Hi all,
I am in the midst of finishing a three season room addition to my house. The floor is raised and insulated underneath and completely enclosed. Three walls are pretty much all windows. Plans are to insulate the walls and celings. I want to put up tongue and groove stained 5 inch boards on the celiling. I live in South Eastern Pa. Plans are not to keep this room heated. My question is whether I am going to have concerns about the ceiling boards warping in anyway because it won't be heated.

thanks.....