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Short story -- over the years my lathe and plasters walls have cracked rather badly, but the plaster is still well keyed into the lathe, so I don't want to take it down and put up drywall. The other reason I do not want to re-rock is that while the individual cracks are rather bad, on the whole there aren't that many of them.
The reason the walls cracked is that the house settled and was jacked up, and then we had new electric boxes put it -- the drilling and jacking "jacked up" the walls.
My thinking is I can chisel out the cracked material and use patching plaster to fill it and then prime and paint.
But often my thinking is wrong..... and I don't want to really mess up my walls.
Any help here?
Last edited by Tallysmom; 12-18-2011 at 01:55 PM..
Owned a number of "antique" houses and currently live in one about 95 years old. Patch and sand. For larger cracks undercut them a bit and patch. Remember it takes a few coats to build up. Moisten the adjacent plaster and old lath. Make sure the plaster keys. Be patient. It'll be fine.
For large cracks you need to cut a keystone shaped trench along the crack. This will kep the patch from popping out due to themal differences int he plaster. For smaller cracks and to cover a path, I always used that fiberglass mat that they use for drywall and then skim coat the area far enough out that the patch is not noticable. This is very easy to do and works great. spackle will work if you are moving out in 6 months to a year - if you are lucky.
For large cracks you need to cut a keystone shaped trench along the crack. This will kep the patch from popping out due to themal differences int he plaster. For smaller cracks and to cover a path, I always used that fiberglass mat that they use for drywall and then skim coat the area far enough out that the patch is not noticable. This is very easy to do and works great. spackle will work if you are moving out in 6 months to a year - if you are lucky.
Agreed. The fiberglass mesh is excellent stuff.
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the walls.
