If the plaster ceiling feels firmly attached to the lath then you can do the same repair as for the small cracks above.įor larger cracks you may need two coats of spackle because of its tendency to shrink as it dries in large gaps so double check before priming and painting. If it’s loose then skip to the section below on sagging plaster. Once you’ve resolved the settling issues check along the sides of the cracks to determine if you have sagging plaster that has come loose from the supporting lath. The latter should be addressed immediately to prevent further damage. Perhaps the settling has occurred years ago and is now stable or maybe it’s ongoing. Parallel cracks are a sign of settling that should be address before doing any plaster repair. If you have large cracks, the size of a quarter or larger, or converging cracks where you see several cracks running roughly parallel to each other then these are a sign of potential issues. For smooth plaster simply fill, sand smooth, prime, and touch up the paint. If you have a rough texture or sanded plaster you can add some sand to your spackle or use a sponge to match the texture as closely as possible. These pose you no real issue to the structural health of the plaster ceiling and can be left alone unless they bother you.įor these small cracks the easiest solution is to use a 5-in-1 tool to dig any loose plaster out of the cracks very gently and then fill them with a spackling paste or joint compound.
Ceiling plaster crack#
You’ll deal with each type of crack a little differently. Sometimes these cracks are small, no more than a hairline crack and other times those cracks can grow quite large. Old lime and gypsum plaster gets harder and harder as decades pass and this rigidity can cause small stress cracks.
If you want to keep your plaster ceiling and make it look in tip top shape keep reading.
Ceiling plaster how to#
In this post, I’ll show you how to deal with everything from hairline cracks to sagging plaster ceilings to water damaged plaster and beyond. Over time everything needs a little maintenance and that includes plaster ceilings which take the brunt of gravity’s destructive force constantly working against them. The reasons to keep your plaster are numerous and may surprise you. An old-fashioned plaster ceiling can be a long lived and beautiful thing or it can look like a train wreck depending on how your old house has been treated over the years.
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