All exterior walls should be considered load bearing and the rafters above make it load bearing for sure.
2 2x12s should work fine and if you do it quickly you likely don't have to hold it up.
Easier sometimes is just open the ceiling and put matching LVL beside the rim joist.
The people that sell LVLs might help confirm if that would be sufficient.
2 2x12s should work fine and if you do it quickly you likely don't have to hold it up.
Easier sometimes is just open the ceiling and put matching LVL beside the rim joist.
The people that sell LVLs might help confirm if that would be sufficient.