The 26,000 square foot building that I am working on has several spaces that are not served with supply air by the building's ventilation system, including toilet rooms and mechanical and electrical spaces. In order to meet the requirements of the Option 1 Flushout, does a supplemental fan system need to be provided to provide outside air to these spaces? If so, is this true of both occupied (toilet room) and nonoccupied (mechanical and electrical room) spaces?
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Dylan Connelly
Mechanical EngineerIntegral Group
LEEDuser Expert
472 thumbs up
March 15, 2013 - 12:06 pm
In my experience, those spaces do not need to be flushed out directly. It is a gray area with LEED, one that I have not been called out on so I have ignored in some regards.
Typically, for our flush out calculation we use the "official" LEED project/building sq.ft. even though the unoccupied spaces aren't necessarily directly receiving ventilation.