QOD June 29-06

Another change - air change/ventilation requirements

Clue - ASHRAE standards

Great question . I think I know the answer but .
I have looked for the answer and could not find it

Roy Cooke sr …Not going to join ASRAE at $150.00

I know that it also referenced in some building codes, to the ASHRAE standard.

0.35 is not on the list.

It’s a trick question.LOL

"The American Society of Heating, Refrigeration and Air-Conditioning Engineering (ASHRAE [(3 bedrooms + 1) x 15 cfm = 60 cfm]. Kitchens should have an intermittent exhaust capacity of 100 cfm; bathrooms an intermittent capacity of 50 cfm. (ASHRAE also notes that “dwellings with tight enclosures may require supplemental ventilation supply for fuel-burning appliances, including fireplaces and mechanically exhausted appliances.”](“http://www.epa.gov/iaq/exitepa.htm”)

I wonder when Claude is going to give his answers to his questions of the Day .
Every time some one votes it comes back to the top of the BB.

Roy Cooke sr Royshomeinspection.com



You have to clarify your question.Are you talking about infiltration,HRV,what type of home?A home with a principle exhaust? The correct answer has so many variables,no. of occupants etc.This is a very vague question.


To ensure adequate ventilation, the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) says that the living area of a home should be ventilated at a rate of 0.35 air changes per hour or 15 cubic feet per minute (cfm) per person, whichever is greater.