Yep, according to the US Flag Code:
When displayed either horizontally or vertically against a wall, the union should be uppermost and to the flag’s own right, that is, to the observer’s left.
TBF, it does have different instructions about how to display the flag outdoors, hard to tell from this perspective if it was actually hung properly.
10 years ago, and even more relevant today:
https://www.xkcd.com/1367/