I recently started remodeling a frame house build in the 60's. We repaired all the sheetrock and blew mud on the the ceiling and walls and it was not a heavy coat. Several weeks after it was dried and painted we started seeing cracks mainly in the ceiling but some on the walls.
The cracks in the ceiling did not follow the tape lines. They may be in middle of the sheet and cruvey. We went into the attic and place boards across the cracks between the joist and screwed the sheetrock to the boards. Now a week later we are getting new cracks and now on the walls. The cracks on the walls are the type that will show when the house settles.
We have had a real hot and dry summer but then we started getting 1 to 2 inches of rain at a time. The latest cracks showed up after the rain. I have seen cracks along the seams but never in the middle of the sheets. what could be causing this? I hope I dont have to resheetrock the entire ceiling.