I have a small gable wall that has my front door and a window. The roof comes out from the main portion of the house.
The bottom of the gable wall is in really bad shape. They used a 2x4 as the sill plate and stacked bricks every foot or so to support it. So it's very saggy and split in some spots.
How can I support the top half of the gable wall so I can replace the bottom? Usually I'd build a temporary wall but since it's a gable wall there are no joists to support.

