We have an unfinished basement. The top part of the wall is isolated from the ground by some sort of cardboard. This is not cardboard used for shipping boxes (which is corrugated), but is pretty much the same cardboard as found in hardcover books (at least older), but just pretty thick (3.5mm), dense and it seems to have some element-resistant features. One of such pieces was damaged by an animal while ago so I am looking for a piece to repair, but surprisingly, such material does not seem to be widely used. I checked in several Home Depot, Lowe's and Ace Hardware stores and nobody carry anything like that. Worst, nobody knows how it is exactly called. They sell Concrete Form Tubes, made from pretty much same material. Any help will be greatly appreciated.