How can I patch rat holes in drywall? - briefly
Clean the damaged area, apply a patching compound, sand smooth, and repaint. Use a piece of drywall or mesh tape for larger openings before applying the compound.
How can I patch rat holes in drywall? - in detail
Repairing gnawed openings in plasterboard requires a systematic approach to restore structural integrity and prevent future intrusion.
First, clear the damaged area. Remove any loose gypsum, frayed paper, and debris using a utility knife or drywall saw. Trim the opening to a neat rectangle or square, cutting away ragged edges so that the edges are straight and stable.
Second, cut a replacement piece. Measure the opening, add a half‑inch margin on each side, and score a new drywall sheet with a utility knife. Snap the piece and trim it to fit tightly within the cavity.
Third, secure the patch. Insert the new fragment into the hole and fasten it to the surrounding wall studs or to wooden strips (backer boards) that have been screwed into the existing drywall. Use #6 drywall screws, spacing them about 1 inch from each edge.
Fourth, apply joint compound. Spread a thin coat of all‑purpose drywall mud over the seams, covering the screw heads and the perimeter of the patch. Embed paper or fiberglass tape over each joint, pressing it into the wet compound. Apply a second, wider coat, feathering the edges to blend with the surrounding surface. Allow each layer to dry completely (typically 24 hours) before sanding.
Fifth, sand and finish. Use a fine‑grit sanding sponge to smooth the dried compound, eliminating ridges and feathering the transition. Wipe away dust with a damp cloth. If necessary, apply a third thin coat of mud, let it dry, and sand again for a seamless surface.
Finally, prime and paint. Apply a primer suitable for drywall, then repaint the repaired section to match the existing wall color.
Key tools and materials: utility knife, drywall saw, replacement gypsum board, #6 screws, drill or screwdriver, joint compound, drywall tape, sanding sponge, primer, paint.
Following these steps restores the wall’s strength, eliminates entry points for pests, and yields a finish indistinguishable from the original surface.