I am interested in changing the wallpaper border that is in our Montana. I know others have done it and I would like some advice. I have been searching for my options and have found one or two patterns that interest me. Now, I need to know if there are any special considerations for attaching a new border on top of the original one. I assume you would need to paint sizing on top of the old border first for better adhesion. The new border is prepasted but I would probably use some wallpaper paste anyway. Any thoughts?