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Green Guard Gold

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Jennifer Kruse on Apr 1, 2020, 12:40 pm

Is GreenGuard Gold considered an "approved USGBC program"? or is GreenGuard Gold compliant with GreenScreen?

Last reply: Paula Melton, Apr 1, 2020, 1:50 pm

REACH compliance

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Charline SEYTIER on Dec 21, 2017, 7:01 am

referenced by Charline is not sufficient at only 1,000 ppm. Please search the LEEDuser forum for more on this. I think this question may have been a duplicate which was answered previously. Log in or register...

Last reply: Saad Al Haj, Feb 12, 2020, 1:41 am

LEED guidlines for contractors

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Jade Jenkins on Nov 20, 2019, 2:40 pm

Hello everyone, I am a project manager and we are going out with an ITT soon. The building is aiming for a LEED silver rating and we would like to inform the contractors that they should keep...

Last reply: Jade Jenkins, Nov 26, 2019, 1:10 pm

CAS Number

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Samantha Lee on Nov 11, 2019, 2:17 pm

I have two questions about MRc4- Material Ingredients. Is a CASRN the same thing as CAS Number? Also, has anyone used the CAS number from a SDS as credit compliance for this credit?

Last reply: Tristan Roberts, Nov 12, 2019, 10:32 am

REACH registration number

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Francesco Passerini on Jul 8, 2019, 5:53 am

In safety data sheets the calcium diformat is labeled with REACH registration number 01-2119486476-24-xxxx

Therefore I would think that it is included in the REACH lists but in the REACH...

Last reply: Natalia Kopocinska, Jul 15, 2019, 7:07 am

CASRN Numbers Not Specific Enough

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Nathan Gauthier on Jun 17, 2019, 2:42 pm

We've gotten a response from reviewers that HPDs we've submitted "do not include compliant lists of materials ingredients" and then they call out CASRN 65997-19-5, which is steel in our USG...

Last reply: Tristan Roberts, Jun 17, 2019, 5:16 pm

Barriers in implementing material transparency in LEED v4 projects

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by SUSAN THOMAS on Apr 16, 2019, 1:30 pm

I am a master's student at State University of New York College of Environmental Science and Forestry doing my thesis in Barriers in implementing material transparency in LEED v4 projects.

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Chemical Inventory for material other than chemical....

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by PAWAN DAHIWAL on Mar 19, 2019, 9:25 am

How does material which don't have any chemical content OR no chemical used during its manufacturing but is a permanent building material, comply with credit? For example Granite OR marble, these...

Last reply: Tristan Roberts, Apr 2, 2019, 7:45 pm

How to tell if the chemical inventory of a product is disclosed to 0.1% (1000ppm)

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Ashley Hu on Jun 19, 2018, 7:51 pm

Hello there,

Option 1 accepts the following as documentation: 

  • Document to demonstrate the chemical inventory of the product to at least 0.1% (1000ppm).
  • ...

Last reply: Magdalena Magaña, Feb 11, 2019, 6:52 pm

Double counting Material Ingredients reporting

NC-v4 MRc4: Building product disclosure and optimization - material ingredients
posted by Vandita Mudgal on Jan 11, 2019, 2:12 pm

I think I know the answer, but worth checking with the group.

We have a bunch of product/materials on our project that have more than one material ingredient document (HPD, Declare,...

Last reply: Tristan Roberts, Jan 12, 2019, 4:16 pm