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Drywall cracks can occur in both new and older structures. They occur because of different reasons. In this article, BestLifeTips will help you resolve the issue of how to fix a crack in drywall that keeps coming back.
Why do drywall cracks keep coming back?
Before getting to know how to fix a crack in drywall that keeps coming back, you need to know the causes of it. So why do drywall cracks keep coming back?
Cracks develop because of a faulty drywall construction and is a natural sign of aging and settling. They also occur when seasons shift due to changing temperatures and humidity levels.
Drywall cracks recur because your home’s foundation or frame has shifted. Frost heaving, termites, dry rot, tree roots, or drainage problems can cause structural or foundation issues.
If the cracks have discoloration or if the surrounding surface is damp, it’s a sign of excessive moisture.
If you’re experiencing various issues without signs of leaks, structural issues, or seasonal effects, you may have poorly installed drywall. Improper drywall installation can cause cracking, bulging and buckling.
After knowing the reasons, keep reading to find out how to fix a crack in drywall that keeps coming back.
Can I use caulk to fix drywall cracks?
Yes, you can use caulk to fix drywall cracks. Caulk is flexible and can withstand a slight bit of settlement.
Use caulk if cracks appear on the wall. When the caulk has set, it will flex with the wall material to minimize future cracking.
Sand, prime and paint the wall after you’ve repaired the crack.
How to fix a crack in drywall that keeps coming back?
To prepare for how to fix a crack in drywall that keeps coming back, you need to gather your materials first. Look for the following tools that may already be available in your house you need to buy:
- Wall paint
- Putty knife
- Patch primer
- Drywall knife
- Paint bowl or mud pan
- Fiberglass mesh drywall tape
- Sandpaper or sanding sponge
Step 1: Use the sandpaper or sanding sponge to smoothen the crack on the wall. Scratch it lightly to remove all the chipped paint that is hanging on the wall and clearing off the dust. Be sure to cover surfaces that you’re going to include in the repair.
Step 2: Cover the cracked line using a drywall tape. A fiberglass mesh is the most suitable and practical material to use in this case. Make sure to precisely cover the center.
Step 3: Apply enough amount of patch primer to cover the crack and thinly over the fiberglass mesh. This can help repair drywall cracks since it is not only a primer, but it also consists of a joint compound.
You should use a brand-new patch primer that is still securely sealed for long-lasting results.
Step 4: The next step for how to fix a crack in drywall that keeps coming back is to use the putty knife to spread the patch primer all over the drywall crack.
Try not to wrinkle the mesh tape when applying the patch primer and make sure that you have completely applied the filling from the inside out. Let the patch primer dry up for about 30 minutes.
Step 5: After that, spread a second coating of the patch primer. You should cover at least 2 inches wider toward all the outer directions of the crack.
Even out the primer application and smoothly flatten the final surface. Let it dry up for another 30 minutes.
Step 6: Use sandpaper or a sanding sponge to polish the dried-up patch primer. This also helps the product properly blend into the drywall.
Step 7: The last step of how to fix a crack in drywall that keeps coming back is to repaint the affected area of the wall. A couple of coats can make your wall look like its original form.
That’s step-by-step guide for how to fix a crack in drywall that keeps coming back. You can apply them right away if there is any drywall crack in your house.
How to fix corner bead cracks?
Step 1: Use the hammer to lightly tap the corner bead to straighten it if it is bent and push it back flush with the wall.
Use a few nails to secure it to the stud. Make sure no part of the corner bead sticks out from the wall.
Step 2: Put the mesh drywall tape over the edge of the corner bead so that it covers the cracks between it and the drywall. Use a taping knife to spread a coat of drywall compound on one side of the corner bead.
Flat it with the edge of the knife. Allow to dry.
Step 3: Cover the other side of the corner bead and mesh tape with drywall compound. Smooth it flush with the wall and let it dry.
Step 4: Sand both sides to create a smooth finish flush with the wall. Apply a coat of primer and let it dry. Paint the walls with paint that matches the existing.
How to fix drywall stress cracks?
A related question to how to fix a crack in drywall that keeps coming back is how to fix drywall stress cracks.
Step 1: Spread out the dropcloth. Set up a ladder and rake out or open up the crack with the 5 in 1 tool.
Step 2: Place the joint tape on the crack and use the drywall taping knives to apply the first thin coat of the joint compound. Let it dry.
Step 3: Next, apply two additional coats. Remember to allow each to dry before applying the next one.
Step 4: Use the sanding sponge to smooth it when the final coat has dried.
Step 5: Prime the repair and paint it.
How to fix large drywall cracks?
Another related question to how to fix a crack in drywall that keeps coming back is how to fix large drywall cracks?
Larger cracks will take a little more effort to deal with. How wide is the crack? Is there a gap? For drywall cracks that have a separation between the two sides, you need to pre-fill them with drywall compound first.
Use a knife that is wider than the crack. Pack some mud into the crack with stiff drywall compound. Drag the knife lengthwise with the crack, removing the excess mud.
Make sure you have filled the crack completely. Add some mud and drag it again if you see voids.
Let it dry before you tape it. Then just apply the steps of how to fix a crack in drywall that keeps coming back above to fix the crack.
How to keep cracks in drywall from coming back?
The best way to keep cracks in drywall from coming back is a good installation. Make sure to use the right drywall and the right mud tape so that you can strengthen the seams accordingly to prevent cracks.
There are different levels of drywall mud. Some are more adhesive, which are great to use for the first coat. For the second and third coats, you can use a lower level mud.
Use the quick-setting hot mud or all-purpose drywall compound for the first coat. Then use lightweight mud for the finishing.
Another thing to notice is to use the right kind of tape. Drywall seams are normally covered with paper tape, which is stronger and prevents cracking a lot better than fiberglass tape.
Do not use the mesh tape if you are going to use the quick-setting hot mud.
You can mix glue-like drywall mud setting additives can into your mud to make it more malleable when dried. The glue-like additive prevents cracking or limits it when movement happens.
To prevent hairline cracks in areas where the corner bead meets the drywall, do not nail the corner bead into the framing. Then, use a mesh over mud legs of a metal or vinyl bead to reduce the amount of compound needed so you create a smooth transition.
See more: Preparing walls for tiling
Now you know how to fix a crack in drywall that keeps coming back. Apply the above steps whenever the drywall cracks appear on your wall. Please Like & Share this article of BestLifeTips if you find it helpful.