Drywall, also called gypsum board or plasterboard, is used to cover interior walls and ceilings. Drywall replaced plaster as a less expensive and less time-consuming way of erecting interior walls or remodeling. Drywall is more simple to hang than creating plaster walls and can be easily repaired when damaged. Drywall is affixed using drywall screws, and panels are joined together by "taping." To fix a corner of drywall that has cracked only requires a few tools and simple steps.
Instructions
1. Score the damaged area using a utility knife. Insert the edge of a utility knife about 2 inches above the drywall corner crack. Cut a line 2 inches on either side of the corner. Repeat at the bottom of the crack.
2. Pull the loosened drywall away from the corner bead using your hands and a putty knife.
3. Saw the exposed corner bead using a hacksaw. Remove the corner bead from the wall.
4. Cut a replacement section of corner bead and place it in the same place where the cut corner bead existed. Secure the replacement corner bead using 5/8-inch drywall screws.
5. Cover the patch with joint compound using a drywall knife. Allow 10 to 12 hours for the joint compound to set and dry. Sand away rough spots on the patch with fine-grit sandpaper.
6. Apply a thin second coat of joint compound once you've smoothed the first coat with sandpaper. Allow the second coat to set and dry for 10 to 12 hours. Sand the second coat as needed, and paint to finish.
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