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Building reuse plus addition

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Erica Downs on Sep 1, 2021, 5:34 pm

Can someone please clarify if the entire project (including additions) is used as the "denominator" for this credit?  Or only the existing building that is being resused?  I am finding the credit...

Last reply: Lorax Partnerships, Sep 18, 2024, 4:31 pm

TallyCAT for LEED submission?

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Apoorva Pradhan on Sep 5, 2024, 8:29 pm

Has anyone here used TallyCAT for a LEED submission? I’ve just started my first TallyCAT model, and it seems to only represent...

USGBC's commentary "Product Replacement via EPDs optimization"

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by jaclyn lee on Sep 4, 2024, 7:58 pm

We got a comment back from USGBC that said this: 

It is unclear if the Product Replacement via EPDs optimization for aluminum extrusions, hollow structural steel, gypsum boards/...

Reuse/ Salvage Materials for Option 2- Path 4

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Eslam Elshorbagy on Jul 30, 2024, 2:58 pm

Hi everyone,

I would like to clarify the difference between...

Last reply: Dave Hubka, Jul 31, 2024, 8:45 am

Opt 2, path 4 Reuse and Salvaged Material requirement

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Dave Hubka on Oct 10, 2022, 11:18 am

I can't seem to find a minimum threshold for the amount of reused / salvaged materials required to be able to achieve all (4) points within Opt 2 Path 4.

Does anyone know if...

Last reply: Dave Hubka, Feb 19, 2024, 8:24 am

A2 EPDs Eutrophication

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Cecilia Lopez-Cotarelo on Jun 22, 2023, 9:47 am

Hello,

I am starting to use the new A2 type EPDs and having some challeneges with reporting the eutrophication potential, as there are three different types reported in different units:...

Last reply: Maria Porter, Aug 30, 2023, 3:08 am

Standard EPD to use in LCA

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Jose MARTINEZ on Jun 13, 2023, 4:08 pm

Good afternoon colleagues, we have recently received comments (by LEED reviewers) about the EPDs we use for LCA in the baseline model that are not the standards to consider in the U.S. industry (...

How to represent product-specific EPDs with LCA tools which don't cover them.

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by on May 3, 2023, 10:56 am

While we are getting up to speed on using OneClick LCA in our practice, most of our project LCAs are still in Tally, which currently has a more fixed database of materials. For Tally models where...

Last reply: Divya Shroff, Jun 14, 2023, 12:07 pm

Design stage of the submitted LCA analysis?

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by on May 10, 2023, 1:53 pm

I couldn't find any mention of requirements for the design stage of the submitted LCA analysis. If the LCA is performed during DD, say, and not much significant has changed to the design through...

Last reply: Bipin Karki, May 11, 2023, 3:01 pm

Is Option 2 AND Option 3 possible?

NC-v4.1 MRc1: Building life-cycle impact reduction
posted by Ian McCall on Mar 6, 2023, 2:50 am

Dear LEED Experts, 

In v4.1 is possible to combine "Option 2 AND Option 3" together or is just limited to "Option 1 AND/OR Option 2     OR   ...