I have no experience working with plaster walls.
In the kitchen of a building I maintain, there are large sections of paint cracking off the walls. When peeled, I see several layers of paint (at least 3) over a thicker layer of what looks like joint compound or spackle over a gray, very pourous, plaster wall. I realized in one particular place in the kitchen (above the sink) that the plaster is coming off the lath and that it is very crumbly at that point.
I had intended to scrape the walls down to plaster and then prime and paint. I thought I may have to repair some plaster cracks. I am starting to think that this is not possible and more major repairs will need to be done. Do you have any insight? Will I need to seek professional help? I could donate a full week of my time to this task but we have new residents arriving in a couple weeks.
This is student co-op housing that has been run on a dirt cheap budget for 50 years. The house was built in 1907 and we have owned it since the 50s. I know that there was major repairs done to the building in the early 90s (was condemned by the city at one point for reasons I cannot figure out). It does look like the walls have been somewhat repaired before because there seem to be areas that were patched (uneven spots with tool marks painted over).