I am happy that LEED is accepting ISO 7730 and EN 15251 as alternative to ASHRAE 55. My problem is that there are no single requirements in these standards but examples / recommendations for design parameters for 3 different categories of comfort.
In IEQp1 we are requested to meet the minimum requirements for ventilation. I would assume this is true for IEQc7.1 as well, and choose the least category. Does anyone have experience with submitting this credit following ISO / EN?
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Christopher Schaffner
CEO & FounderThe Green Engineer
LEEDuser Expert
963 thumbs up
December 31, 2015 - 5:31 pm
In v4, the EN and ISO standards are only for use on projects outside the US. I believe the same rule applies to the ACPs for v2009.
That said, if you feel strongly about using something other than ASHRAE 55 for a project in the US, state your case to the reviewers. Your case should explain why the alternative is more appropriate, not that it might be simply easier.