Corner cracks in drywall can be an eyesore, but they’re also a common problem. Luckily, it’s a relatively easy fix that most homeowners can complete with a few simple tools and materials. But before jumping into the repair process, it’s important to understand what causes drywall cracks in the first place.
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Cracks in drywall corners typically occur due to movement in the underlying structure. This can be caused by a number of factors, including:
- Seasonal changes in temperature and humidity, which can cause the drywall to expand and contract
- Shifting of the house’s foundation
- Vibrations from nearby construction or traffic
Materials you will need:
- Joint compound
- Joint tape (paper or mesh)
- Joint knife
- Putty knife
- Masking tape
- Primer
- Paint
Steps to Repair the Corner Crack:
Step 1: Preparation
Begin by cleaning the damaged area. Remove any dirt or debris that could interfere with the repair. If the crack is large, you may need to use a utility knife to widen it slightly. This will allow you to get the joint tape in place properly.
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Step 2: Apply the Joint Tape
Cut a piece of joint tape that is long enough to cover the crack. Center the tape over the crack and press it firmly into place. Make sure that the tape is completely embedded in the joint compound.
Step 3: Apply the First Coat of Joint Compound
Using a joint knife, apply a thin coat of joint compound over the joint tape. Smooth the compound out, but do not overwork it. Allow the first coat to dry completely.
Step 4: Apply the Second Coat of Joint Compound
Once the first coat of joint compound has dried, apply a second coat. This coat should be thicker than the first, and it should be spread out until it is flush with the surrounding drywall.
Step 5: Sand the Joint Compound
Once the second coat of joint compound has dried, it should be sanded smooth. Use a fine-grit sandpaper and sand in a circular motion. Continue sanding until the joint is completely smooth.
Step 6: Prime and Paint
Finally, you will need to prime and paint the repaired area. This will help to seal the joint and prevent it from cracking again. Allow the primer to dry completely before applying the paint. Once the paint is dry, the repair should be complete.
By following these steps, you can quickly and easily repair corner cracks in drywall. With a little bit of practice, you’ll be able to make your drywall look as good as new.
How To Fix Corner Cracks In Drywall
Additional Tips for Preventing Drywall Cracks
In addition to repairing existing cracks, there are a few things you can do to help prevent them from occurring in the future:
- Use a corner bead when installing drywall. This will provide additional support to the corners and help to prevent them from cracking.
- Avoid placing heavy objects on or near drywall. This can put stress on the joints and cause them to crack.
- Keep your home’s humidity levels in check. Dry air can cause drywall to shrink and crack.
- Have your home inspected by a professional if you notice any signs of foundation problems. This can help to prevent further damage to your drywall.
