LEED Credits Rating System (version 2009)

LEED® is a guideline for building solutions established by the USGBC – Products are NOT “LEED certified”, however they can assist in obtaining LEED credit/points for a project.

SS: Sustainable Sites SS

• SS Prerequisite 1: Construction Activity Pollution Prevention
  Required SSp1 Create and implement an Erosion and Sedimentation Control (ESC) Plan for all construction activities associated with the project.
• SS Credit 3: Brownfield Redevelopment
  1 point SSc3 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).
• SS Credit 6.1: Stormwater Design: Quality Control
  1 point SSc6.1 Implement a stormwater management plan that prevents the post-development peak discharge rate and quantity OR protects receiving stream channels from excessive erosion OR that results in a 25% decrease in the volume of stormwater runoff AND that reduces impervious cover, promotes infiltration, and captures and treats the stormwater runoff from 90% of the average annual rainfall using acceptable best management practices (BMPs).
• SS Credit 6.2: Stormwater Design: Quantity Control
  1 point SSc6.2 Implement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall1 using acceptable best management practices (BMPs). BMPs used to treat runoff must be capable of removing 80% of the average annual postdevelopment total suspended solids (TSS) load based on existing monitoring reports.
• SS Credit 9: Tenant Design and Construction Guidelines
  1 point SSc9 Publish an illustrated document that provides tenants with the following design and construction information features to serve as an operational and educational manual for the goals and function of this structure and its effect on the surrounding environment and occupants.

WE: Water Efficiency WE

• WE Credit 1: Water Efficient Landscaping
  2-4 points WEc1.P Reductions shall be attributed to any combination of the following items: Plant species factor, Irrigation efficiency, Use of captured wastewater, Use of recycled wastewater, and Use of water treated and conveyed by a public agency specifically for non-potable uses OR install landscaping that does not require permanent irrigation systems. Temporary irrigation systems used for plant establishment are allowed only if removed within one year of installation.
• WE Credit 1: Water Efficient Landscaping
  2-4 points WEc1 Reductions shall be attributed to any combination of the following items: Plant species factor, Irrigation efficiency, Use of captured rainwater, Use of recycled wastewater, and Use of water treated and conveyed by a public agency specifically for non-potable uses OR Install landscaping that does not require permanent irrigation systems. Temporary irrigation systems used for plant establishment are allowed only if removed within one year of installation.

EA: Energy & Atmosphere EA

• EA Credit 1: Optimize Energy Performance
  1-10 points EAc1 Demonstrate a 10% improvement (NC) or a 5% improvement for renovations compared to the baseline per ASHRAE/IESNA Standard 90.1.2007 OR comply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide for Small Office Buildings 2004 OR comply with the prescriptive measures Advanced Buildings™ Core Performance™ Guide developed by the New Buildings Institute.
• EA Prerequisite 1: Minimum Energy Performance
  Required EAp1 Design the building project to comply with both - the mandatory provisions of ASHRAE/IESNA Standard 90.1-2004 (without ammendments); and the prescriptive requirements or performance requirements (Section 11) of ASHRAE/IESNA Stnadard 90.1-2004 (without amendments).
• EA Prerequisite 2: Minimum Energy Performance
  Required EAp2 Design to meet building energy efficiency and performance as required by ASHRAE/IESNA 90.1-2004 or the local energy code, whichever is more stringent.

MR: Material & Resources MR

• MR Credit 2: Construction Waste Management
  1-2 points MRc2 Recycle, reuse, and/or salvage 50% or 75% (by volume or weight) of any nonhazardous construction, demolition, and land clearing waste.
• MR Credit 1.1: Building Reuse - Maintain Existing Walls, Floor and Roof
  1-3 points MRc1.1 Maintain the existing building structure (including structural floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and non-structural roofing material).
• MR Credit 1.2: Building Reuse - Maintain Existing Interior Non-structural Elements
  1 point MRc1.2 Use existing interior nonstructural elements (e.g., interior walls, doors, floor coverings and ceiling systems) in at least 50% (by area) of the completed building, including additions. If the project includes an addition with square footage more than 2 times the square footage of the existing building, this credit is not applicable.
• MR Credit 3: Materials Reuse
  1-2 points MRc3 Use salvaged, refurbished or reused materials, the sum of which constitutes at least 5% or 10%, based on cost, of the total value of materials on the project. 5% for 1 point and 10% for 2 points.
• MR Credit 4: Recycled Content
  1-2 points MRc4 Use materials with recycled content1 such that the sum of postconsumer2 recycled content plus 1/2 of the preconsumer3 content constitutes at least 10% or 20%, based on cost, of the total value of the materials in the project.
• MR Credit 5: Regional Materials
  1-2 points MRc5 Use building materials or products that have been extracted, harvested or recovered, as well as manufactured, within 500 miles of the project site for a minimum of 10% or 20%, based on cost, of the total materials value. If only a fraction of a product or material is extracted, harvested, or recovered and manufactured locally, then only that percentage (by weight) can contribute to the regional value.
• MR Credit 6: Rapidly Renewable Materials
  1 point MRc6 Use rapidly renewable building materials and products for 2.5% of the total value of all building materials and products used in the project, based on cost. For products made of multiple raw materials the fraction of the assembly that is considered rapidly renewable is determined by weight. That fraction is then applied to the material's cost to determine the rapidly renewable materials cost for that assembly.
• MR Credit 7: Certified Wood
  1 point MRc7 Use of minimum of 50% of wood-based materials and products, which are certified in accordance with the Forest Stewardship Council's (FSC) Principles and Criteria, for wood building components. These components include, but are not limited to, structural framing and general dimensional framing, flooring, sub-flooring, wood doors and finishes.

IEQ: Indoor Environmental Quality IEQ

• IEQ Credit 3: Minimum Acoustical Performance
  1 point IEQc3 Design learning spaces to include sufficient sound-absorptive finishes for compliance with reverberation times requirements as specified in ANSI Standard S12.60-2002, Acoustical Performance Criteria, Design Requirements and Guidelines for Schools. Case 1; Spaces ,20,000 CF, 100% of ceiling areas finished with materials having a Noise Reduction Coefficient (NRC) of 0.70 or higher or equivalent material areas to equal ceiling area on walls, ceiling and furnishing.
• IEQ Credit 3.2: Construction Indoor Air Quality Management Plan: Before Occupancy
  1 point IEQc3.2 Flush-out by supplying a total air volume of 14,000 cu.ft. of outdoor air per sq.ft. of floor area while maintaining an internal temperature of at least 60 degrees F and relative humidity no higher than 60%.OR Air Testing after construction ends and prior to occupancy, using testing protocols consistent with the United States Environmental Protection Agency Compendium of Methods for the Determination of Air Pollutants in Indoor Air and as additionally detailed in the Reference Guide.
• IEQ Credit 4.1: Low-Emitting Materials: Adhesives & Sealants
  1 point IEQc4.1 The VOC content of adhesives and sealants used must be less than the current VOC content limits of South Coast Air Quality Management District (SCAQMD) Rule #1168.
• IEQ Credit 4.2: Low-Emitting Materials: Paints & Coatings
  1 point IEQc4.2 Paints and coatings used on the interior of the building shall comply with the following criteria: 1. Architectural paints, coatings, and primers applied to interior walls and ceilings: Do not exceed the VOC content limits established in Green Seal Standard GS-11, Paints, First Edition, May 20, 1993. 2. Anti-corrosive and anti-rust paints applied to interior ferrous metal substrates not exceed VOC content limit of 250 g/L established in Green Seal Standard GC-03, Anti-Corrosive Paints, Second Edition, January 7, 1997. 3. Clear wood finishes, floor coatings, stains, and shellacs applied to interior elements not exceed VOC content limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rule in effect on January 1, 2004.
• IEQ Credit 4.6: Low-Emitting Materials: Ceilings and Wall Systems
  1 point IEQc4.6 All gypsum board, insulation, acoustical ceiling systems and wall coverings installed in the building interior must meet the testing and product requirements of the California Department of Health Services Standard for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda.
• IEQ Credit 8.1: Daylight and Views: Daylight 75% of Spaces
  1 point IEQc8.1 Document the provision of daylighting to 75% or 90% (Schools ONLY) of interior spaces and 75% or more of the floor area of enclosed spaces in order to apply as part of required percentage.
• IEQ Credit 9: Enhanced Acoustical Performance
  1 point IEQc9 Sound Transmission: design the building shell, classroom partitions, and other partitions to meet the Sound Transmission Class (STC) requirement of at least 35. AND Background Noise: reduce level to 40 dBA or less from HVAC.
• IEQ Credit 10: Mold Prevention
  1 point IEQc10 Project team must achieve IEQ Credit 3.1, 7.1, & 7.2 and provide HVAC systems and controls to limit space RH to 60% or less (both occupied and un-occupied) and develop an ongoing IAQ management program.

ID: Innovation & Design Process ID

• ID Credit 1-1.4: Innovations in Design
  1-4 points IDc1 Provide documentation of each proposed innovation credit, including a description of the achievement, the additional environmental benefits delivered and the performance metrics used to document the additional environmental benefits delivered over the performance period.
• ID Credit 2: LEED Accredited Professional
  1 point IDc2 At least one principal participant of the project team shall be a LEED Accredited Professional (AP).
• ID Credit 3: The School as a Teaching Tool
  1 point IDc3 Design a curriculum based on the high-performance features of the building, and should not just describe the features themselves, but explore the relationship between human ecology, natural ecology, and the building.