Leadership in Energy and Environmental Design (LEED) – is a rating system sanctioned by the United States Green Building Council (USGBC) that provides a national standard for what constitutes a green building. It offers a set of scientifically based performance criteria and a point system for LEED project certification. LEED has three variations of rating systems where underfloor air distribution has a significant impact.
LEED Credit Categories and Point System
• Sustainable Sites SS
• Water Efficiency WE
• Energy & Atmosphere EA
• Materials & Resources MR
• Indoor Environmental Quality EQ
• Innovations & Design Process ID
LEED Certification: |
| LEED - NC for New Construction |
Based on 69 points:
Access floor with an underfloor air system can contribute up to 17 LEED points.
Materials and Resources (MR)
13 total possible points; up to four points applicable to access floors |
• MR 4.1 - 4.2 25 or 50 percent Recycled Content of Materials
• MR 5.1 Manufactured locally within 500 miles
• MR 5.2 Mfg. Locally with Regional Materials (500 miles) |
1- 2 points
1 point
1 point |
| |
Indoor Environmental Quality (EQ)
15 total possible points; up to nine points applicable to access floors |
• EQ2 - Increased Ventilation Effectiveness (air-changes)
• EQ 3.1 - Indoor Air Quality Plan during construction
• EQ 3.2 - Indoor Air Quality Plan before occupancy
• EQ 4.1 to 4.4 - Low Voss paints/adhesives/carpet/wood
• EQ 6.2 - Individual Controls temperature/lighting
• EQ 7.1 and 7.2 - Thermal Comfort per ASHRAE 55 |
1 point
1 point
1 point
1-4 points
1 point
1 point |
| |
Innovation in Design (ID)
Five total possible points, up to 4 points applicable with access floor. |
| • ID 1.1 to 1.4 - Innovation in Design |
1-4 points |
| |
| LEED - EB for Existing Buildings |
Based on 85 points:
Access floor with an underfloor air system can contribute up to 20 LEED points.
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Access floor with underfloor air system can contribute to up to 20 points.
Materials & Resources up to 7 points out of 16 Total Possible Points |
Points |
Construction, Demolition & Renovation Waste Mgmt- Recycle 50%
Credit 1.2 Construction, Demolition & Renovation Waste Mgmt- Recycle 75% Credit 2.1 Optimize Use of Alternative Materials-10% of Total Purchases
Credit 2.2 Optimize Use of Alternative Materials- 20% of Total Purchases
Credit 2.3 Optimize Use of Alternative Materials- 30% of Total Purchases
Credit 2.4 Optimize Use of Alternative Materials- 40% of Total Purchases
Credit 2.5 Optimize Use of Alternative Materials- 50% of Total Purchases |
1
1
1
1
1
1
1 |
| |
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Indoor Environmental Quality
Up to 9 points out of 22 Total Possible Points |
Points |
Credit 1 Outside Air Delivery Monitoring
Credit 2 Increased Ventilation
Credit 3 Construction IAQ Management Plan
Credit 4.1 Documenting Productivity Impacts- Absenteeism & Healthcare Cost Impacts
Credit 4.2 Documenting Productivity Impacts- Other Impacts
Credit 5.1 Indoor Chemical & Pollutant Source Control- Reduce Particulates in Air Sys.
Credit 6.2 Controllability of Systems- Temperature & Ventilation
Credit 7.1 Thermal Comfort- Compliance
Credit 9 Contemporary IAQ Practice |
1
1
1
1
1
1
1
1
1 |
| |
|
Innovation in Operation & Upgrades
Up to 1 - 4 points out of 5 Possible Points |
Points |
| Credit 1.1 - 1.4 - Innovation in Operations & Upgrades |
1-4 |
| |
| LEED – CI Commercial Interiors |
Based on 57 Points:
Access floor with an underfloor air system can contribute up to 23 points.
LEED Certified 21-26 points
Silver 27-31 points
Gold 32-41 points
Platinum 42+ points
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Materials & Resources
1 to 10 Points out of 14 Total Possible Points |
Points |
Credit 1.2 Building Reuse, Maintain 40% of Interior Non-Structural Components
Credit 1.3 Building Reuse, Maintain 60%of Interior Non-Structural Components
Credit 2.1 Construction Waste Management, Divert 50% From Landfill
Credit 2.2 Construction Waste Management, Divert 76% From Landfill
Credit 3.1 Resource Reuse, 5%
Credit 3.2 Resource Reuse, 10%
Credit 3.3 Resource Reuse, 30% Furniture and Furnishings
Credit 4.1 Recycled Content, 10% (post-consumer + _ pre-consumer)
Credit 4.2 Recycled Content 20% (post-consumer + _ pre-consumer)
Credit 5.1 Regional Materials, 20% Manufactured Regionally |
1
1
1
1
1
1
1
1
1
1 |
| |
Indoor Environmental Quality
1 to 9 points out of 17 Total Possible Points |
Points |
Credit 2 Increased Ventilation
Credit 3.1 Construction IAQ Management Plan, During Construction
Credit 3.2 Construction IAQ Management Plan, Before Occupancy
Credit 4.1 - 4.5 Low-Emitting Materials
Credit 6.2 Controllability of Systems, Temperature and Ventilation |
1
1
1
1
1 |
| |
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Innovation In Operation & Upgrades
Up to 1 - 4 points out of 5 Possible Points |
Points |
Credit 1.1 - 1.4 Innovation in Operation & Upgrades
Credit 1.1 - 1.4 Innovation in Operation & Upgrades |
1-4
1-4 |
