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EBOM-2009 IEQp1:Minimum IAQ Performance

Local code more stringent than ASHRAE 62.1

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Andrew Tse
LEED Project Engineer
Lilker EMO Energy Solutions
LEEDuser Basic Member
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I noticed that the LEED EBOM form does not have the same compliance path as LEED-NC, which allows you to document that your building complies with local code that is more stringent than ASHRAE 62.1. Has anyone ever tried the "local code" compliance path for an EBOM project?

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Tue, 04/01/2014 - 16:09

Hello Tom, I have not done an EBOM project, but proving local code is more stringent than ASHRAE 62.1 is quite a pain. If you are challenged, the reviewers will ask you have to analyze your project using both methods and identify the most stringent conditions. This might appear to mean doing a side-by-side analysis on a space-by-space and a system-by-system basis. But, on the single occasion where a reviewer challenged me about local code for ventilation, I did not provide a side-by-side analysis. I provided two separate analyses which each showed compliance. A side-by-side analysis doesn't really prove anything because the calculation methodologies and assumptions used are often very different--apples and oranges.

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