We have 2-over-2 paneled interior doors in our 125 year old Italianate house. We have only lived in the house for 2 years, but now for the first time I am noticing that many of the panels are getting severely cupped.
I am surprised because now the house is at its maximum dryness and I would have expected more cupping during the summer as the panels expand against the door frame.
Is it natural to have such cupping and if so what would be causing it?
I assume that since the house is so old and since I didn't notice the cupping in the summer months that this is just cyclical and will resolve when the humidity returns, right?
Thanks