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Guides / LCAbyg 2025 data in LCAbyg 2023

Transition to new climate requirements

LCAbyg 2025 data in LCAbyg 2023

BUILD has released an interim solution for LCAbyg 2023 (version 5.4.0.5) that supports the new climate requirements effective from July 1, 2025. The program itself works as before — you just need to import new data files.

How to do it

  1. Update to LCAbyg 2023 (5.4.0.5) and download the supplementary data files:Download data files (zip)
  2. Import the updated generic data into your project.
  3. Read the guide documentation carefully, since the new data sits alongside the old data in the program — don't mix them up by mistake.

Known limitations

Transport (A4) and special conditions currently can't be calculated directly in LCAbyg. Separate Excel sheets have been made for these calculations instead — seeExcel sheets for transport and construction process.

If you experience errors in the data, contact lcabyg@build.aau.dk. See also FAQ about calculations after July 1, 2025.