How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
Can a crack between the wall and ceiling be caused by the house sinking?
Monday, February 14, 2022
Cracks along the line where the ceiling and walls meet can be caused by settlement of the floor slab or supporting piers below an elevated wood floor, but usually there is a separation between the baseboard and floor first, along with stress cracks emanating diagonally from the corners of doors—like in the photos below—before any ceiling/wall crack lines appear. Someone tried to artfully conceal the widening gap at the floor here with caulk, but it is still very evident.
If the split is just along the ceiling/wall line, and your roof structure is wood trusses, it is more likely due to a phenomenon called truss uplift. See our article What causes cracks to open along the line between the ceiling and walls? for details.
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