Posted by LARRY BROWN on September 08, 2001 at 15:41:28:
In Reply to: Re: Drywall joint separation posted by Scott on March 27, 2001 at 13:20:25:
High Humidity in your attic can cause the ceiling joists to swell and expand thus cracking the joint tape. Attic Exhaust fans are little use when the dewpoint is in the 70s.
suggestion: add more insulation in your attic.
: I don't know of an easier way but I do wonder why you are getting that much movement. That's extremely odd.