ASHRAE 62.2-2010

Oh no!  It’s ASHRAE 62.2-2010!
That’s right, a shocking change is coming to the WX world.  ASHRAE 62.2-2010 is the ventilation standard that BPI will adopt on January 1 2013.  Generally, it requires more fans and more ventilation than the Building Tightness Limit.  Text for 62.2 is here at the ASHRAE website.  Apparently, Panasonic has had a run on it’s variable flow, continuous run fans, so stock up if you can.

UPDATE: BPI has put off adopting this ventilation standard until ASHRAE 62.2-2013 comes out in mid 2013.  Stay tuned for more…

By | 2012-10-18T22:50:00+00:00 October 18th, 2012|Ventilation|1 Comment

One Comment

  1. Mark Habib January 8, 2014 at 9:59 pm - Reply

    In 29 years of Weatherizing homes I feel there’s a lot that could be improved with the program. However, the Building Tighness Limit, based on Blower Door readings, is not one of them. Generally in my experience a 1200-1700 sq.ft. home at 1250 CFM @ 50 pa, with (5) people is not drafty or musty, and this is achieved without any Active Ventilation. Getting homes too tight, and relying on Active Ventilation to save the occupants is unwise. Our low-income clients may turn off fans or renters will change and not know the set up. It’s obvious that shady capitalist profiteers are behind this. So what else is new.

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