NC-v2.2 MRc5: Regional Materials
Regional materials are those that are extracted, harvested, and manufactured within a certain distance of your project site.
How far, exactly? Historically LEED has used a 500-mile radius to define regional products, but that made it difficult or impossible for coastal or remote regions to pursue this credit. A July 2012 LEED addendum added a more flexible approach, and now MRc5 offers two options to LEED 2009 projects:
Option 1: The old familiar option, uses a simple 500-mile radius from the site for both extraction and manufacturing distance.
Option 2: This new option allows you to do a prorated calculation based on the lower relative impact of shipping materials by rail or water. Calculate a 500 mile (800 km) total travel distance to the project site using a weighted average. Distance by rail can be divided by 3; distance by inland waterway by 2, and distance by sea by 15.
Use materials with recycled content such that the sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least:
(based on cost) of the total value of the materials in the project.
The recycled content value of a material assembly shall be determined by weight. The recycled fraction of the assembly is then multiplied by the cost of assembly to determine the recycled content value.
Recycled content shall be defined in accordance with the International Organization of Standards document, ISO 14021—Environmental labels and declarations—Self-declared environmental claims (Type II environmental labeling).
Post-consumer material is defined as waste material generated by households or by commercial, industrial and institutional facilities in their role as end-users of the product, which can no longer be used for its intended purpose.
Pre-consumer material is defined as material diverted from the waste stream during the manufacturing process. Excluded is reutilization of materials such as rework, regrind or scrap generated in a process and capable of being reclaimed within the same process that generated it.