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NC-v4 EQc4:Indoor air quality assessment

Option 2 - Is there still a minimum sample area requirement?

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Daniel Smith
Environmental Engineer
Golder Associates
LEEDuser Basic Member
2 thumbs up

I am quoting to provide Option 2 IAQ testing for my first V4 BD+C project. In the USGBC online reference guide, I don't see a reference to a maximum square footage per sample; instead the focus appears to be mainly on types of spaces for a given ventilation area and floor. However, some examples and 3rd-party guidance I've found online have referenced a 5,000 square feet (465 square meters) maximum area for common space types (office, residential, etc.) and a larger, 50,000 square feet (4,654 square meters) maximum area for warehouses and other larger spaces. Would anyone know whether there is currently a maximum?

Thanks very much!

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Peter Doo
President
Doo Consulting LLC
LEEDuser Basic Member
136 thumbs up

Thu, 04/18/2019 - 19:29

The v4 Reference Guide is pretty clear. In the Step-by-Step Guidance for Option 2 it states, "For offices, retail, schools, hospitality, and multi-family residential projects, test areas no larger than 5,000 square feet (465 square meters). For warehouses or large open spaces in other building types (e.g., ballrooms in hospitality, gymnasiums in schools) a limit of 50,000 square feet (4,654 square meters) may be used."  I looked for a revision of this in v4.1 but have not seen any mention of such a revision. If anyone knows of a change, please share. This increases the number of testing locations (and cost) to 5x the LEED v3 requirement. 

Thu, 10/31/2019 - 09:47

If I have an open space office with 2000 m2 with the same HVAC system, do I need 5 testing points for this room? Or can I call it a sample and do only 1 testing point?   Thanks for help.

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