# \#athena

**URL:** https://community.carbonleadershipforum.org/tag/athena/149.md

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## [NRC National guidelines for whole-building life cycle assessment Guidelines (Canadian Projects) - Assumptions for Missing LCA Stages](https://community.carbonleadershipforum.org/t/nrc-national-guidelines-for-whole-building-life-cycle-assessment-guidelines-canadian-projects-assumptions-for-missing-lca-stages/8984)

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**Author:** [@KristinaKouyoumdjian](https://community.carbonleadershipforum.org/u/KristinaKouyoumdjian)\
**Replies:** 1\
**Last updated:** [July 17, 2025, 7:15pm UTC](https://community.carbonleadershipforum.org/t/nrc-national-guidelines-for-whole-building-life-cycle-assessment-guidelines-canadian-projects-assumptions-for-missing-lca-stages/8984 "2025-07-17T19:15:42Z")

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Hello, Athena does not provide data for stages B1, B3, and B5. Based on the NRC guidelines, when a software tool omits certain stages, it is acceptable to assume that the combined impact of stages B1–B5 equals 10% of th…

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## [Analyzing LCA data from Athena for a 3D-printed house](https://community.carbonleadershipforum.org/t/analyzing-lca-data-from-athena-for-a-3d-printed-house/6648)

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**Author:** [@Karin\_Najarian](https://community.carbonleadershipforum.org/u/Karin_Najarian)\
**Replies:** 1\
**Last updated:** [May 10, 2023, 3:13pm UTC](https://community.carbonleadershipforum.org/t/analyzing-lca-data-from-athena-for-a-3d-printed-house/6648 "2023-05-10T15:13:34Z")

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Hello, I am an architecture student participating in the US DOE Solar Decathlon Build Challenge. My team designed and built the first permitted 3D-printed house in Southern California and it is now nearing completion. We…

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## [LCA intro workshop from CLF Austin (includes Athena and Tally demo)](https://community.carbonleadershipforum.org/t/lca-intro-workshop-from-clf-austin-includes-athena-and-tally-demo/3373)

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**Author:** [@martintorres](https://community.carbonleadershipforum.org/u/martintorres)\
**Replies:** 0\
**Last updated:** [May 7, 2021, 6:28pm UTC](https://community.carbonleadershipforum.org/t/lca-intro-workshop-from-clf-austin-includes-athena-and-tally-demo/3373 "2021-05-07T18:28:39Z")

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Last week, the CLF Austin hub held an LCA Workshop. We want to grow the practice of LCA, so it is meant to be an introduction to LCA as a practice with demonstrations in Athena and Tally. This information is certainly no…