I don't think that is a wall covering. The inner wall surface is part of the panelling that is used to make the wall sandwich. It is literally a part of the wall.
You might consider using a complementary wall covering to cover up that area. I would peel off the border trim first so it doesn't leave a bump underneath and then paper over the whole area behind the sofa.
__________________
2011 Jayco X19H (purchased 2015)
2008 Jayco 1007 PUP (purchased new, traded for the X19)
2018 Nissan Titan Midnight Ed.
|