How to attach balcony cover to existing house? When attaching the header board, where do you attach the header board.

When attaching the header board, where do you attach the header board.
Answers:    Your better bad aiming for the rim joist between the 1st and 2nd story. Use 4 1/2" galvinized lags and washers stagered top & bottom every 16".
header goes beneath the rafters on the outside
of the wall your attaching it to,
hit the existing studs to attach to,