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Difference between design specification outdoor air and space infiltration design flow rates

Hi there,

I am trying to model a residential building in OpenStudio and am on to infiltration but I am very confused what the difference is between design specification outdoor air and space infiltration design flow rates. Would someone be able to explain this to me?

For the residential building I know ACH should be 0.25 but am unsure which infiltration category this comes under, if someone is able to clarify?

Thanks.

Difference between design specification outdoor air and space infiltration design flow rates

Hi there,

For the residential building I know ACH should be 0.25 but am unsure which infiltration category this comes under, if someone is able to clarify?

Thanks.