Leed Ga Credits Overview

Front 1

SS Prerequisite 1: Construction Activity Pollution Prevention

Back 1

1. Create and implement an erosion and sedimentation control plan for all construction activities associated with the project. The plan must conform to the erosion and sedimentation requirements of the 2003 EPA Construction General Permit OR local standards and codes, whichever is more stringent. The plan must describe the measures implemented to accomplish the following objectives:

A. To prevent loss of soil during construction by stormwater runoff and/or wind erosion, including protecting topsoil by stockpiling for reuse.

B. To prevent sedimentation of storm sewers or receiving streams.

C. To prevent pollution of the air with dust and particulate matter.

Front 2

SS Credit 1: Site Selection (1 Point)

Must not develop on:

Back 2

1. Prime farmland.

2. UNDEVELOPED land, less than 5' above 100 year flood plane.

3. Land containing threatened or endangered species.

4. Land within 100' of wetland.

5. UNDEVELOPED land within 50' of lakes, rivers, streams, etc.

6. Prior public park land. (Unless substituted by the owner at another location)

Front 3

SS Credit 2: Development Density and Community Connectivity (5 Points)

Option 1: Development Density

Back 3

1. Previously developed site.

2. Within community with a minimum density of 60,000 sq.ft./acre.

Front 4

SS Credit 2: Development Density and Community Connectivity (5 Points)

Option 2: Community Connectivity

Back 4

1. Previously developed site.

2. Within 1/2 mile of a neighborhood with 10 units/acre.

3. Within 1/2 mile of 10 basic services.

4. Pedestrian access between the building and services.

Front 5

SS Credit 3: Brownfield Redevelopment (1 Point)

OPTION 1:

Back 5

1. Develop on a contaminated site.

Front 6

SS Credit 3: Brownfield Redevelopment (1 Point)

OPTION 2:

Back 6

2. Develop on a site defined as a brownfield.

(projects where asbestos is found and remediated also earn this credit)

Front 7

SS Credit 4.1: Alternative Transportation (6 Points)

OPTION 1:

Back 7

Rail Station, Bus Rapid Transit Station & Ferry Terminal Proximity

1. Locate project within 1/2 mile of existing or planned and funded rapid transit or ferry terminal.

Front 8

SS Credit 4.1: Alternative Transportation (6 Points)

OPTION 2:

Back 8

Bus Stop Proximity

1. Locate the project within 1/4-mile of 1 or more stops for 2 or more bus lines.

Front 9

SS Credit 4.1: Alternative Transportation (6 Points)

OPTION 3:

Back 9

Rideshare Proximity

1. Projects outside the U.S. may locate the project within 1/4-mile of 1 or more stops for 2 or more rideshare options that meet the definition of public transportation and are authorized by the local transit authority if one exists.

Front 10

SS Credit 4.2: Alternative Transportation—Bicycle Storage and Changing Rooms (1 Point)

CASE 1. Commercial or Institutional Projects:

Back 10

1. Provide secure bicycle racks/storage within 200 yards of a building entrance for 5% or more of building users.

2. Provide shower and changing facilities in the building, or within 200 yards of a building entrance, for 0.5% of full-time equivalent (FTE) occupants.

Front 11

CASE 2. Residential Projects:

Back 11

1. Provide covered storage facilities for securing bicycles for 15% or more of building occupants.

Front 12

SS Credit 4.3: Alternative Transportation—Low-Emitting and Fuel-Efficient Vehicles (3 Points)

OPTION 1:

Back 12

1. Provide preferred parking for low-emitting and fuel-efficient vehicles for 5% of the total vehicle parking capacity of the site.

Front 13

SS Credit 4.3: Alternative Transportation—Low-Emitting and Fuel-Efficient Vehicles (3 Points)

OPTION 2:

Back 13

1. Install alternative-fuel fueling stations for 3% of the total vehicle parking capacity of the site.

2. Liquid or gaseous fueling facilities must be separately ventilated or located outdoors.

Front 14

SS Credit 4.3: Alternative Transportation—Low-Emitting and Fuel-Efficient Vehicles (3 Points)

OPTION 3:

Back 14

1. Provide low-emitting and fuel-efficient vehicles for 3% of full-time equivalent (FTE) occupants.

2. Provide preferred parking for these vehicles.

Front 15

SS Credit 4.3: Alternative Transportation—Low-Emitting and Fuel-Efficient Vehicles (3 Points)

OPTION 4:

Back 15

1. One low-emitting or fuel-efficient vehicle must be provided per 3% of FTE occupants, assuming that 1 shared vehicle can carry 8 persons.

2. A vehicle-sharing contract must be provided that has an agreement of at least 2 years.

3. The estimated number of customers served per vehicle must be supported by documentation.

4. A narrative explaining the vehicle-sharing program and its administration must be submitted.

5. Parking for low-emitting and fuel-efficient vehicles must be located in the nearest available spaces in the nearest available parking area.

Front 16

SS Credit 4.4: Alternative Transportation—Parking Capacity (2 Points)

CASE 1. Non-Residential Projects:

Back 16

1. Size parking capacity to meet but not exceed minimum local zoning requirements.

2. Provide preferred parking for carpools or vanpools for 5% of the total parking spaces.

OR

1. For projects that provide parking for less than 5% of full-time equivalent (FTE) building occupants: Provide preferred parking for carpools or vanpools, for 5% of total parking spaces.

OR

1. Provide no new parking.

OR

1. For projects that have no minimum local zoning requirements, provide 25% fewer parking spaces than the applicable standard listed in the 2003 Institute of Transportation Engineers (ITE).

Front 17

SS Credit 4.4: Alternative Transportation—Parking Capacity (2 Points)

CASE 2. Residential Projects:

Back 17

1. Size parking capacity to meet but not exceed minimum local zoning requirements.

2. Provide infrastructure and support programs to facilitate shared vehicle use such as carpool drop-off areas, designated parking for vanpools, car-share services, ride boards and shuttle services to mass transit.

OR

1. Provide no new parking.

Front 18

SS Credit 4.4: Alternative Transportation—Parking Capacity (2 Points)

CASE 3. Mixed Use (Residential with Commercial/Retail) Projects

Back 18

1. Mixed-use buildings with less than 10% commercial area must be considered residential and adhere to the residential requirements in Case 2. For mixed-use buildings with more than 10% commercial area, the commercial space must adhere to non-residential requirements in Case 1 and the residential component must adhere to residential requirements in Case 2.

OR

1. Provide no new parking.

Front 19

SS Credit 5.1: Site Development—Protect or Restore Habitat (1 Point)

CASE 1. Greenfield Sites:

Back 19

Limit all site disturbance to the following parameters:

1. 40 feet beyond the building perimeter and parking garages

2. 10 feet beyond surface walkways, patios, surface parking and utilities less than 12 inches in diameter

3. 15 feet beyond primary roadway curbs and main utility branch trenches

4. 25 feet beyond constructed areas with permeable surfaces that require additional staging areas to limit compaction in the constructed area.

Front 20

SS Credit 5.1: Site Development—Protect or Restore Habitat (1 Point)

CASE 2. Previously Developed Areas or Graded Sites:

Back 20

1. Restore or protect a minimum of 50% of the site (excluding the building footprint)

OR

20% of the total site area (including building footprint), whichever is greater, with native or adapted vegetation

Projects earning SS Credit 2: Development Density and Community Connectivity may include vegetated roof surface in this calculation.

2. Projects with limited landscape opportunities may also donate offsite land in perpetuity, equal to 60% of the previously developed area (including the building footprint), to a land trust within the same EPA Level III Ecoregion identified for the project site.

Front 21

SS Credit 5.2: Site Development—Maximize Open Space
(1Point)

CASE 1. Sites with Local Zoning Open Space Requirements:

Back 21

1. Reduce the development footprint and/or provide vegetated open space within the project boundary such that the amount of open space exceeds local zoning requirements by 25%.

Front 22

SS Credit 5.2: Site Development—Maximize Open Space
(1Point)

CASE 2. Sites with No Local Zoning Requirements:

Back 22

1. Provide a vegetated open space area adjacent to the building that is equal in area to the building footprint.

Front 23

SS Credit 5.2: Site Development—Maximize Open Space
(1Point)

CASE 3. Sites with Zoning Ordinances but No Open Space Requirements:

Back 23

1. Provide vegetated open space equal to 20% of the project site area.

Front 24

SS Credit 5.2: Site Development—Maximize Open Space
(1Point)

ALL CASES:

Back 24

For projects in urban areas that earn SS Credit 2: Development Density and Community Connectivity:

1. Vegetated roof areas can contribute to credit compliance.

2. For projects in urban areas that earn SS Credit 2: Development Density and Community Connectivity, pedestrian-oriented hardscape areas can contribute to credit compliance.

For such projects, a minimum of 25% of the open space counted must be vegetated.
Wetlands or naturally designed ponds may count as open space and the side slope gradients average 1:4 (vertical: horizontal) or less and are vegetated.

Front 25

SS Credit 6.1: Stormwater Design—Quantity Control
(1 Point)

OPTION 1. Design Storms

CASE 1. Sites with Existing Imperviousness 50% or Less

PATH 1

Back 25

1. Implement a stormwater management plan that prevents the post-development peak discharge rate and quantity from exceeding the pre-development peak discharge rate and quantity for the 1 and 2 year, 24 hour design storms.

Front 26

SS Credit 6.1: Stormwater Design—Quantity Control
(1 Point)

OPTION 1. Design Storms

CASE 1. Sites with Existing Imperviousness 50% or Less

PATH 2

Back 26

1. Implement a stormwater management plan that protects receiving stream channels from excessive erosion. The stormwater management plan must include stream channel protection and quantity control strategies.

Front 27

SS Credit 6.1: Stormwater Design—Quantity Control
(1 Point)

OPTION 1. Design Storms

CASE 2. Sites with Existing Imperviousness Greater Than 50%

Back 27

1. Implement a stormwater management plan that results in a 25% decrease in the volume of stormwater runoff from the 2-year 24-hour design storm.

Front 28

SS Credit 6.1: Stormwater Design—Quantity Control
(1 Point)

OPTION 2. Percentile Rainfall Events

CASE 1. Non-Zero Lot Line Projects

Back 28

1. In a manner best replicating natural site hydrology processes, manage onsite the runoff from the developed site for the 95th percentile of regional or local rainfall events using Low Impact Development (LID) and green infrastructure.

Front 29

SS Credit 6.1: Stormwater Design—Quantity Control
(1 Point)

OPTION 2. Percentile Rainfall Events

CASE 2. Zero Lot Line Projects

Back 29

For zero lot line projects located in urban areas with a minimum density of 1.5 FAR, in a manner best replicating natural site hydrology processes, manage onsite the runoff from the developed site for the 85th percentile of regional or local rainfall events using LID and green infrastructure.

Front 30

SS Credit 6.2: Stormwater Design—Quality Control (1 Point)

Back 30

1. Implement a stormwater management plan 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).

2. BMPs used to treat runoff must be capable of removing 80% of the average annual post-development total suspended solids (TSS) load based on existing monitoring reports. BMPs are considered to meet these criteria if:

A. They are designed in accordance with standards and specifications from a state or local program that has adopted these performance standards.

OR

B. There exists infield performance monitoring data demonstrating compliance with the criteria. Data must conform to accepted protocol (TARP) for BMP monitoring.

Front 31

SS Credit 7.1: Heat Island Effect—Nonroof (1 Point)

OPTION 1:

Back 31

1. Use any combination of the following strategies for 50% of the site hardscape (including roads, sidewalks, courtyards and parking lots):

A. Provide shade from the existing tree canopy or within 5 years of landscape installation. Landscaping (trees) must be in place at the time of occupancy.

B. Provide shade from structures covered by solar panels that produce energy used to offset some nonrenewable resource use.

C. Provide shade from architectural devices or structures that have a solar reflectance index2 (SRI) of at least 29.

D. Use hardscape materials with an SRI of at least 29.

E. Use an open-grid pavement system (at least 50% pervious).

Front 32

SS Credit 7.1: Heat Island Effect—Nonroof (1 Point)

OPTION 2:

Back 32

1. Place a minimum of 50% of parking spaces under cover. Any roof used to shade or cover parking must have an SRI of at least 29, be a vegetated green roof or be covered by solar panels that produce energy used to offset some nonrenewable resource use.

Front 33

SS Credit 7.2: Heat Island Effect—Roof (1 Point)

OPTION 1:

Back 33

1. Use roofing materials with a solar reflectance index (SRI) equal to or greater than the values in the table below for a minimum of 75% of the roof surface.

Front 34

SS Credit 7.2: Heat Island Effect—Roof (1 Point)

OPTION 2:

Back 34

1. Install a vegetated roof that covers at least 50% of the roof area.

Front 35

SS Credit 7.2: Heat Island Effect—Roof (1 Point)

OPTION 3:

Back 35

Install high-albedo and vegetated roof surfaces that, in combination, meet the following criteria: See Equation (NC 2009 p.18)

Front 36

SS Credit 8: Light Pollution Reduction (1 Point)

Interior Lighting, OPTION 1:

Back 36

1. Reduce the input power (by automatic device) of all nonemergency interior luminaires with a direct line of sight to any openings in the envelope (translucent or transparent) by at least 50% between 11 p.m. and 5 a.m. After-hours override may be provided by a manual or occupant-sensing device provided the override lasts no more than 30 minutes.

Front 37

SS Credit 8: Light Pollution Reduction (1 Point)

Interior Lighting, OPTION 2:

Back 37

2. All openings in the envelope (translucent or transparent) with a direct line of sight to any nonemergency luminaires must have shielding (controlled/closed by automatic device for a resultant transmittance of less than 10% between 11 p.m. and 5 a.m.).

Front 38

SS Credit 8: Light Pollution Reduction (1 Point)

Exterior Lighting

Back 38

Classify the project under 1 of the following zones and follow all the requirements for that zone:

LZ1: Dark (developed areas within national parks, state parks, forest land and rural areas)

LZ2: Low (primarily residential zones, neighborhood business districts, light industrial areas with limited nighttime use and residential mixed-use areas)

LZ3: Medium (all other areas not included in LZ1, LZ2 or LZ4, such as commercial/ industrial, and high-density residential)

LZ4: High2 (high-activity commercial districts in major metropolitan areas)

LZ2, LZ3 and LZ4 - For LEED project boundaries that abut public rights-of-way, light trespass requirements may be met relative to the curb line instead of the LEED project boundary.

Front 39

WE Prerequisite 1: Water Use Reduction

Back 39

1. Employ strategies that in aggregate use 20% less water than the water use baseline calculated for the building (not including irrigation).

The following fixtures, fittings and appliances are outside the scope of the water use reduction calculation:

Commercial Steam Cookers
Commercial Dishwashers
Automatic Commercial Ice Makers
Commercial (family sized) Clothes Washers
Residential Clothes Washers
Standard and Compact Residential Dishwashers

Front 40

WE Credit 1: Water Efficient Landscaping (2–4 Points)

OPTION 1:

Back 40

1. Reduce by 50% (2 points) - Reduce potable water consumption for irrigation by 50% from a calculated midsummer baseline case or using the month with the highest irrigation demand.

Note: Groundwater seepage that is pumped away from the immediate vicinity of building slabs and foundations may be used for landscape irrigation to meet the intent of this credit. However, the project team must demonstrate that doing so does not affect site stormwater management systems.

Front 41

WE Credit 1: Water Efficient Landscaping (2–4 Points)

OPTION 2:

Back 41

1. No Potable Water Use or Irrigation (4 points) - Meet the requirements for Option 1.

2. Use only captured rainwater, recycled wastewater, recycled graywater or water treated and conveyed by a public agency specifically for nonpotable uses for irrigation.

OR

Install landscaping that does not require permanent irrigation systems. Temporary irrigation systems used for plant establishment are allowed only if removed within a period not to exceed 18 months of installation.

Front 42

WE Credit 2: Innovative Wastewater Technologies (2 Points)

OPTION 1:

Back 42

1. Reduce potable water use for building sewage conveyance by 50% through the use of water-conserving fixtures (e.g., water closets, urinals) or nonpotable water (e.g., captured rainwater, recycled graywater, on-site or municipally treated wastewater).

Front 43

WE Credit 2: Innovative Wastewater Technologies (2 Points)

OPTION 2:

Back 43

1. Treat 50% of wastewater on-site to tertiary standards. Treated water must be infiltrated or used on-site.

Front 44

WE Credit 3: Water Use Reduction (2–4 Points)

Back 44

Employ strategies that in aggregate use less water than the water use baseline calculated for the building (not including irrigation). The minimum water savings percentage for each point threshold is as follows:

(30% - 2 Points) (35% - 3 Points) (40% - 4 Points)

Front 45

EA Prerequisite 1: Fundamental Commissioning of Building Energy Systems

Back 45

The following commissioning process activities must be completed by the project team:

1. Designate an individual as the commissioning authority.
• CxA must have documented commissioning authority experience in at least 2 building projects.
• CxA must be independent of the project design and construction management
• CxA may be a qualified employee or consultant of the owner.
• CxA must report results, findings and recommendations directly to the owner.
• For projects smaller than 50,000 gross square feet (4,600 gross square meters), the CxA may be a qualified person on the design or construction team who has the required experience.

2. The owner must document the owner’s project requirements. The design team must develop the basis of design. The CxA must review these documents for clarity and completeness. The owner and design team must be responsible for updates to their respective documents.

3. Develop and incorporate commissioning requirements into the construction documents.

4. Develop and implement a commissioning plan.

5. Verify the installation and performance of the systems to be commissioned.

6.Complete a summary commissioning report.

7. Commissioning must be completed for HVAC systems, Lighting and daylighting controls, Domestic hot water systems, Renewable energy systems (e.g., wind, solar)

Front 46

EA Prerequisite 2: Minimum Energy Performance

OPTION 1:

Back 46

1. Whole Building Energy Simulation -
Demonstrate a 10% improvement in the proposed building performance rating for new buildings, or a 5% improvement in the proposed building performance rating for major renovations to existing buildings, compared with the baseline building performance rating.

To achieve points using this credit, the proposed design must be compared against a baseline building that complies with Appendix G of Standard 90.1-2007 or USGBC approved equivalent. The default process energy cost is 25% of the total energy cost for the baseline building. If the building’s process energy cost is less than 25% of the baseline building energy cost, the LEED submittal must include documentation substantiating that process energy inputs are appropriate.
For the purpose of this analysis, process energy is considered to include, but is not limited to, office and general miscellaneous equipment, computers, elevators and escalators, kitchen cooking and refrigeration, laundry washing and drying, lighting exempt from the lighting power allowance (e.g., lighting integral to medical equipment) and other (e.g., waterfall pumps).

Regulated (non-process) energy includes lighting (for the interior, parking garage, surface parking, façade, or building grounds, etc. except as noted above), heating, ventilation and air conditioning (HVAC) (for space heating, space cooling, fans, pumps, toilet exhaust, parking garage ventilation, kitchen hood exhaust, etc.), and service water heating for domestic or space heating purposes.

Front 47

EA Prerequisite 2: Minimum Energy Performance

OPTION 2:

Back 47

1. Prescriptive Compliance Path: ASHRAE Advanced Energy Design Guide -

Comply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide appropriate to the project scope, outlined below:

PATH 1. ASHRAE Advanced Energy Design Guide for Small Office Buildings 2004 ( < 20,000 square feet)

PATH 2. ASHRAE Advanced Energy Design Guide for Small Retail Buildings 2006 ( < 20,000 square feet)

PATH 3. ASHRAE Advanced Energy Design Guide for Small Warehouses and Self Storage Buildings 2008
( < 50,000 square feet)

Front 48

EA Prerequisite 2: Minimum Energy Performance

OPTION 3:

Back 48

Prescriptive Compliance Path: Advanced Buildings Core Performance Guide -

1. Comply with the prescriptive measures identified in the Advanced BuildingsTM Core PerformanceTM Guide developed by the New Buildings Institute. The building must meet the following requirements:
A. Less than 100,000 square feet.
B. Comply with Section 1 and 2.

Projects outside the U.S. may use ASHRAE/ASHRAE/IESNA Standard 90.1-2007 Appendices B and D to determine the appropriate climate zone.

Front 49

EA Prerequisite 3: Fundamental Refrigerant Management

Back 49

1. Zero use of chlorofluorocarbon (CFC)-based refrigerants in new base building heating, ventilating, air conditioning and refrigeration (HVAC&R) systems.

2. When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

NOTE: Existing small HVAC units (defined as containing less than 0.5 pounds [0.227 kg] of refrigerant) are not considered part of the base building system and are not subject to the requirements of this prerequisite.

Front 50

EA Credit 1: Optimize Energy Performance (1–19 Points)

OPTION 1:

Back 50

Whole Building Energy Simulation (1–19 points) -

1. Demonstrate a percentage improvement in the proposed building performance rating compared with the baseline building performance rating.

Front 51

EA Credit 1: Optimize Energy Performance (1–19 Points)

OPTION 2

PATH 1:

Back 51

Prescriptive Compliance Path: ASHRAE Advanced Energy Design Guide (1 point) -

1. Comply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide appropriate to the project scope, outlined below.
2. Less than 20,000 square feet.

Front 52

EA Credit 1: Optimize Energy Performance (1–19 Points)

OPTION 2

PATH 2:

Back 52

ASHRAE Advanced Energy Design Guide for Small Retail Buildings 2006 -

1. Less than 20,000 square feet.

Front 53

EA Credit 1: Optimize Energy Performance (1–19 Points)

OPTION 3:

Back 53

Prescriptive Compliance Path: Advanced BuildingsTM Core PerformanceTM Guide (1–3 points) -

1. Comply with the prescriptive measures identified in the Advanced Buildings Core Performance Guide developed by the New Buildings Institute.

2. Less than 100,000 square feet and comply with Sections 1 and 2.

NOTE: The following strategies are addressed by other aspects of LEED and are not eligible for additional points under EA Credit 1:
3.1 —Cool Roofs , 3.8 —Night Venting, 3.13 —Additional Commissioning

Front 54

EA Credit 2: On-site Renewable Energy (1–7 Points)

Back 54

1. Use on-site renewable energy systems to offset building energy costs. Calculate project performance by expressing the energy produced by the renewable systems as a percentage of the building’s annual energy cost and use the table below to determine the number of points achieved.

Front 55

EA Credit 3: Enhanced Commissioning (2 Points)

Back 55

In addition to EA Prerequisite 1:

1. The CxA must conduct, at a minimum, 1 commissioning design review of the owner’s project requirements basis of design, and design documents prior to the mid-construction documents phase and back-check the review comments in the subsequent design submission.

2. The CxA must review contractor submittals applicable to systems being commissioned for compliance with the owner’s project requirements and basis of design. This review must be concurrent with the review of the architect or engineer of record and submitted to the design team and the owner.

3. The CxA or other project team members must develop a systems manual that gives future operating staff the information needed to understand and optimally operate the commissioned systems.

4. The CxA or other project team members must verify that the requirements for training operating personnel and building occupants have been completed.

5. The CxA must be involved in reviewing the operation of the building with operations and maintenance (O&M) staff and occupants within 10 months after substantial completion. A plan for resolving outstanding commissioning-related issues must be included.

Front 56

EA Credit 4: Enhanced Refrigerant Management (2 Points)

OPTION 1:

Back 56

1. Do not use refrigerants.

Front 57

EA Credit 4: Enhanced Refrigerant Management (2 Points)

OPTION 2:

Back 57

1. Select refrigerants and heating, ventilation, air conditioning and refrigeration (HVAC&R) equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change.

Front 58

EA Credit 5: Measurement and Verification (3 Points)

OPTION 1:

Back 58

1. Develop and implement a measurement and verification (M&V) plan consistent with Option D: Calibrated Simulation (Savings Estimation Method 2) as specified in the International Performance Measurement & Verification Protocol (IPMVP)

2. The M&V period must cover at least 1 year of post-construction occupancy.

3. Provide a process for corrective action if the results of the M&V plan indicate that energy savings are not being achieved.

Front 59

EA Credit 5: Measurement and Verification (3 Points)

OPTION 2:

Back 59

1. Develop and implement a measurement and verification (M&V) plan consistent with Option B: Energy Conservation Measure Isolation, as specified in the International Performance Measurement & Verification Protocol (IPMVP).

2. The M&V period must cover at least 1 year of post-construction occupancy.

3. Provide a process for corrective action if the results of the M&V plan indicate that energy savings are not being achieved.

Front 60

EA Credit 5: Measurement and Verification (1 Point)

OPTION 3:

Back 60

1. Meet MPR 6 through compliance Option1: Energy and Water Data Release Form. Projects must register an account in ENERGY STAR’s Portfolio Manager tool and share the project file with the USGBC master account.

Front 61

EA Credit 6: Green Power (2 Points)

OPTION 1:

Back 61

Determine Baseline Electricity Use -

1. Use the annual electricity consumption from the results of EA Credit 1: Optimize Energy Performance.

Front 62

EA Credit 6: Green Power (2 Points)

OPTION 2:

Back 62

Estimate Baseline Electricity Use -

1. Use the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey (CBECS) database to determine the estimated electricity use.

Front 63

MR Prerequisite 1: Storage and Collection of Recyclables

Back 63

1. Provide an easily-accessible dedicated area or areas for the collection and storage of materials for recycling for the entire building. Materials must include, at a minimum: paper, corrugated cardboard, glass, plastics and metals.

Front 64

MR Credit 1.1: Building Reuse—Maintain Existing Walls, Floors and Roof (1–3 Points)

Back 64

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). The minimum percentage building reuse for each point threshold is as shown:

55% - 1 Point, 75% - 2 Points, 95% - 3 Points

2. Hazardous materials that are remediated as a part of the project must be excluded from the calculation of the percentage maintained. If the project includes an addition that is more than 2 times the floor area of the existing building, this credit is not applicable.

Front 65

MR Credit 1.2: Building Reuse—Maintain Interior Nonstructural Elements (1 Point)

Back 65

1. 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.

NOTE: If the project includes an addition with floor area more than 2 times the floor area of the existing building, this credit is not applicable.

Front 66

MR Credit 2: Construction Waste Management (1–2 Points)

Back 66

1. Recycle and/or salvage nonhazardous construction and demolition debris. Develop and implement a construction waste management plan that, at a minimum, identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or comingled. Excavated soil and land-clearing debris do not contribute to this credit. Calculations can be done by weight or volume, but must be consistent throughout. The minimum percentage debris to be recycled or salvaged for each point threshold is as follows:

50% - 1 Point, 75% - 2 Points

Front 67

MR Credit 3: Materials Reuse (1–2 Points)

Back 67

1. 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. The minimum percentage materials reused for each point threshold is as follows:

5% - 1 Point, 10% - 2 Points

NOTE: Mechanical, electrical and plumbing components and specialty items such as elevators and equipment cannot be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

Front 68

MR Credit 4: Recycled Content (1–2 Points)

Back 68

1. Use materials with recycled content1 such that the sum of postconsumer recycled content plus 1/2 of the preconsumer content constitutes at least 10% or 20%, based on cost, of the total value of the materials in the project. The minimum percentage materials recycled for each point threshold is as follows:

10% - 1 Point, 20% - 2 Points

The recycled content value of a material assembly is determined by weight. The recycled fraction of the assembly is then multiplied by the cost of assembly to determine the recycled content value.

NOTE: Mechanical, electrical and plumbing components and specialty items such as elevators cannot be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

Front 69

MR Credit 5: Regional Materials (1–2 Points)

Back 69

1. Use building materials or products that have been extracted, harvested or recovered, as well as manufactured, within a specified distance 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. The minimum percentage regional materials for each point threshold is as follows:

10% - 1 Point, 20% - 2 Points

AND

A. All building materials or products have been extracted, harvested or recovered, as well as manufactured within a 500 mile radius of the project site.

OR

B. Building materials or products shipped by rail or water have been extracted, harvested or recovered, as well as manufactured within a 500 mile total travel distance of the project site using a weighted average determined through the following formula:
(Distance by rail/3) + (Distance by inland waterway/2) + (Distance by sea/15) + (Distance by all other means) ␣ 500 miles

NOTE: Mechanical, electrical and plumbing components and specialty items such as elevators and equipment must not be included in all calculations. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

Front 70

MR Credit 6: Rapidly Renewable Materials (1 Point)

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1. 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. Rapidly renewable building materials and products are made from agricultural products that are typically harvested within a 10-year or shorter cycle.

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MR Credit 7: Certified Wood (1 Point)

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1. Use a minimum of 50% (based on cost) of wood-based materials and products that are certified in accordance with the FSC’s principles and criteria, for wood building components. These components include at a minimum, structural framing and general dimensional framing, flooring, sub-flooring, wood doors and finishes.

NOTE: Include only materials permanently installed in the project. Wood products purchased for temporary use on the project (e.g., formwork, bracing, scaffolding, sidewalk protection, and guard rails) may be included in the calculation at the project team’s discretion. If any such materials are included, all such materials must be included in the calculation. If such materials are purchased for use on multiple projects, the applicant may include these materials for only one project, at its discretion. Furniture may be included if it is included consistently in MR Credits 3, Materials Reuse, through MR Credit 7, Certified Wood.

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IEQ Prerequisite 1: Minimum Indoor Air Quality Performance

CASE 1. Mechanically Ventilated Spaces

OPTION 1:

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1. ASHRAE Standard 62.1-2007 or Non-U.S. Equivalent

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IEQ Prerequisite 1: Minimum Indoor Air Quality Performance

CASE 1. Mechanically Ventilated Spaces

OPTION 2:

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CEN Standards EN 15251: 2007 and EN 13779: 2007 (For Non-US Projects).

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IEQ Prerequisite 1: Minimum Indoor Air Quality Performance

CASE 2. Naturally Ventilated Spaces

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1. Naturally ventilated buildings must comply with ASHRAE Standard 62.1-2007

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IEQ Prerequisite 2: Environmental Tobacco Smoke (ETS) Control

OPTION 1:

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1. Prohibit smoking in the building.
Prohibit on-property smoking within 25 feet (8 meters) of entries, outdoor air intakes and operable windows. Provide signage to allow smoking in designated areas, prohibit smoking in designated areas or prohibit smoking on the entire property.

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IEQ Prerequisite 2: Environmental Tobacco Smoke (ETS) Control

OPTION 2

CASE 1. Non-Residential Projects:

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1. Prohibit smoking in the building except in designated smoking areas.

2. Prohibit on-property smoking within 25 feet of entries, outdoor air intakes and operable windows.

3. Provide signage to allow smoking in designated areas, prohibit smoking in designated areas or prohibit smoking on the entire property.

4. Provide designated smoking rooms designed to contain, capture and remove ETS from the building. At a minimum, the smoking room must be directly exhausted to the outdoors, away from air intakes and building entry paths, with no recirculation of ETS-containing air to nonsmoking areas and enclosed with impermeable deck-to-deck partitions. . The smoking room must be operated at a negative pressure, compared with the surrounding spaces, of at least an average of 5 Pascals (Pa) (0.02 inches of water gauge) and a minimum of 1 Pa (0.004 inches of water gauge) when the doors to the smoking rooms are closed.

5.Verify performance of the smoking rooms’ differential air pressures by conducting measurement tests.

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IEQ Prerequisite 2: Environmental Tobacco Smoke (ETS) Control

OPTION 2

CASE 2. Residential and Hospitality Projects:

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1. Prohibit smoking in all common areas of the building.
Locate any exterior designated smoking areas, including balconies where smoking is permitted, at least 25 feet from entries, outdoor air intakes and operable windows opening to common areas.

2. Prohibit on-property smoking within 25 feet of entries, outdoor air intakes and operable windows. Provide signage to allow smoking in designated areas, prohibit smoking in designated areas or prohibit smoking on the entire property.

3. Weather-strip all exterior doors and operable windows in the residential units to minimize leakage from outdoors.

4. Minimize uncontrolled pathways for ETS transfer between individual residential units by sealing penetrations in walls, ceilings and floors in the residential units and by sealing vertical chases adjacent to the units.

5. Weather-strip all doors in the residential units leading to common hallways to minimize air leakage into the hallway.

6. Demonstrate acceptable sealing of residential units by a blower door test.

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IEQ Credit 1: Outdoor Air Delivery Monitoring (1 Point)

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1. Install permanent monitoring systems to ensure that ventilation systems maintain design minimum requirements.

2. Configure all monitoring equipment to generate an alarm when airflow values or carbon dioxide (CO2) levels vary by 10% or more from the design values via either a building automation system alarm to the building operator or a visual or audible alert to the building occupants.

AND

CASE 1. Mechanically Ventilated Spaces -

1. Monitor CO2 concentrations within all densely occupied spaces i.e., those with a design occupant density of 25 people or more per 1,000 square feet.

2. CO2 monitors must be between 3 and 6 feet above the floor.

3. Provide a direct outdoor airflow measurement device capable of measuring the minimum outdoor air intake flow with an accuracy of plus or minus 15% of the design minimum outdoor air rate, based on the value determined in IEQ Prerequisite 1: Minimum Indoor Air Quality Performance, for mechanical ventilation systems where 20% or more of the design supply airflow serves nondensely occupied spaces.

OR

CASE 2. Naturally Ventilated Spaces -

1. Monitor CO2 concentrations within all naturally ventilated spaces.

2. CO2 monitors must be between 3 and 6 feet feet (between 1 and 2 meters) above the floor.

NOTE: One CO2 sensor may be used to monitor multiple nondensely occupied spaces if the natural ventilation design uses passive stack(s) or other means to induce airflow through those spaces equally and simultaneously without intervention by building occupants.

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IEQ Credit 2: Increased Ventilation (1 Point)

CASE 1. Mechanically Ventilated Spaces:

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OPTION 1. ASHRAE Standard 62.1-2007 or Non-U.S. Equivalent-

1. Increase breathing zone outdoor air ventilation rates to all occupied spaces by at least 30% above the minimum rates required by ASHRAE Standard 62.1-2007 (with errata but without addenda1) as determined by IEQ Prerequisite 1: Minimum Indoor Air Quality Performance. Projects outside the U.S. may use a local equivalent to ASHRAE Standard 62.1-2007 if the same is used for IEQ Prerequisite 1: Minimum Indoor Air Quality Performance.

OR

OPTION 2. CEN Standard EN 15251: 2007-

1. Projects outside the U.S. may earn this credit by increasing breathing zone outdoor air ventilation rates to all occupied spaces by at least 30% above the minimum rates required by Annex B of Comité Européen de Normalisation (CEN) Standard EN 15251: 2007, Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics as determined by IEQ Prerequisite 1: Minimum Indoor Air Quality Performance.

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IEQ Credit 2: Increased Ventilation (1 Point)

CASE 2. Naturally Ventilated Spaces:

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Determine that natural ventilation is an effective strategy for the project by following the flow diagram process shown in Figure 2.8 of the CIBSE Applications Manual 10: 2005, Natural Ventilation in Non-domestic Buildings.

AND

OPTION 1. CIBSE or Non-U.S. Equivalent
Show that the natural ventilation systems design meets the recommendations set forth in the CIBSE manuals appropriate to the project space.

PATH 1
Use CIBSE Applications Manual 10: 2005, Natural Ventilation in Non-domestic Buildings. Projects outside the U.S. may use a local equivalent.

OR

PATH 2
Use CIBSE AM 13:2000, Mixed Mode Ventilation. Projects outside the U.S. may use a local equivalent.

OR

OPTION 2. Airflow Model
Use a macroscopic, multizone, analytic model to predict that room-by-room airflows will effectively naturally ventilate, defined as providing the minimum ventilation rates required by ASHRAE 62.1-2007 section 6 (with errata but without addenda1), for at least 90% of occupied spaces. Projects outside the U.S. may use Annex B of Comité Européen de Normalisation (CEN) Standard EN 15251: 2007 or a local equivalent to section 6 of ASHRAE Standard 62.1-2007 to define the minimum ventilation rates.

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IEQ Credit 3.1: Construction Indoor Air Quality Management Plan—During Construction
(1 Point)

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Develop and implement an IAQ management plan for the construction and preoccupancy phases of the building as follows:

1. During construction, meet or exceed the recommended control measures of (SMACNA) IAQ Guidelines For Occupied Buildings Under Construction.

2. Protect stored on-site and installed absorptive materials from moisture damage.

3. If permanently installed air handlers are used during construction, filtration media must be used at each return air grille that meets one of the following criteria below. Replace all filtration media immediately prior to occupancy.

4. Filtration media with a Minimum Efficiency Reporting Value (MERV) of 8 as determined by ASHRAE Standard 52.2-1999 (with errata but without addenda).

5. Filtration media is Class F5 or higher, as defined by CEN Standard EN 779-2002, Particulate air filters for general ventilation, Determination of the filtration performance.

6. Filtration media with a minimum dust spot efficiency of 30% or higher and greater than 90% arrestance on a particle size of 3–10 μg.

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IEQ Credit 3.2: Construction Indoor Air Quality Management Plan—Before Occupancy
(1 Point)

OPTION 1 - FLUSHOUT:

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PATH 1
After construction ends, prior to occupancy and with all interior finishes installed, install new filtration media and , perform a building flush-out by supplying a total air volume of 14,000 cubic feet of outdoor air per square foot of floor area while maintaining an internal temperature of at least 60° F and relative humidity no higher than 60%.

OR

PATH 2
If occupancy is desired prior to completion of the flush-out, the space may be occupied following delivery of a minimum of 3,500 cubic feet of outdoor air per square foot of floor area. Once the space is occupied, it must be ventilated at a minimum rate of 0.30 cubic feet per minute (cfm) per square foot of outside air or the design minimum outside air rate determined in IEQ Prerequisite 1: Minimum Indoor Air Quality Performance, whichever is greater. During each day of the flush-out period, ventilation must begin a minimum of 3 hours prior to occupancy and continue during occupancy. These conditions must be maintained until a total of 14,000 cubic feet per square foot of outside air has been delivered to the space.

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Management Plan—Before Occupancy
(1 Point)

OPTION 2. Air Testing:

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1. Conduct baseline IAQ testing after construction ends and prior to occupancy using testing protocols consistent with the EPA Compendium of Methods for the Determination of Air Pollutants in Indoor Air or the ISO method listed in the table below. Testing must be done in accordance with one standard; project teams may not mix requirements from the EPA Compendium of Methods with ISO.

2. For each sampling point where the maximum concentration limits are exceeded, conduct an additional flush- out with outside air and retest the noncompliant concentrations. Repeat until all requirements are met. When retesting noncompliant building areas, take samples from the same locations as in the first test, although it is not required.

Conduct the air sample testing as follows:

1. All measurements must be conducted prior to occupancy, but during normal occupied hours with the building ventilation system started at the normal daily start time and operated at the minimum outside air flow rate for the occupied mode throughout the test.

2. All interior finishes must be installed, including but not limited to millwork, doors, paint, carpet and acoustic tiles. Movable furnishings such as workstations and partitions should be in place for the testing, although it is not required.

3. The number of sampling locations will depend on the size of the building and number of ventilation systems. The number of sampling locations must include the entire building and all representative situations. Include areas with the least ventilation and greatest presumed source strength.

4. Air samples must be collected between 3 and 6 feet (between 1 and 2 meters) from the floor to represent the breathing zone of occupants, and over a minimum 4-hour period.

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IEQ Credit 4.1: Low-Emitting Materials—Adhesives and Sealants (1 Point)

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1. All adhesives and sealants used on the interior of the building (i.e., inside of the weatherproofing system and applied on-site) must comply with the following requirements as applicable to the project scope:

NOTE: Adhesives, Sealants and Sealant Primers must comply with South Coast Air Quality Management District (SCAQMD) Rule #1168. Volatile organic compound (VOC) limits listed in the table below correspond to an effective date of July 1, 2005 and rule amendment date of January 7, 2005.

2. Aerosol Adhesives must comply with Green Seal Standard for Commercial Adhesives GS-36 requirements in effect on October 19, 2000.
Table 2. excludes adhesives and sealants integral to the water-proofing system or that are not building related.

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IEQ Credit 4.2: Low-Emitting Materials—Paints and Coatings (1 Point)

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1. Paints and coatings used on the interior of the building (i.e., inside of the weatherproofing system and applied on- site) must comply with the following criteria as applicable to the project scope:

A. Architectural paints and coatings applied to interior walls and ceilings must not exceed the volatile organic compound (VOC) content limits established in Green Seal Standard GS-11.

B. Anti-corrosive and anti-rust paints applied to interior ferrous metal substrates must not exceed the VOC content limit of 250 g/L (2 lb/gal) established in Green Seal Standard GC-03.

C. Clear wood finishes, floor coatings, stains, primers, sealers, and shellacs applied to interior elements must not exceed the VOC content limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113.

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IEQ Credit 4.3: Low-Emitting Materials—Flooring Systems (1 Point)

OPTION 1:

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1. All carpet installed in the building interior must meet ONE of the following requirements:

A. Meets the testing and product requirements of the Carpet and Rug Institute Green Label Plus.

B. Maximum VOC concentrations are less than or equal to those specified in the California Department of Health Services Standard Practice.

C. Maximum VOC concentrations meet the California requirements specified above based on the California Department of Public Health (CDPH) Standard Method V1.1-2010.

2. All carpet cushion installed in the building interior must meet the requirements of the Carpet and Rug Institute Green Label program.

3. All carpet adhesive must meet the requirements of IEQ Credit 4.1: Adhesives and Sealants.

4. All hard surface flooring installed in the building interior must meet ONE of the following requirements:

A. Meet the requirements of the FloorScore standard.

B. Demonstrate maximum VOC concentrations less than or equal to those specified in the California Department of Health Services Standard Practice.

C. Maximum VOC concentrations meet the California requirements specified above based on the California Department of Public Health (CDPH) Standard Method V1.1-2010.

D. Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements. However, associated site-applied adhesives, grouts, finishes and sealers must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.

5. Concrete, wood, bamboo and cork floor finishes such as sealer, stain and finish must meet the requirements of South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004.

6. Tile setting adhesives and grout must meet South Coast Air Quality Management District (SCAQMD) Rule 1168. VOC limits correspond to an effective date of July 1, 2005 and rule amendment date of January 7, 2005.

7. For carpet adhesive, concrete, wood, bamboo and cork floor finishes, and tile setting adhesives, compliance can be demonstrated with test results of:

A. Total volatiles fraction, based on one of the following, provided that water and exempt compounds are subtracted from total volatiles test results and the mass VOC content is calculated consistent with SCAQMD Rule 1113 and Rule 1168:
– ASTM D2369 – EPA method 24 – ISO 11890

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IEQ Credit 4.3: Low-Emitting Materials—Flooring Systems (1 Point)

OPTION 2:

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1. All flooring elements installed in the building interior must meet the testing and product requirements of the California Department of Health Services Standard Practice.

2. Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic- based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements. However, associated site-applied adhesives, grouts, finishes and sealers must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.

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IEQ Credit 4.4: Low-Emitting Materials—Composite Wood and Agrifiber Products (1 Point)

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1. Composite wood and agrifiber products used on the interior of the building (i.e., inside the weatherproofing system) must contain no added urea-formaldehyde resins. Laminating adhesives used to fabricate on-site and shop-applied composite wood and agrifiber assemblies must not contain added urea-formaldehyde resins.
Composite wood and agrifiber products are defined as particleboard, medium density fiberboard (MDF), plywood, wheatboard, strawboard, panel substrates and door cores. Materials considered fixtures, furniture and equipment (FF&E) are not considered base building elements and are not included.

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IEQ Credit 5: Indoor Chemical and Pollutant Source Control (1 Point)

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Design to minimize and control the entry of pollutants into buildings and later cross-contamination of regularly occupied areas through the following strategies:

1. Employ permanent entryway systems at least 10 feet long in the primary direction of travel to capture dirt and particulates entering the building at regularly used exterior entrances. Acceptable entryway systems include permanently installed grates, grills and slotted systems that allow for cleaning underneath. Roll-out mats are acceptable only when maintained on a weekly basis by a contracted service organization.

2. Sufficiently exhaust each space where hazardous gases or chemicals may be present or used (e.g., garages, housekeeping and laundry areas, copying and printing rooms) to create negative pressure with respect to adjacent spaces when the doors to the room are closed. For each of these spaces, provide self-closing doors and deck-to-deck partitions or a hard-lid ceiling.

3. In mechanically ventilated buildings, each ventilation system that supplies outdoor air shall comply with the following:

A. Particle filters or air cleaning devices shall be provided to clean the outdoor air at any location prior to its introduction to occupied spaces.

B. These filters or devices shall meet one of the following criteria:
–Filtration media is rated a minimum efficiency reporting value (MERV) of 13 or higher in accordance
with ASHRAE Standard 52.2.
–Filtration media is Class F7 or higher.

4. Clean air filtration media shall be installed in all air systems after completion of construction and prior to occupancy.

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IEQ Credit 6.1: Controllability of Systems—Lighting (1 Point)

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1. Provide individual lighting controls for 90% (minimum) of the building occupants to enable adjustments to suit individual task needs and preferences
Provide lighting system controls for all shared multi-occupant spaces to enable adjustments that meet group needs and preferences.

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IEQ Credit 6.2: Controllability of Systems—Thermal Comfort (1 Point)

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1. Provide individual comfort controls for 50% (minimum) of the building occupants to enable adjustments to meet individual needs and preferences. Operable windows may be used in lieu of controls for occupants located 20 feet inside and 10 feet to either side of the operable part of a window. The areas of operable window must meet the requirements of ASHRAE Standard 62.1-2007.

2. Provide comfort system controls for all shared multi-occupant spaces to enable adjustments that meet group needs and preferences.

NOTE: Conditions for thermal comfort are described in IEQ Credit 7.1: Thermal Comfort—Design and include the primary factors of air temperature, radiant temperature, air speed and humidity.

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IEQ Credit 7.1: Thermal Comfort—Design (1 Point)

OPTION 1:

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ASHRAE Standard 55-2004 or Non-U.S. Equivalent -

1. Meet the requirements of ASHRAE Standard 55-2004.

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IEQ Credit 7.1: Thermal Comfort—Design (1 Point)

OPTION 2:

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ISO 7730: 2005 & CEN Standard EN 15251: 2007 -

1. Projects outside the U.S. may earn this credit by designing heating, ventilating and air conditioning (HVAC) systems and the building envelope to meet the requirements of International Organization for Standardization (ISO) 7730;

AND

CEN Standard EN 15251: 2007, Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics.

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IEQ Credit 7.2: Thermal Comfort—Verification (1 Point in addition to IEQ credit 7.1)

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1. Achieve IEQ Credit 7.1

2. Agree to conduct a thermal comfort survey of building occupants within 6 to 18 months after occupancy. This survey should collect anonymous responses about thermal comfort in the building, including an assessment of overall satisfaction with thermal performance and identification of thermal comfort-related problems. Agree to develop a plan for corrective action if the survey results indicate that more than 20% of occupants are dissatisfied with thermal comfort in the building. Residential projects are not eligible for this credit.

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IEQ Credit 8.1: Daylight and Views—Daylight (1 Point)

OPTION 1:

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1. Achieve daylighting in at least 75% of regularly occupied spaces.

Simulation -

1. Demonstrate through computer simulation that the applicable spaces achieve daylight illuminance levels of a minimum of 10 footcandles and a maximum of 500 fc in a clear sky condition on September 21 at 9 a.m. and 3 p.m.
Provide glare control devices to avoid high-contrast situations that could impede visual tasks.

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IEQ Credit 8.1: Daylight and Views—Daylight (1 Point)

OPTION 2:

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Prescriptive -

1. Use a combination of sidelighting and/or toplighting to achieve a total daylighting zone (the floor area meeting the following requirements) that is at least 75% of all the regularly occupied spaces.

For sidelighting zones:

A. Achieve a value, calculated as the product of the visible light transmittance (VLT) and window-to-floor area ratio (WFR) of daylight zone between 0.150 and 0.180.

B. The window area included in the calculation must be at least 30 inches (0.8 meters) above the floor.

C. In section, the ceiling must not obstruct a line that extends from the window-head to a point on the floor that is located twice the height of the window-head from the exterior wall as measured perpendicular to the glass (see diagram on the next page).

D. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 0.150 value.

For toplighting zones:

A. The toplighting zone under a skylight is the outline of the opening beneath the skylight, plus in each direction the lesser of:
• 70% of the ceiling height,
• 1/2 the distance to the edge of the nearest skylight,
• The distance to any permanent partition that is closer than 70% of the distance between the top of the partition and the ceiling.

B. Achieve skylight coverage for the applicable space (containing the toplighting zone) between 3% and 6% of the total floor area.

C. The skylight must have a minimum 0.5 VLT.

D. A skylight diffuser, if used, must have a measured haze value of greater than 90% when tested according to ASTM D1003.

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IEQ Credit 8.1: Daylight and Views—Daylight (1 Point)

OPTION 3:

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Measurement -

1. Demonstrate through records of indoor light measurements that a minimum daylight illumination level of 10 fc and a maximum of 500 fc has been achieved in applicable spaces. Measurements must be taken on a 10-foot grid and shall be recorded on building floor plans.

2. Provide glare control devices to avoid high-contrast situations that could impede visual tasks. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 10 fc illuminance level.

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IEQ Credit 8.1: Daylight and Views—Daylight (1 Point)

OPTION 4:

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Combination -

1. Any of the above calculation methods may be combined to document the minimum daylight illumination in the applicable spaces.

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IEQ Credit 8.2: Daylight and Views—Views (1 Point)

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1. Achieve a direct line of sight to the outdoor environment via vision glazing between 30 inches and 90 inches above the finish floor for building occupants in 90% of all regularly occupied areas. Determine the area with a direct line of sight by totaling the regularly occupied floor area that meets the following criteria:

A. In plan view, the area is within sight lines drawn from perimeter vision glazing.

B. In section view, a direct sight line can be drawn from the area to perimeter vision glazing.

NOTE: The line of sight may be drawn through interior glazing. For private offices, the entire floor area of the office may be counted if 75% or more of the area has a direct line of sight to perimeter vision glazing. For multi-occupant spaces, the actual floor area with a direct line of sight to perimeter vision glazing is counted.

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ID Credit 1: Innovation in Design (1–5 Points)

PATH 1:

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Innovation in Design (1-5 points) -

1. Achieve significant, measurable environmental performance using a strategy not addressed in the LEED 2009 for New Construction and Major Renovations Rating System.

NOTE: One point is awarded for each innovation achieved. No more than 5 points under IDc1 may be earned through PATH 1—Innovation in Design.

2. Identify the following in writing:

A. The intent of the proposed innovation credit.

B. The proposed requirement for compliance.

C. The proposed submittals to demonstrate compliance.

D. The design approach (strategies) used to meet the requirements.

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ID Credit 1: Innovation in Design (1–5 Points)

PATH 2:

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Exemplary Performance (1-3 points) -

1. Achieve exemplary performance in an existing LEED 2009 for New Construction and Major Renovations prerequisite or credit that allows exemplary performance as specified in the LEED Reference Guide for Green Building Design & Construction, 2009 Edition.

NOTE: An exemplary performance point may be earned for achieving double the credit requirements and/or achieving the next incremental percentage threshold of an existing credit in LEED.
One point is awarded for each exemplary performance achieved. No more than 3 points under IDc1 may be earned through PATH 2— Exemplary Performance.

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ID Credit 1: Innovation in Design (1–5 Points)

PATH 3:

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Pilot Credit (1-5 points) -

1. Attempt a pilot credit available in the Pilot Credit Library at www.usgbc.org/pilotcreditlibrary. Register as a pilot credit participant and complete the required documentation. Projects may pursue up to 5 Pilot Credits total.

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ID Credit 2: LEED Accredited Professional (1 Point)

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1. At least 1 principal participant of the project team shall be a LEED Accredited Professional (AP).

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RP Credit 1: Regional Priority (1–4 Points)

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1. Earn 1-4 of the 6 Regional Priority credits identified by the USGBC regional councils and chapters as having environmental importance for a project’s region. A database of Regional Priority credits and their geographic applicability is available on the USGBC website, http://www.usgbc.org.

NOTE: One point is awarded for each Regional Priority credit achieved; no more than 4 credits identified as Regional Priority credits may be earned. The USGBC has prioritized credits for projects located in the U.S., Puerto Rico, the U.S. Virgin Islands, and Guam. All other international projects should check the database for eligible Regional Priority credits.