Hi all
We work on a office project at Marseille France with the Leed CS 2009 ; According to
- Table B-3 International Climate Zones Ashrae 90.1 2007 : Marseille / France is located in zone 4
- § B2 Major climate type definitions Ashrae 90.1 2007 : The climate is not marine, not dry, so it's Moist (A)
- Table B-4 International Climate Zones Ashrae 90.1 2007 : The climatic zone would be 3C (HDD1600 CDD2300)
So, we hesitate between climate 4A et 3C which makes a big difference for the energy simulation / option1.
Could you help?
Thanks
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5870 thumbs up
November 19, 2012 - 11:58 am
Since Table B-3 indicates climate zone 4 you would need to provide a thorough justification for using a different climate zone. Table B-3 is based on the HDD/CDD data that ASHRAE uses so I would think you would have a hard time justifying the use of a different set of HDD/CDD data but perhaps I am missing some information.
Elodie DUMAS
ALTO Ingénierie18 thumbs up
November 20, 2012 - 6:22 am
Thanks Marcus for your reply,
Sorry, I was discussing the point in SI unit.
With IP unit :
Table D-3 ashrae 90.1-2007 indicates HDD65=3194 and CDD50=3933
Table B-4 gives a climate zone 3C
Table B-3 indicates climate zone 4
still doubting
Thanks
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5870 thumbs up
November 20, 2012 - 10:15 am
The CDD/HDD from Table D-3 also qualify in Table B-4 under climate zone 4A and 4B. Since it does not qualify as marine it cannot be 3C so it must be 4A.