Fixing settling cracks in drywall involves a process of repairing and reinforcing the affected area. Here's a step-by-step guide to help you address settling cracks:
Prepare the area: Start by removing any loose or crumbling drywall around the crack. Use a utility knife to carefully cut away any damaged or uneven edges along the crack line. Clean the area to remove dust and debris.
Fill the crack: Apply a thin layer of joint compound (also known as drywall mud) over the crack using a putty knife or a drywall trowel. Press the compound firmly into the crack to ensure good adhesion. Scrape off any excess compound, leaving a smooth and even surface.
Reinforce with joint tape: Immediately after applying the joint compound, embed drywall joint tape over the crack. Press the tape into the compound using your putty knife or trowel, ensuring it is centered over the crack. Smooth out any wrinkles or air bubbles in the tape.
Apply additional coats of joint compound: Once the joint tape is in place, apply another thin layer of joint compound over the tape. Extend the compound beyond the tape to create a smooth transition with the surrounding wall. Feather the edges of the compound outward to blend it with the rest of the wall. Allow the compound to dry completely.
Sand and feather the edges: After the joint compound has dried, use a fine-grit sandpaper to lightly sand the repaired area. Feather the edges of the compound to create a smooth transition between the repaired section and the rest of the wall. Wipe away the dust with a clean cloth.
Repeat the compound and sanding process: Depending on the depth and width of the crack, you may need to repeat steps 2 to 5 to achieve a seamless and smooth finish. Apply subsequent coats of joint compound, allowing each layer to dry and sanding between coats.
Prime and paint: Once the repaired area is smooth and level with the surrounding wall, prime the patched section to ensure uniform absorption of paint. After the primer has dried, apply paint to match the color and texture of the surrounding wall.
Remember, if the settling cracks are recurring or extensive, it may be a sign of underlying structural issues. In such cases, it's advisable to consult a professional contractor or structural engineer to assess the situation and provide appropriate solutions.