Repairing Old Ceilings Repairing Old Ceilings

To save an old plaster ceiling that has only a few cracks or holes, a little time and a few materials will do the trick.

Small Cracks

Patch up minor cracking and small holes with some quick-drying compound. Apply it with a taping knife, smooth it over, and then, when it’s dry, sand it lightly with a sanding block or an orbital sander using 80 to 100 grit sandpaper. Finally, add a thinned, finished coat of drywall compound.

Large Cracks

The first step in repairing a bigger crack is to undercut it with the sharp end of a beverage opener. This provides a better bond for the quick-drying compound.

Apply a thin layer and then place a piece of fiberglass tape over the crack. This will prevent the crack from spreading or reopening. Wipe another coat of compound across the top of the tape, feathering it in as flush as possible with the wall.

Let it dry for a day and then lightly sand it with a sanding block or an orbital sander. After this, add another layer of compound and feather it out flush with the wall.

Finishing Touches

Once the holes and cracks are filled, covered, feathered, and completely dry, sand them once again. Then, prime the area for paint or size it for wallpaper.

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