Free air space - code requirements
Free air space - code requirements
(OP)
I was hoping soemeone could point me in the direction of where in ASHRAE does it dictate free air space requirment calculations. I ran the calcs for CFM but the client wishes to install a passive system. So the CFM calc means nothing, right?
CFM = Volume *3/60 (3ACH/60min/hr) = 80CFM
CFM = Volume *3/60 (3ACH/60min/hr) = 80CFM





RE: Free air space - code requirements
RE: Free air space - code requirements
RE: Free air space - code requirements
For example, on a residential crawlspace you have to meet a min req free air vent. You also have to meet these requirements in the attic area.
Does anyone know where I would look for these requirements.
RE: Free air space - code requirements
RE: Free air space - code requirements
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Free air space - code requirements