Patching Drywall: Repairing Cracks Above Doors

Cracks in drywall above a door are a common issue, often caused by the building settling. The best way to repair these cracks is to widen them into a V-shape, fill the crack with joint compound, and then tape over it. It is important to use strong tape and a strong compound, such as a setting compound, to ensure the repair is durable. After taping, the repair should be smoothed out and any bumps lightly sanded down. The repair can then be painted over.

Cut a V-notch through the crack, removing loose material

To repair cracks in drywall above a door, you'll need to start by cutting a V-notch through the full length of the crack. This will help to create a stronger repair. The V-notch should be cut to a depth of 1/8 to 1/4 inch, and you should remove all loose wall material as you go. It's important to be careful and precise during this step to ensure you don't cut too deeply or widen the crack unnecessarily. Before you begin, it's a good idea to protect any woodwork near the crack with masking tape. This will help to avoid accidental damage and create cleaner lines for your repair.

Once you've cut the V-notch and removed any loose material, you can move on to the next step, which is embedding paper tape in joint compound. However, before embedding the tape, it's important to prepare the area properly. First, moisten the paper tape with water. This will help it adhere better and avoid trapping air bubbles under the tape. Next, lay the tape over the crack, ensuring it covers the entire length of the V-notch. Use a taping blade to smooth out the tape and remove any excess compound and air from underneath. This step is crucial, as it will help create a flat and even surface for the next steps.

After the tape is securely in place, you'll need to apply a thin layer of compound over it and feather it off about 2 inches on both sides of the tape. This will help create a smooth transition between the tape and the surrounding drywall. Allow this layer to dry thoroughly before moving on to the next step. Depending on the temperature and humidity, the drying time may vary, so it's always a good idea to give it enough time to ensure it's completely dry.

Now, you can apply a second coat of compound, smoothing it out with long, continuous strokes using a taping blade. This coat should extend about 6 to 7 inches on both sides of the joint. Again, let this coat dry thoroughly. If necessary, you can apply a third coat for a smoother finish. Once the compound is completely dry, lightly sand the area, being careful not to expose the tape, and then paint over it to match the surrounding wall.

Embed paper tape in joint compound, smoothing out air bubbles

To repair cracks in drywall above a door, you'll need to embed paper tape in joint compound, smoothing out any air bubbles. Here's a detailed, step-by-step guide:

First, prepare the area by widening the crack into a V-shape, cutting through the full length of the crack and removing all loose wall material. Protect any woodwork nearby with masking tape. This step ensures a stronger repair and helps to remove any unstable sections of drywall.

Next, take a roll of paper tape and moisten it with water. Paper tape is stronger than fiberglass tape for wall repairs. Lay the moistened tape over the crack, centring it so that it covers the entire length of the crack.

Now, apply joint compound to the tape. Use a 6-inch taping blade to squeeze out any excess compound and air from underneath the tape. This step is crucial for avoiding air bubbles under the tape. Make sure to press firmly and work your way along the tape, smoothing out any bumps or wrinkles as you go.

Once the tape is securely in place, apply a thin, additional layer of joint compound, feathering it off about 2 inches on both sides of the tape. This will help create a smooth transition between the tape and the surrounding wall.

Finally, let the repair dry thoroughly. It's important to be patient during this step, as rushing the drying process can impact the durability of the repair. Once it's completely dry, you can sand the area smooth, taking care not to expose the tape, and then paint over it to match the surrounding wall.

By carefully following these steps, you can effectively repair cracks in drywall above a door, creating a seamless and strong finish.

Apply a second coat of compound and let it dry

Once the first coat of compound is dry, it's time to apply a second coat. This is necessary because drywall compound needs to be applied in multiple thin layers—thicker layers are too hard to smooth out and will eventually cause cracking.

Use a 12-inch taping blade to apply the second coat of compound, smoothing it out 6 to 7 inches on both sides of the joint. Use long, continuous strokes to smooth the compound into a thin, even coat. Allow the repair to dry thoroughly. The drying time will depend on the product you are using, so be sure to check the manufacturer's instructions. Once the second coat is dry, you can move on to the next step, which is to sand the area smooth. Be careful not to expose the tape. After sanding, the area is ready to be painted.

Sand the area and paint it

Once you have repaired the crack in your drywall, you will need to sand and paint the area to make it look as good as new.

Sanding

Sanding the area is an important step in the repair process. It helps to smooth out any bumps or imperfections in the surface of the drywall, ensuring that the final product is smooth and even. You can use a fine-grit sanding sponge or sandpaper to gently sand the area until it is smooth. Make sure to use light pressure and circular motions when sanding to avoid damaging the drywall or creating more cracks. It is also important to wear a mask and safety goggles to avoid inhaling the drywall dust.

Painting

After sanding, you can begin painting. First, wipe away any dust or debris from the surface of the drywall with a damp cloth to ensure that your paint will adhere properly. Then, choose a paint that matches the colour of the surrounding wall. You may need to test a few shades to find the perfect match. Once you have selected your paint, use a small brush or roller to carefully apply it to the repaired area, blending it seamlessly into the surrounding wall. It is important to use light, even strokes and to allow the paint to dry completely before touching or applying additional coats.

Tips

• If you are not confident in your ability to match the paint colour perfectly, consider repainting the entire wall for a consistent finish.
• Always work in a well-ventilated area when painting and wear protective clothing to avoid getting paint on your clothes.
• If you are using a ladder to reach the crack above the door, make sure it is securely positioned on a level surface to avoid accidents.

Use a stronger tape and compound for a more durable repair

To repair cracks in drywall above a door, you can use a stronger tape and compound for a more durable fix. Here's a step-by-step guide:

• Cut a V-notch along the full length of the crack, making it 1/8 to 1/4 inch deep, and remove any loose wall material. Protect the surrounding woodwork with masking tape.
• Widen the V-shaped crack to strengthen the repair.
• Fill the crack with a heavyweight joint compound. Let it dry.
• When using tape, look for the strongest option available. Paper tape is stronger than fiberglass mesh tape for wall repairs. A new type of mesh tape, called Perfect Finish from FibaTape, is both thinner and stronger than paper tape, resulting in a less conspicuous repair.
• Embed the tape in joint compound using a 6-inch taping blade. Moisten the tape with water, lay it over the crack, and squeeze out any excess compound and air with the blade.
• Apply a thin additional layer of compound and feather it off about 2 inches on both sides of the tape. Let it dry.
• Apply a second coat of compound, smoothing it out 6 to 7 inches on both sides of the joint. Use long, continuous strokes with a 12-inch taping blade.
• Let the repair dry thoroughly, then sand it smooth, being careful not to expose the tape.
• Finally, paint over the repaired area.

By following these steps and using stronger tape and compound, you can achieve a more durable repair for cracks in drywall above a door.

Frequently asked questions