After some water penetration issues were addressed in my condo building, I began attempting some simple (at the time) drywall repair. I was originally planning to replace the bottom portion of the metal corner bead and install about a 8x4 inch patch of drywall in the damaged area. After I cut off the bottom portion of corner bead and some of the damaged drywall, I noticed a hard metal plate behind the sheetrock (pictured below).
What would I anchor the new sheetrock and corner bead to? All of the diy videos I've seen have you anchoring the new sheetrock to the studs or using a piece of wood as a backer to screw the patch to the wall.
For additional context, this portion of drywall is the doorway to my outside balcony and is about 9 inches wide. The condo building interior is mostly concrete and the outside is brick.
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What would I anchor the new sheetrock and corner bead to? All of the diy videos I've seen have you anchoring the new sheetrock to the studs or using a piece of wood as a backer to screw the patch to the wall.
For additional context, this portion of drywall is the doorway to my outside balcony and is about 9 inches wide. The condo building interior is mostly concrete and the outside is brick.
