Where does the air enter the air gap behind the facade panel?

[Erikjo92]

Owned this house for 1 year now, it was supposedly built around 2017. We are the second owners besides the construction company that built it. There are no documents or photos at all of how they did it, so I'm asking here. I want to know where the air enters the air gap behind the panel? There is a horizontal nailer behind the bottom facade board, so it’s tight there. Could they have intended for it to "breathe" through the gaps where the facade meets the corner board?

 

[maah]

The normal is vertical nail battens and a mouse band at the bottom.

I don't want to categorically claim that it's built incorrectly, but it doesn't look right.