Cracks in manufactured drywall or plasterboard panels are caused by movement in the wood framing, according to TV celebrity contractor Danny Lipford. This movement is caused by improperly dried lumber material or shifts in ambient weather. Filling in a ceiling crack with caulking or joint compound, then painting over it, won’t guarantee the crack won’t reappear with the next change in temperature. You’ll have to fix that crack more carefully for the repairs to last.
