Q Am I right that when sections of plaster break away from the lath, an accepted repair technique is to roughly fill in those gaps with drywall and then drywall over the whole wall or ceiling? — M.H., ...

Question: The plaster ceiling in my condominium in a 1920 building is sagging. I bought ceiling buttons to try to get the ceiling plaster back up, but I am not sure how to use them. Are they driven ...