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Wednesday, October 21, 2009

LEED NC 2.2 vs LEED BD+C Reference Guides: What are the Differences? | Green-Buildings.com

Here are some differences between LEED 2.2 and LEED 3.0

Partial repost: http://www.green-buildings.com/content/78890-leed-nc-22-vs-leed-bdc-reference-guides-what-are-differences

SSc7.1 – Heat Island Effect (Non-Roof): Now, areas shaded by solar panels or other renewable energy sources can be added to your qualifying area calculation.

WEp1 & WEc2 – Water Use Reduction: There is now a WE category prerequisite. The easy 20% reduction that was once a credit is now required because – like I said – it’s pretty easy. Credit levels have been bumped up to 30% and 40% (which used to qualify for an exemplary performance credit) in addition to a new third point for 45%.

EAc2 – On-Site Renewable Energy: Now you can earn points for generation of as little as 1% and as much as 13% of total building energy usage.

EQc4.3 – Low-Emitting Materials-Flooring Systems: This used to be a ‘carpet-systems’ point, which has now been expanded to include hard flooring.

EQc5 – Indoor Chemical and Pollutant Source Control: The entry grates must now be 10’ long instead of the previous 6’ required.

Eqc7.2 – Thermal Comfort, Verification: This credit is now contingent on earning credit 7.1.

Eqc8.1 – Daylight & Views – Daylight: Now, if you’re using a daylight simulation model, there are maximum foot-candle levels.


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LEED NC 2.2 vs LEED BD+C Reference Guides: What are the Differences? | Green-Buildings.com


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