Insulating conventional corner
I’m converting our 2car attached garage into conditioned shop. I’ve began weather sealing and am trying to decide what to do with the conventional corners box corners. Not sure what the proper term is for that but I’m referring to how the last and first stud in a corner of two perpendicular walls meet so that they essentially form a post, or a situation where there is an empty cavity facing the exterior and now way to access it from the interior.
I’m thinking I should:
-cut out one stud out and toenail it back to the sheathing so it’s oriented like a “California corner”?
-just wrap the stud corner as it is in rigid foam to at least stop the thermal break. Im furring out the walls from 2×4 to 2×6 so there’s room.
-not sweat it because this is just a garage and though it will be insulated and heated, it may only be kept at 40-50 degrees, and there should be little humidity. Besides the big leaky garage doors are the baseline for efficiency.
2×4 walls with double top plate, shingle siding and i will be insulating walls with rock wool.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part