Revised to challenge the market

Note: This pilot credit was closed for new registrations as of August 15, 2011.

This credit has been achieved at high frequency due to the availability of recycled content in structural materials like steel and concrete. To continue to challenge the market structural materials have been removed from credit calculations in both the numerator and denominator.

CC Expanding Sealer – An Alternative to 1- and 2-Part Expanding Foams

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CC Expanding Sealer comes tightly compressed in 5-meter rolls, and it expands 15-fold once it is unrolled. Photo: CC Production AB, Sweden. Click on image to enlarge.

Since I've been writing this weekly column on innovative green building products, the most interesting products have been brought to my attention. CC Expanding Sealer is the latest.

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Green Building Priority #5 – Build Smaller

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These houses at Jenny Way on Martha's Vineyard range in size from 1,080 to 1,400 square feet. Designed and built by South Mountain Company, these were the first LEED Platinum, single-family, affordable housing units in the country. Photo: Randi Baird. Click on image to enlarge.

Number 5 in my list of the top-10 green building priorities is to build smaller houses and optimize the use of materials.

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One of several new performance-focused credits

Note: This pilot credit was closed for new registrations as of March 1, 2012.

This prerequisite is one of several new credits in the Performance category designed to track actual LEED building performance.

Additional Questions

1.    Did you find the projected annual water use calculations for sub-metered items cumbersome, or are these calculations a standard part of your design and con-struction process?

Don't just gather data—create a meaningful comparison

The performance of LEED buildings following certification is emerging as an important point of study. Data must not simply be gathered, but gathered and processed in a manner that allows meaningful comparison between predicted and actual energy performance. EA Credit 5, Measurement & Verification (M&V), addressed that need in principle. However, EAc5 was limited in that its IPMVP based protocol was never intended for use in LEED. The credit has been redeveloped into a mechanism that directly addresses the building performance needs of LEED.

Pilot Credit 39: Mixed-Use Neighborhood Centers Background Information

Note: This pilot credit was closed for new registrations as of March 1, 2012.

The proposed pilot credit is a revised version of a LEED 2009 credit. These changes are proposed for LEED 2012. The goal of the revisions was to remove some of the most difficult elements to document, and ensure better transit access to regional retail establishments.

Emphasizing social and cultural benefits of building reuse

Note: This pilot credit was closed for new registrations as of August 15, 2011.

This credit was created to emphasize the positive social and cultural effects of building reuse in a community. USGBC sees building reuse as a top priority for green building, and this credit aims to incentivize the rehabilitation of buildings of significant importance or potential impact to the community.