What is the maximum ach(infiltration) for residential buildings?
I would like to know the maximum infiltration rate in general for any residential building. Thanks in advance.
Can you give more context to your question? There's obviously no physical maximum value...
Thank you Sir, Actually I built 2 storey residential building, I calculate infiltration rate from Ashrae 1997 fundamentals chapter 25, table 3 and I got 0.135 ACH. I took stack coefficient = 0.00029,wind coefficient=0.000231, average wind velocity is 5.36 m/s, temperature difference is 20.4 degree Celsius. I want to know the minimum valve of infiltration rate?
Since infiltration is a function of indoor-outdoor temperature difference and wind speed, the theoretical minimum is 0 if dT=0 and ws=0. That's also assuming no pressurization due to ventilation devices.