Hi All, 

We got a comment back from USGBC that said this: 

Hi everyone,

did anyone targeted Option 2, Path 4 and included recycled steel and rebars as "salvaged/reused"  materials.

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 th

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.

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:

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.

I couldn't find any mention of requirements for the design stage of the submitted LCA analysis.

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.

Dear LEED Experts, 

Hello,

I am carrying out an LCA for an EU-based project and am confused as to how to establish a baseline to compare improvements in the carbon footprint. 

Hello all,

My project is using One Click software to do LCA report.

Wondering if anyone has experience with this - we submitted the Credit under the beta version of v4.1 in June 2021, not realizing that the April 2021 version of the Credit has lower thresholds.

Hello!

​I was wondering if it is allowed to use generic data for the Baseline and use EPD for the propsed building to show imporvements?

Option 2, path 4 – LCA. “….and incorporate reuse and/or salvage materials into the project’s structure and enclosure….”.

Can the Danish tool, LCAbyg, for MR Credit: Building Life-Cycle Impact Reduction be used for a project in Denmark?

Is Athena the only free LCA tool to use to get the 1 point whole building assessment?

Hello,

I am doing LCA analysis for LEED by Athena. the building is modeled in Revit and I am getting the takeoffs from the model. My question is regarding columns and beams calculation.

Dear all,

Hi All,
My team and I are working through how to determine our baseline building for this credit.  The language reads: