Building product disclosure and optimization - material ingredients | U.S. Green Building Council
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LEED BD+C: New Construction | v4 - LEED v4

Building product disclosure and optimization - material ingredients

Possible 2 points

Submittal Tips (click to expand)

MR Credit: Building Product Disclosure and Optimization – Material Ingredients

Option 1. Material Ingredient Reporting
  • Confirm that each material ingredient report demonstrates the chemical inventory of the product to at least 0.1% (1000 ppm).
  • Note that materials defined as trade secret or intellectual property in a manufacturer’s inventory may withhold the name and/or Chemical Abstract Service Registry Number (CASRN) but must disclose the role, amount and GreenScreen benchmark, as defined in GreenScreen v1.2 or globally harmonized system for the classification of chemicals. GreenScreen doesn’t screen products, it screens chemical ingredients. So, along with a GreenScreen assessment, the bill of materials for the product down to 1,000 part per million must be provided for Option 1 of this credit.
  • Note that Material Safety Data Sheets (MSDS) are usually not compliant, because the manufacturers are not required to go beyond 99% of the ingredients. Often, a much lower percentage of the ingredients are listed. When the MSDS confirms that the manufacturer had verified that they reported down to 1,000 parts per million, the documentation is compliant. If there are ranges – the lowest ranges must add up to 99.9%.
  • Be sure that components are broken down to their ingredient level. For instance for carpet or fabrics, expect to see the dyes broken out from the material, cotton, nylon 6, etc. Nylon 6 will have its own chemical components.
  • The HPD Collaborative has provided information on their website for use when assessing HPDv1 and HPD v2 documentation. http://www.hpd-collaborative.org/leed-v4-credit-achievement/
  • Remember that the Declare labels must indicate that all ingredients have been evaluated and disclosed down to 1,000 ppm.
Option 2. Material Ingredient Optimization
  • Materials defined as trade secret or intellectual property in a manufacturer’s inventory may withhold the name and/or Chemical Abstract Service Registry Number (CASRN) but must disclose the role, amount and GreenScreen benchmark, as defined in GreenScreen v1.2. GreenScreen doesn’t screen products, it screens chemical ingredients. So, along with a GreenScreen assessment, the bill of materials for the product down to 100 part per million must be provided for Option 2 of this credit.
Option 3. Product Manufacturer Supply Chain Optimization

Submittal Tips (click to expand)

MR Credit: PBT Source Reduction—Mercury (Healthcare Only)

  • Keep in mind that probe start metal halide lamps are not allowed and projects with such lamps are ineligible for this credit.
  • Ensure that the rated hours and start ballast types are included for all fluorescent and high-pressure sodium lamps.

How to Define a Product