Join Date: Apr 2011
Location: Triad, NC (from the PNW)
I would also advocate (1) seeing if you can determine the cause and (2) consider adding a fake beam if you determine that the cause is of little to no concern.
Funny, I've got a similar crack in the ceiling of my rambler. It opens up a bit in winter, then closes back up in summer. There is no difference in height, just movement in the "joint". I've never tried to determine what the cause is as it has done this since we've had the house and never seems to get any worse over time (built in 1985, owned since 2007).
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