The board that runs along the bottom of the wall of an exterior wall under a window is rotten.
How To Repair Exterior Wall. Repairing existing wall studs may require the destruction of the interior wall finish (sheetrock, baseboard, crown molding), roofing material (decking, shingles) and sometimes even the exterior cladding (brick, siding, sheathing). It is like driving by an accident on the highway, you know you don't want to stare, but we always do!
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Allow the water to sit on the wall overnight to soak into the remaining mortar. If you've got a brick house and are looking to install a door in the brick, this how to will get you there. Once stucco begins to peel, stucco repair can be extremely hard.
Apply mortar to wall in an upward sweep.
If you do not want to replace the entire height of the siding, you may. Old decaying walls can really be an eye sore. When complete, cut in at the edges to provide a lip against which the repair mortar can tightly bond. Apply mortar to wall in an upward sweep.
