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!