Drywall tape can separate and peel away from wall corners for a couple of reasons. It usually is a problem associated with new houses because the spackle used to hold the tape in place was to dry or there just wasn’t enough applied to the drywall before the tape was put on. When this occurs the tape peels from the drywall.

Repairing drywall tape is easy to do. The only tools you will need is a 6 inch drywall taping knife, a utility knife, a roll of drywall tape, sand paper or drywall screen, and some joint compound.

How to repair peeling drywall tape:

To repair the peeling drywall tape start by lightly sanding over the peeling drywall taped area. Then use a utility knife to score the far edges of the peeling drywall tape. Make sure you make your cuts just beyond the ends of the peeling tape.

After scoring the drywall tape, use the utility knife to peel away the old tape. Then lightly sand over the seam with sand paper or drywall screen.

Use a 6 inch taping knife to apply a liberal amount of joint compound to the old seam. Lay a new piece of drywall tape over the seam. Work the tape into the joint compound and apply a thin layer of joint compound over the top of the drywall tape. Don’t press the drywall tape so hard into the seam that all the joint compound squeezes out from behind the drywall tape.

After the new drywall taped seam and joint compound is fully dry, lightly sand the edges and any ridges of dried joint compound on the seam. Apply a skim coat layer of joint compound over the seam. Flare the seam out a couple of inches wider on either side of the seam. Allow the taped seam to thoroughly dry before painting.

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