Adjusted CO2-threshold for constructions with special conditions according to BR18

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1

Hi community

In the danish LCA method in BR18, it is allowed to exceed the national CO2-threshold, if your building has special conditions, such as bad geotechnical properties of the ground, high level of safety (CC3 or higher), etc.

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The conditions are explained here https://www.bygningsreglementet.dk/Bilag/B2/Bilag_2/Tabel_9#f00f6d89-6367-439e-baff-981c21725ab7 or here https://www.bygningsreglementet.dk/tekniske-bestemmelser/11/brv/version-2-bygningers-klimapaavirkning/kap-2_4/

Is it possible to adjust the CO2-threshold in RTLCA after correcting for materials/constructions effected by special conditions?

2

Hi @MarkLabrosse

We don’t have a specific feature developed for this, but you can use the custom calculationtype and adjust the threshold as needed.

Br
Martin

3

I guess we could make a custom excel-spreadsheet that does this manually for now, but doing it manually would be rather time consuming and would make the Emissions Overview graph in the Insights-view obsolete.

I would say that adding this feature is a fairly high priority to make RTLCA compliant with BR18 :thinking: Don’t know, if I’m the only one that feels so :sweat_smile:

4

I really hope this will be implemented.
Whenever we have special conditions, we have to do the calculations in LCAbyg instead.

Thomas

5

Hi Thomas

I’m not allowed to share excel files on the forum, so I have added my custom tool for calculating the compensation on my git. I added a little tutorial.

It takes a few minutes, but it’s better than using LCAbyg :stuck_out_tongue_winking_eye:

But yes, I also hope that they prioritize this feature!

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6

Hi Mark

Thanks a lot. Appreciate it.
Definitely better than using LCAbyg :wink:

7

Thanks a lot for that contribution Mark! I’ve added that to our Særlige forhold ticket. Should make it easier for the devs to develop.

Br
Martin

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8

Hi everyone

Someone reported an error in the excel file. I’ve fixed the error and re-uploadet the file:

Also gave it a little face lift

Happy LCA-ing to you all :wink:

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