Thanks, do you what humidity is acceptable? The cracks are almost identical to ones in the OP, they are located between the wall and baseboard. The cracks between the ceiling and the beams/vents are less pronounced and are under the paint, however you can see them quite clearly. Those cracks are similar to haircracks on a cracked phone but are significantly longer compared to the cracks between the baseboard and wall.RichmondCA wrote: ↑ First you need to run a humidity meter to see whether or not your unit is too dry. It is common to get small cracks in caulking in the winter. Need pics for context, it's possible (as mentioned in this thread) if the windows weren't installed properly/thermally sealed, allowing air leakage.
That said based on the cracks in the OP those look pretty big and would be of concern. Cracks from low humidity in the air in the winters don't cause 1/4-1/2" gaps (unless you are running very dry for prolonged periods of time, but then you'd have a lot more issues).
Koodo, Public Mobile, Lucky Mobile Customer