I have a very old (100+ years) house, and am having issues with the lathe a nd plaster ceiling in one of the bedrooms. The plaster has started to sag and is causing some cracking. The cracks are all hairline, except for the spot where all the cracks are forming from, which is a hole about 1/8-1/4 o f an inch wide.
Issue doesn't appear to be water damage related, but just from age/house se ttling.
After doing some research into the issue, it seems that my best course of action would be to put some screws into the ceiling to secure the plaster and then patch over it. I do have some additional questions:
1)Even though this is caused by loose ceiling, would i still need to score the cracks, and if so how deep will I want to go?2)Do I need to score, secure, and patch all in the same day, or is this a p rocess that I can break up over 4-5 days?
3) Once I'm ready to patch, should I get some mesh to put down after the fi rst layer of patching?4) What kind of patching agent should I use? I've seen DIY articles recomm end anything from all purpose bonding agent up to durabond.
5) Should I screw all along the cracks, or just where I feel loose ceiling?Thank you all in advance!