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How long are EPDs valid for?

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Samantha Lee on Oct 29, 2019, 8:35 am

Hi all. I know that EPDs have an expiration date listed on them, but I think I have heard of a rule that as long as the product the EPD is for is purchased within the year of expiration, it...

Last reply: Tristan Roberts, Nov 5, 2019, 9:50 am

What are permanently installed products?

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Sara Hickman on Sep 23, 2019, 6:41 pm

I am pursuing Option 1. The credit says: "20 different permanently installed products." Would appliances count?

Last reply: Sara Hickman, Oct 1, 2019, 1:14 pm

Industry wide EPD vs. Product Specific EPD

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Caitlin Hutton on Sep 16, 2019, 3:01 pm

Hello, I am attempting to achieve option one of the MRc2 credit meaning we need a total of 20 products from 5 different manufacturers. I noticed the point calculation difference between generic...

Last reply: Caitlin Hutton, Sep 16, 2019, 3:32 pm

LEED4.1 Multi-attribute optimization- life cycle impact reductions in embodied carbon

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Dionisio Franca on Mar 22, 2019, 3:04 am

Quoted from the 4.1 Beta:

Option 2. Multi-Attribute Optimization (1 point)
Use products that comply with one of the criteria below for 10%, by cost, of the total value of
...

Last reply: David Posada, Sep 11, 2019, 8:01 pm

USGBC approved programs.

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Samer Alhmdan on Jul 7, 2017, 2:25 am

Hello,
Where can I find a list for USGBC approved programs that certify products to get the point under option 2 -- Products that comply with other USGBC approved multi-attribute...

Last reply: Bill Freeman, Aug 26, 2019, 11:22 pm

Any reason NOT to switch from v4 to v4.1 for the BPDO EPD credit?

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Renee Shirey on Jul 12, 2019, 9:59 am

I looked at the changes, and I don't see a reason why the switch to v4.1 would not be of benefit.  Am I missing anything, where it could potentially create a problem for a project?

Last reply: Wes Sullens, Jul 14, 2019, 1:43 pm

Concrete Mixes Counting as Separate Products- One EPD

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Summer Gorder on Jul 2, 2019, 11:49 am

The Concrete supplier utilized multiple "mixes" of concrete in the project. A mix has slightly different functions, which I think would mean it is a separate product based on the USGBC definition...

Last reply: Craig Graber, Jul 8, 2019, 6:53 pm

How does the USGBC evaluate EPD expiration dates for projects with long construction periods.

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by James Howarth on Jun 25, 2019, 2:54 pm

(https://leeduser.buildinggreen.com/forum/epd-expiration-date), but not necessarily when its installed. However, its probably safest to, as much as possible, ensure that the EPD's you are using aren't expired by the time of your review. If that's...

Last reply: Mike Noon, Jun 26, 2019, 11:30 am

materials that create the building or are attached to it

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Francesco Passerini on May 17, 2019, 7:05 am

The Reference guide states: "LEED refers to products and materials that create the building or are attached to it"

Are materials that create the parking spaces included?

I think...

Barriers in implementing material transparency in LEED v4 projects

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by SUSAN THOMAS on Apr 16, 2019, 1:27 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.

...

Last reply: SUSAN THOMAS, Apr 19, 2019, 7:03 pm