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., ...

We explain how to do it as well as why it's worthwhile doing ...

Q. We're buying a house that is probably close to 100 years old. It has been vacant for the past several years and needs a good amount of cleaning up and fixing up. One thing we're concerned about is ...