All Things Wood: Unpredictable Nature and Cause of Cracks at Gypsum Panel Ceiling Joints Perpendicular to Framing Frank Woeste and Joseph Loferski Introduction In some arid parts of the Southwest, the occurrence and recurrence of cracks at taped gypsum panel (drywall) joints between panels in residential projects have been reported in trade magazines since the mid-1990s. In some homes of a project, one or two cracks or ridges appear at... Read More January 2020 Issue #12246 Page 60