How To Repair Plaster Cracks In Ceiling

Score the crack with a utility knife to remove any loose plaster or other material that may be inside the crack.

How to repair plaster cracks in ceiling. How to fix cracks in plaster walls ceilings step 1. To repair small cracks in plaster you ll need patching compound medium and fine grit sandpaper a sanding block a putty knife a masonry chisel a paintbrush a rag and a screwdriver. Use mesh tape to cover the crack.

3 dampen the patch. For finishing you ll need primer and paint. Sand away high spots and ridges with 100 grit sandpaper.

If your ceiling is drywall you may. Repairing large cracks in plaster 1 widen the crack with the can opener and dampen the edges of the crack with a sponge. Remove any loose plaster that s embedded in the crack.

Once repair is complete apply one coat of primer followed by two topcoats of paint. Scrape the excess off the surrounding area but leave it proud or slightly bulged on the surface. Use plaster washers and drywall screws on large cracks large cracks where the lath and plaster have been pulled away from the wall can be re secured using metal plaster washers and ordinary 1 1 2 or 2 drywall screws image 1.

Fill low spots with joint compound. To repair a crack in a ceiling. This will allow the mud to bond directly to the plaster which will make the repair.

As with durabond fill the crack by coming at it perpendicularly from each side to push the plaster into and under the crack. 2 fill the crack half full with patching plaster. Using a nail score the plaster.