My house is a mid century modern and has huge over hangs around the whole outside of the house. The beadboard matches the pattern in the sofeting under the eves, so it brings the outside in.
The dark panels at the top are insulation we put up in the winter as this whole wall is glass and faces the woods. You can see why I want to cover up the ceiling board. I will put an under layer of insulation between the beadboard and the ceiling board. Anything to keep the heat in, I had a $500.00 gas bill last month!