUILDINGS
Jack Evans Police Headquarters 350,000 square feet
LEED Silver certified December 2005 40% energy use reduction, $246,000 in annual savings expectedRedeveloped brownfield site100% of building irrigation is from collected and stored rain water50% reduction of potable water use 80% of construction waste diverted from the landfill25% regionally manufactured building materials
Energy load reduction strategiesHigher wall insulation valuesReflective roof materialOccupancy sensorsPassive heat-gain reduction strategies
NORTH TEXAS LEED CERTIFIED BUILDINGS
Northwest Service Center, Dallas92,271 square feetmaintenance complex
LEED Gold certified May 2007
Brownfield siteVehicle wash facility wastewater reclamation system: 68.4% reduction in water useWater saving devices include waterless urinals and low flow fixtures 56% recycled-content materials10,000 square yards of recycled-content concrete and 646 tons of recycled steel 80% of the project’s materials were manufactured within 500 miles of the project site
NORTH TEXAS LEED CERTIFIED BUILDINGS
Pat Lobb Toyota, McKinney50,000 square feetauto dealership
Certified LEED Silver 2007
5% construction premium3-5 year paybackSustainable site orientationGreen wall absorbs heatCool roof designRecycled materials80% construction waste recycledGraywater reuse system
NORTH TEXAS LEED CERTIFIED BUILDINGS
Fire Station #7, Denton15,000 square feetfire station
Certified LEED Gold 2007
35% energy use reduction50% water use reductionGeothermal heat pumpsExtensive use of daylightingRainwater harvesting system98% of materials manufactured within 500 miles
NORTH TEXAS LEED CERTIFIED BUILDINGS
Heather’s Home2,000 square feet residence near Weatherford
Certified LEED Platinum 2007
Passive solar designHighly reflective roof designSolar water heating systemRainwater harvesting systemProjected average monthly heating/cooling bill: $15.00
DALLAS
Dallas Green Building Program
• All City-funded buildings LEED Gold
• New program for all development:
• Phase 1
Effective October 2009
Focuses on energy and water efficiency
• Phase 2
Effective October 2011
Requires certification through accepted green building standard
• Incentives now being developed
FRISCO
GoalsEnergy efficiency Mitigation of urban heat island effectCreation of pedestrian-friendly environmentConstruction waste management and recyclingWater conservation and education
Residential green building programAdopted in 2005Standards for energy efficiency, water efficiency, waste recycling and indoor air quality of homesMinimum standard of energy efficiency for homes based on EPA’s Energy Star
Commercial green building program Adopted in 2006 Landscaping and cool roof standards
PLANO
LEED Certification Policy 430.000Adopted Jan. 8, 2007
LEED Certification points will be prioritized based on their ability to provide future energy savings, water conservation, waste reduction, and improved indoor air quality. Key factors to incorporate into the design include:1. Use of passive solar energy2. Natural lighting (day lighting) and adjustable lighting systems3. Highly reflective roof and building exterior4. Indoor Air Quality (low VOC materials and ventilation) 5. HVAC energy performance and efficiency6. Use of on-site renewable energy 7. Waste minimization (recycling, reducing, reusing)8. Water reclamation and conservation (rainwater harvesting, use of gray water, soil
amendment, native or adapted landscape material, efficient irrigation system)
ROWLETT
Residential Green Building Program – Energy Star• Adopted February 5, 2008 – Ordinance 004-08• Standards for energy efficiency, water efficiency, waste
recycling and indoor air quality of homes• Minimum standard of energy efficiency for homes based
on a HERS score of 83 or below
TOWN OF FAIRVIEW
Residential Green Building Program – Energy Star• Adopted May 4, 2004• Standards for energy efficiency, water efficiency, waste
recycling and indoor air quality of homes• Minimum standard of energy efficiency for homes based on a
HERS score of 83 or below
RESOURCES
• For more information on LEED or the USGBC www.usgbc.org
• Local USGBC Chapter www.usgbcnorthtexas.orgContact Cindy Stanley, Chapter Coordinator at214-571-9244 or [email protected]
• Public Citizen www.citizen.org
• American Institute of Architects www.aia.org
• EPA’s Energy Star Program www.energystar.gov • Build-Smarter.com www.build-smarter.com
• Building Green.com www.buildinggreen.com
• Whole Building Design Guide www.wbdg.org
• City of Austin Green Builders Sourcebookhttp://www.ci.austin.tx.us/greenbuilder/srcbk_6-5.htm
LEED
LEED Applicable Sustainable Site Development
Strategies for Civil Engineers
Presented By: Rachael Green LEED AP, GA-C
David Rodriguez, LEED AP
LEED Rating System
New Construction
and
Major Renovations
v2.2
LEED Credit Checklist (NC)Project ChecklistSustainable Sites 14 Possible PointsPrereq 1 Construction Activity Pollution Prevention RequiredCredit 1 Site Selection 1Credit 2 Development Density & Community Connectivity 1Credit 3 Brownfield Redevelopment 1Credit 4.1 Alternative Transportation, Public Transportation Access 1Credit 4.2 Alternative Transportation, Bicycle Storage & Changing Rooms 1Credit 4.3 Alternative Transportation, Low Emitting & Fuel Efficient Vehicles 1Credit 4.4 Alternative Transportation, Parking Capacity 1Credit 5.1 Site Development, Protect or Restore Habitat 1Credit 5.2 Site Development, Maximize Open Space 1Credit 6.1 Stormwater Design, Quantity Control 1Credit 6.2 Stormwater Design, Quality Control 1Credit 7.1 Heat Island Effect, Non-Roof 1Credit 7.2 Heat Island Effect, Roof 1Credit 8 Light Pollution Reduction 1
LEED Credit Checklist (NC)
Water Efficiency 5 Possible PointsCredit 1.1 Water Efficient Landscaping, Reduce by 50% 1Credit 1.2 Water Efficient Landscaping, No Potable Use or No Irrigation 1Credit 2 Innovative Wastewater Technologies 1Credit 3.1 Water Use Reduction, 20% Reduction 1Credit 3.2 Water Use Reduction, 30% Reduction 1
LEED Credit Checklist (NC)
Energy & Atmosphere 17 Possible PointsPrereq 1 Fundamental Commissioning of the Building Energy Systems RequiredPrereq 2 Minimum Energy Performance RequiredPrereq 3 Fundamental Refrigerant Management RequiredCredit 1 Optimize Energy Performance 1–10(2 points mandatory for LEED for NC projects registered after June 26, 2007)Credit 2 On-Site Renewable Energy 3Credit 3 Enhanced Commissioning 1Credit 4 Enhanced Refrigerant Management 1Credit 5 Measurement & Verification 1Credit 6 Green Power 1
LEED Credit Checklist (NC)
Materials & Resources 13 Possible PointsPrereq 1 Storage & Collection of Recyclables RequiredCredit 1.1 Building Reuse, Maintain 75% of Existing Walls, Floors & Roof 1Credit 1.2 Building Reuse, Maintain 95% of Existing Walls, Floors & Roof 1Credit 1.3 Building Reuse, Maintain 50% of Interior Non-Structural Elements 1Credit 2.1 Construction Waste Management, Divert 50% from Disposal 1Credit 2.2 Construction Waste Management, Divert 75% from Disposal 1Credit 3.1 Materials Reuse, 5% 1Credit 3.3 Materials Reuse, 10% 1Credit 4.1 Recycled Content, 10% (post-consumer + 1/2 pre-consumer) 1Credit 4.2 Recycled Content, 20% (post-consumer + 1/2 pre-consumer) 1Credit 5.1 Regional Materials, 10% Extracted, Processed & Manufactured Regionally 1Credit 5.2 Regional Materials, 20% Extracted, Processed & Manufactured Regionally 1Credit 6 Rapidly Renewable Materials 1Credit 7 Certified Wood 1
LEED Credit Checklist (NC)
Indoor Environmental Quality 15 Possible PointsPrereq 1 Minimum IAQ Performance RequiredPrereq 2 Environmental Tobacco Smoke (ETS) Control RequiredCredit 1 Outdoor Air Delivery Monitoring 1Credit 2 Increased Ventilation 1Credit 3.1 Construction IAQ Management Plan, During Construction 1Credit 3.2 Construction IAQ Management Plan, Before Occupancy 1Credit 4.1 Low-Emitting Materials, Adhesives & Sealants 1Credit 4.2 Low-Emitting Materials, Paints & Coatings 1Credit 4.3 Low-Emitting Materials, Carpet Systems 1Credit 4.4 Low-Emitting Materials, Composite Wood & Agrifiber Products 1Credit 5 Indoor Chemical & Pollutant Source Control 1Credit 6.1 Controllability of Systems, Lighting 1Credit 6.2 Controllability of Systems, Thermal Comfort 1Credit 7.1 Thermal Comfort, Design 1Credit 7.2 Thermal Comfort, Verification 1Credit 8.1 Daylight & Views, Daylight 75% of Spaces 1Credit 8.2 Daylight & Views, Views for 90% of Spaces 1
LEED Credit Checklist (NC)
Innovation & Design Process 5 Possible PointsCredit 1.1 Innovation in Design 1Credit 1.2 Innovation in Design 1Credit 1.3 Innovation in Design 1Credit 1.4 Innovation in Design 1Credit 2 LEED Accredited Professional 1
Project Totals 69 Possible Points
Certified 26–32 points Silver 33-38 points Gold 39–51 points Platinum 52–69 points
Overview of Watters Creek at Montgomery Farm
Aerial of Watters Creek
Credit 1 Site Selection
Prerequisite 1 Construction Activity Pollution Prevention
Sustainable Sites
Who is Responsible? (Superintendent during construction and Civil Engineer during Design (provide Names and contact information)
This credit Must be achieved since it is a prerequisite.
Who will provide the Narrative? Civil Engineer
There will be drawings required for submittal.
SWPPP
Who is Responsible? Architect, landscape architects, ecologists, environmental engineers and civil engineers (provide Names and contact information)
There could be a small design time impact due to the research required.
There should be little additional Design Fees due to the research.
Who will provide the Narrative and project data? Civil Engineer
Sustainable Sites
● Perform a site survey to inventory the important environmental characteristics, including wetlands, sloped areas, unique habitat areas and forested areas. ● Higher first costs may be encountered due to site survey and selection activities. ● Increased property values can offset these costs in the future. ● Do not develop buildings, hardscape, roads or parking areas on portions of sites that meet any one of the following criteria:
*** Prime Farmland*** Previously undeveloped land whose elevation is lower than 5 feet above the elevation of the 100-year flood as defined by FEMA*** Land that is specifically identified as habitat for any species on Federal or State threatened or endangered lists*** Within 100 feet of any wetlands and isolated wetlands or areas of special concern identified by state or local rule OR within setback distances from wetlands.*** Previously undeveloped land that is within 50 feet of a water body, defined as seas, lakes, rivers, streams and tributaries which support or could support fish, recreation or industrial use*** Land which prior to acquisition for the project was public parkland, unless land of equal or greater value as parkland is accepted in trade by the public landowner (Park Authority projects are exempt).
● Zoning requirements of the local municipality and the community master plan should be integrated to the greatest extent possible.
Credit 1 Site Selection
Erosion Control PlanSWPPP PlanSite boundary consistent
Who is Responsible? Architect, and civil engineers
The initial Cost Impact will be determined by the site selection/location.
There could be a small design time impact due to the research required.
There should be little additional Design Fees due to the research.
Who will provide the Narrative if there are any special circumstances or non-standard compliance paths taken by the project?
Who will provide the project date with calculations?
Who will provide the site vicinity drawing with information required?
If going for option 2 (Community Connectivity) who will do the research?
This credit is an owner and design team decision.
Sustainable Sites
Credit 2 Development Density and Community Connectivity
Credit 2 Development Density and Community Connectivity
Sustainable Sites
● Research will need to performed for this credit. ● The general approach for achieving this credit is to give preference to sites within an existing urban area. ● Sites with redevelopment plans that will achieve the required development density by the completion of the project should not be excluded from consideration.● This credit can be achieved by choosing to develop a site where community revitalization is occurring provided the required development density or basic services adjacency is in place or in construction by the project’s completion.● For the second option – Community Connectivity Only count those services for which there is pedestrian access between the service and the project. (Pedestrian access is assessed by confirming that pedestrians can walk to the services without being blocked by walls, highways, or other barriers.) No service may be counted more than once with the exception of restaurants which can be counted twice. ● Proximity is determined by drawing a ½ mile radius around the main building entrance on a site map and counting the services within that radius.
Sustainable Sites
Who is Responsible? Architect, and civil engineers
There could be additional time impacts due to the potentially extensive effort required to characterize the contamination, evaluate cleanup options and perform cleanup activities.
There should be little additional Design Fees due to the research.
Who will provide the Narrative?
Who will provide the project date required by the EPA?
This credit is an owner decision.
Credit 3 Brownfield Redevelopment
Sustainable Sites
Credit 3 Brownfield Redevelopment
● Develop on a site documented as contaminated (by means of an ASTM E1903-97 Phase II Environmental Site Assessment or a local Voluntary Cleanup Program) OR on a site defined as a Brownfield by a local, state or federal government agency.● The initial Cost Impact could be costly due to the potentially extensive effort required to characterize the contamination, evaluate cleanup options and perform cleanup activities. ● Substantially lower property costs can offset remediation costs and time delays. The cost for remediation varies by site and region. ● Research with local municipalities and landowners for below market purchase prices for Brownfield real estate. ● Obtain tax incentives by meeting the locally applicable requirements of EPA Brownfield tax credits. ● Coordinate any remediation activities with contractor and subcontractors to ensure the scheduling will not be affected. Identify on SWPPP any areas for staging during the remediation efforts.
Credit 4.1 Alternative Transportation – Public Transportation Access
Sustainable Sites
Who is Responsible? Architect, and civil engineers
Locate project within ½ mile of an existing or planned and funded commuter rail, light rail, or subway stations
Research will need to be done to identify the above information, or if the site is located within ¼ mile of one or more stops for tow or more public or campus bus lines usable by the building occupants.
There could be a small time impacts due to research required but not much.
There should be no to little additional Design Fees due to the research.
Who will provide the Narrative if required?
Who will provide the project date and drawings?
This credit is an owner decision.
Sustainable Sites
Credit 4.1 Alternative Transportation – Public Transportation Access
● The owner should provide incentives such as transit passes to encourage occupants to use mass transit. ● If a light rail or subway station is sited, planned and funded at the time the project is completed, it satisfies the intent of this credit.● Institute a comprehensive transportation management plan that demonstrates a quantifiable reduction in personal automobile use the implementation of multiple alternative options. This will help reduce the amount of space required for parking and Stormwater management as well as assisting in the possibility of achieving a LEED Innovation credit point for all SS 4 credits. This can also help reduce the first costs during construction with a reduction of materials, lead times and additional up-front costs occurred during the design and construction phases.
Credit 4.4 Alternative Transportation – Parking Capacity
Who is Responsible?
Is this credit going to be attempted?
Who will provide the Narrative if required?
Who will provide the project date and drawings?
This credit is an owner and design team decision.
● If parking demand is expected to be less than that required by local codes, consider seeking a variance with the appropriate authorities to provide less parking. - Who will be responsible if needed? ● If parking capacity is reduced the cost of land added for parking as well as infrastructure needed to support vehicles. Reduction parking areas can decrease the amount of impervious surfaces on a site which may result in reduced Stormwater charges. ● “Preferred Parking” refers to the parking spots that are closest to the main entrance of the project (exclusive of spaces designated for handicapped) or parking passes provided at a discounted price.● Provide appropriate signage at carpool or vanpool locations and include in the construction documents.
Sustainable Sites
Credit 4.4 Alternative Transportation – Parking Capacity
Sustainable Sites
Three optionsOption 1 – Non Residential
Size parking capacity to not exceed minimum local zoning requirements, AND, provide preferred parking for carpools or vanpools for 5% of the total provided parking spaces.
OROption 2 – Non Residential
For projects that provide parking for less than 5% of the FTE building occupants:Provide preferred parking for carpools or vanpools, marked as such, for 5% of the total provided parking spaces.
OROption 3 – Residential
Size parking capacity to not exceed minimum local zoning requirements, AND, provide infrastructure and support programs to facilitate shared vehicle usage such as carpool drop-off areas, designated parking for vanpools, or car-share services, ride boards, and shuttle services to mass transit.
OROption 4 – All
Provide No new parking
Credit 5.1 Site Development – Protect or Restore Habitat
Who is Responsible? Architect, Civil Engineer and Landscape Architect.
Is this credit going to be attempted?
There will be a Life Cycle Cost Impact.
There will be additional Design Fees
Who will provide the Narrative if required?
Who will provide the project date and drawings?
This credit is an owner, design team and contractor decision.
Sustainable Sites
Credit 5.1 Site Development – Protect or Restore Habitat
Sustainable Sites
● There could be a large initial Cost Impact. These impacts can potentially reduce maintenance costs over their lifetime. But the trees and vegetation may be costly to purchase. There may be other additional costs such as soil remediation and water elements. Shade trees located close to the facility may decrease cooling loads and reduce energy expenditures.● Consider stacking the building program, tuck-under parking and sharing facilities with neighbors.● Prohibit plant materials listed as invasive or noxious weed species. Native/adapted plants should be used. ● The contractor will need to be involved during the construction process to establish clearly marked construction and disturbance boundaries as well as lay down, recycling , disposal and staging areas. Infrastructure construction will need to be coordinated as well.●“Greenfield” sites are those that are not previously developed or graded and remain in a natural state. Previously developed sites are those that previously contained buildings, roadways, parking lots or were graded or altered by direct human activities.● Use the site survey that was done for SS credit 1. ● For urban projects earning SS c2, consider installing a vegetated roof. Include the structural engineer and landscape architect.
Credit 5.2 Site Development – Maximize Open Space
Sustainable Sites
Who is Responsible? Architect, Civil Engineer and Landscape Architect.
Is this credit going to be attempted?
There could be additional Design Fees depending on the option taken.
Who will provide the Narrative?
Who will provide the project date and drawings? Landscape, Civil and Architectural drawings will be required.
This credit is an owner and design team decision.
Credit 5.2 Site Development – Maximize Open Space
Sustainable Sites
● There may not be any initial cost impacts.● Reducing the building footprint by building vertical may add a small percentage to first cost depending on size and use. A smaller footprint is more resource-efficient and can result in reduced materials and energy costs as well as operations and maintenance costs. Consider a vegetated roof and/or underground parking. ● Consider issues such as building orientation, daylighting, heat island effects, Stormwater generation, significant vegetation, existing green corridors, and other sustainable building issues.● Wetlands or naturally designed ponds may count as open space if the side slope gradients average 1:4 (vertical: horizontal) or less and are vegetated.● Use the site survey from SSc1. ● There are 3 options to achieve this credit.
Sustainable Sites
Who is Responsible? Architect and Civil Engineer.
Is this credit going to be attempted?
There may costly initial cost impacts. This will depend on the condition of the project site, location, region and climate zone.
There will be a Life Cycle Cost Impact.
There could be additional Design Fees.
Who will provide the Narrative?
Who will provide the project date and drawings?
This credit is an owner and design team decision.
Credit 6.1 Stormwater Design – Quantity Control
Credit 6.1 Stormwater Design – Quantity Control
Sustainable Sites
● One way to reduce the Stormwater runoff volume is to reduce the amount of impervious area. Specify vegetated roofs and pervious paving. If using pervious paving consider ADA impacts.● Water detention and retention features require cost for design, installation and maintenance. These features can also add significant value as site amenities . Smaller Stormwater collection and treatment systems lessen the burden on municipalities for maintenance and repair, resulting in a more affordable and stable tax base.● If considering collection and reuse for non-potable applications verification will need to be made with the local municipality. ● Capturing and reusing Stormwater runoff for landscape is also a consideration.
Credit 6.2 Stormwater Design – Quality Control
Sustainable Sites
Who is Responsible? Architect and Civil Engineer
Is this credit going to be attempted?
There may be additional cost impacts.
There will be a Life Cycle Cost Impact.
There could be additional Design Fees depending on design strategies.
Who will provide the Narrative if required?
Who will provide the project date and drawings?
This credit is an owner and design team decision.
Credit 6.2 Stormwater Design – Quality Control
Sustainable Sites
● This credit may be achieved using either non-structural or structural Stormwater management measures or a combination of the two.● Non-Structural and Structural Measures would be:
Rain gardens, vegetated swales, disconnection of imperviousness, and rainwater recycling. Anything that promotes infiltration and limits runoff. As long as you capture and treat runoff by allowing it to naturally filter into the soil and vegetation, manhole treatment devices such as oil/water separators, pervious pavement or grid pavers, smaller building footprint, stormwater harvesting for reuse in irrigation and/or buildings, Green roofs, bioswales, vegetated filter strips, retention ponds, clustering development to reduce paved surfaces (roads, sidewalks etc.)
● Remember you must remove 80% Total Suspended Solids (TSS).● Water that is infiltrated on-site is assumed to be 100% treated for the purposes of this credit.● If considering collection and reuse for non-potable applications verification will need to be made with the local municipality. ● Capturing and reusing stormwater runoff for landscape is also a consideration.● If using grid pavers consider the impacts on ADA requirements.
Credit 6.2 Stormwater Design – Quality Control
Sustainable Sites
● Alternative surfaces = vegetated roofs, pervious pavement or grid pavers
● Non-Structural techniques = rain gardens, vegetated swales, disconnection of imperviousness, rainwater recycling
● Sustainable Design Strategies = low impact development, environmental sensitive design.
Porous Pavement
Grass Pavers
Cistern: An above or below ground storage system that collects, stores and distributes run-off of rain or snow from roofs
Narrow Streets
No Curb & Gutters
Credit 1.1 Water Efficient Landscaping – Reduce by 50%
Credit 1.2 – No Potable Water Use or No Irrigation
Credit 2 Innovative Wastewater Technologies
Credit 3.1 Water Use Reduction – 20% Reduction
Credit 3.2 Water Use Reduction – 30% Reduction
Water Efficiency
•Coordinate any items from site modifications with the Landscape Architects and Architects.
Materials and Resources
Credit 4.1 Recycled Content – 10% (post-consumer + ½ pre-consumer)Credit 4.2 Recycled Content – 20% (pre-consumer + ½ pre-consumer)
● This credit is based on the total value of the materials on the project. Mechanical, electrical and plumbing components and specialty items such as elevators shall not be included in this calculation. Only include materials permanently installed in the project. Furniture may be included, providing it is included consistently in MR credits 3-7. This cost does not include labor and equipment.● The recycled content value of a materials assembly shall be determined by weight. The recycled fraction of the assembly is then multiplied by the cost of assembly to determine the recycled content value.● All recycled content shall be defined in accordance with the International Organization for Standardization document, ISO14021 – Environmental labels and declarations – Self-declared environmental claims (Type II environmental labeling.● Post-Consumer materials are defined as waste material generated by households or by commercial, industrial and institutional facilities in their role as end-users of the product, which can no longer be used for its intended purposes.● Pre-Consumer material is defined as material diverted from the waste stream during the manufacturing process. Excluded in reutilization of materials such as rework, regrind or scrap generated in a process and capable of being reclaimed within the same process that generated it.
Materials and Resources
Credit 4.1 Recycled Content – 10% (post-consumer + ½ pre-consumer)Credit 4.2 Recycled Content – 20% (pre-consumer + ½ pre-consumer)
● Recycled content goals should be established during the design phase. ● Research will be required to determine the percentages of recycled content. ● Run preliminary calculations during the design phase as soon as a project budget is available in order to set appropriate recycled content targets.● Some materials may require research by design and construction teams to achieve higher levels of recycled content to verify which models of a certain product line feature the desired recycled content like carpet and ceramic tile.● The project team will need to work with the subcontractors and suppliers to verify availability of materials.● Contractors should run preliminary calculations based on the construction budget or schedule of values during the pre-construction phase. ● The requirements for this credit must be from a reliable, verifiable source such as the manufacture MSDS sheets, product literature or letter on letterhead.● For steel products where no recycled content information is available, assume the recycled content to be 25% post consumer. Many steel products will contain 90% or more recycled content if manufactured by the Electric arc furnace process. ● Fly ash in concrete is a pre-consumer recycled content material and there are additional calculation methods to be used.
Materials and Resources
Credit 5.1 & 5.2 Regional Materials – 10% & 20% Extracted, Processed & Manufactured Regionally
● For this credit regionally manufactured must be assembled as a finished product within a 500 mile radius of the project site. The dos not include on-site assembly, erection or installation of finished components such as structural steel, miscellaneous iron or systems furniture.Requirements for this credit include building materials or products that have been extracted, harvested or recovered as well as manufactured within 500 miles of the project site of the total materials value. If only a fraction of a product or material is extracted, harvested, recovered and manufactured locally, then only that percentage (by weight) shall contribute to the regional value. This cost does not include labor or equipment.● MEP and specialty items such as elevators and equipment shall not be included I this calculation. Furniture may be included as long as it is being used for MR credits 3-7. ● Only include materials permanently installed in the project. ● Project teams should run a preliminary calculation during the design phase as soon as the project budget is available.● During construction verify that the specified local materials are installed and quantify the total percentage of local materials installed.
processing
• Products all need to be manufactured within 500 miles of the job site.
mining
manufacturing
Extracting, Processing and Manufacturing Locations
Added Costs- minimalAdded Lead Times - variesRequired Documentation- takes a while to collect from manufacturers
Innovation & Design Process
Innovation in Design Credits 1.1-1.4.
● The INTENT of this credit is to provide design teams and projects the opportunity to be awarded points for exceptional performance above the requirements set by the LEED-NC Green Building Rating System and/or innovative performance in Green Building categories not specifically addressed by the LEED-NC Green Building Rating System.● Requirements = In writing, identify the intent of the proposed innovation credit, the proposed requirements for compliance, the proposed submittals to demonstrate compliance and the design approach (strategies) that might be used to meet the requirements.● The team must substantially exceed a LEED-NC performance credit such as Energy or water efficiency. Apply strategies or measurements that demonstrate a comprehensive approach and quantifiable environmental and/or health benefits.
Innovation & Design Process
Innovation in Design Credits 1.1-1.4.
● The team must substantially exceed a LEED-NC performance credit such as Energy or water efficiency. Apply strategies or measurements that demonstrate a comprehensive approach and quantifiable environmental and/or health benefits.● These credits could be any of the following:
SSc4 MRc3SSc5.1 MRc4SSc5.2 MRc5SSc7.1 MRc6SSc7.2 MRc7WEc2 MRc8.1WEc3.1 & 3.2 MRc8.2Another innovation credit is to have 30% of the contractors and subcontractors working on the project are Green Advantage Certified at the time of the commencement of construction.
● Additional items could be a green housekeeping plan, organic landscape and maintenance plans, green furniture plan and educational packages.● There is a document on the website (www.usgbc.org) titled Innovation & Design Credit Catalog. This document should be referred to.
Innovation & Design Process
Credit 2 LEED Accredited Professional
Who is Responsible? Design team and Owner. (provide Names and contact information)
Is this credit going to be attempted?
Who will provide the LEEP AP information?
At least one principal participant of the project team shall be a LEED AP.
Contact Information
• Rachael Green, LEED AP
• 214-217-9364
• David Rodriguez, LEED AP
• 214-499-8432
