Building on the Material Ingredient Reporting credit, the intent behind this material ingredient optimization credit is to get manufacturers to reduce or eliminate hazardous ingredients in their products. The idea is that they will first need to find out what's in their products—and be rewarded for reporting that—and then take steps to reduce harmful substances.
This pilot credit gives project teams an immediate way to engage with the expected direction of LEED v4. See the credit language for more details.
Excerpted from LEED 2009 for Core and Shell Development
To encourage the use of products and materials for which life-cycle information is available and that have environmentally, economically, and socially preferable life-cycle impacts. To reward project teams for selecting products for which the chemical ingredients in the product are inventoried using an accepted methodology and for selecting products verified to minimize the use and generation of harmful substances. To reward raw material manufacturers who produce products verified to have improved life-cycle impacts.
Use products that document their material ingredient optimization using the paths below for at least 25%, by cost, of the total value of permanently installed products in the project.
For credit achievement calculation, products sourced (extracted, manufactured, and purchased) within 100 miles (160 km) of the project site are valued at 200% of their base contributing cost. For credit achievement calculation, the base contributing cost of individual products compliant with multiple responsible extraction criteria is not permitted to exceed 100% its total actual cost (before regional multipliers) and double counting of single product components compliant with multiple responsible extraction criteria is not permitted and in no case is a product permitted to contribute more than 200% of its total actual cost.
Structure and enclosure materials may not constitute more than 30% of the value of compliant building products.
Register for the pilot credit
I recently completed this pilot credit for submission. I understand this Pilot Credit is based on the LEED v4 MR credit and it underwent public approval. However, I think the benefit of Pilot Credits is to provide feedback. Please note these comments below will have no impact on your project pursuing this Pilot Credit, but were provided for discussion purposes only.
I think the structural and enclosure requirement cost limit at 30% is extremely difficult for core and shell commercial office buildings that are primarily structure and enclosure.
Also, I used products that were Cradle 2 Cradle certified at lower levels than noted in the credit language. I think partial credit should be awarded for products that have undergone the rigorous Cradle 2 Cradle certification process.
Lastly, I had a product that was 47% manufactured and extracted within 500 miles. I think the regional bonus should award partial compliance, and the boundary should be expanded to 500 miles.
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