Typically, to properly fix a crack, the crack is widened and the old popcorn scraped off down to the drywall. A special popcorn-repair material, such as is included in the Homax Acoustic Ceiling ...

Q. An ice dam left a small irregular brownish area and a crack in a bedroom ceiling. How do I fix it? A. You don’t mention if it’s a textured ceiling, the width of the crack, if there’s any ...