Is a certification required to perform the pressure differential test? I'm wondering if it needs to be done by a specialty testing company or can it be done by the Mechanical Sub? This is for dedicated smoking units in a residential building using the door undercut method (no longer allowed in v4).
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11475 thumbs up
November 8, 2018 - 6:30 pm
I don't think it has to be certified by a particular body. I don't recall hearing that as a requirement a project was chasing. Having it done by a credible professional and documenting as such should be fine.