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In my opinion, ZoneInfiltration:DesignFlowRate is MORE appropriate for residential buildings than commercial.

1. The space is generally has a neutral static pressure.
2. There is minimal infiltration variation with height

Both of those characteristic will provide a more or less constant infiltration rate. Aside from exterior conditions the only thing that would significantly effect it would be interior exhaust fans. If you really want to account for differences in infiltration for spaces that have zones and such, I feel like that gets crazy complicated.

Wind speed is factored into ZoneInfiltration:DesignFlowRate, and it does have coefficients associated with the formula it uses, which should be a sufficient approximation. The ZoneInfiltration:FlowCoefficient may be a 'better' model but I'm just not sure it buys you much for residential purposes. I think it would almost be easier to do an E+ AirflowNetwork model instead of trying to determine stack/ wind coefficients for every zone.

In my opinion, ZoneInfiltration:DesignFlowRate is MORE appropriate for residential buildings than commercial.

1. The space is generally has a neutral static pressure.
2. There is minimal infiltration variation with height

Both of those characteristic will provide a more or less constant infiltration rate. Aside from exterior conditions the only thing that would significantly effect affect it would be interior exhaust fans. If you really want to account for differences in infiltration for spaces that have zones and such, I feel like that gets crazy complicated.

Wind speed is factored into ZoneInfiltration:DesignFlowRate, and it does have coefficients associated with the formula it uses, which should be a sufficient approximation. The ZoneInfiltration:FlowCoefficient may be a 'better' model but I'm just not sure it buys you much for residential purposes. I think it would almost be easier to do an E+ AirflowNetwork model instead of trying to determine stack/ wind coefficients for every zone.