Thursday, October 9, 2008

Local Materials in LEED

I hope this post helps to answer any questions about how LEED addresses 'local' materials.

LEED-New Construction (Credits MR 5.1 and 5.2) requires that the product be extracted, processed, AND manufactured within a 500 mile radius of the site. Either 10% (or more) or 20% (or more) of total materials in the whole project have to fit this criteria, based on cost of materials. If only a certain percentage of a product fits these qualifications, then that percentage of the total price of that product is used in the calculations of total materials cost in the project.

LEED-Homes (Credit MR 2.2) requires that the product be extracted, processed, AND manufactured within a 500 mile radius of the site. LEED-H bases this per building component and not as a percentage of total materials in the project. In this way, components would not need to rely on other products in the project to qualify for local credits. At least 90% of the component per weight or volume must meet the local criteria to qualify.

Click image to enlarge


Here's a link to a report we did on local materials that also highlights how other green building programs address "local": http://www.dovetailinc.org/reportView.php?action=displayReport&reportID=95


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