We have an unfinished rough-surface wall in our upstairs bedroom, (see the photo)
Its surface looks covered in parallel plastic threads or fibers, with lots of sharp knots and some nail heads, glued to the wall. It was this way when we moved in.
We want to install a kids' bunk bed next to this wall. But first we need to "finish" (make smooth) the wall, otherwise the kids may injure themselves.
May we ask:
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How is this unfinished surface called – what keyword to search for?
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What is the right procedure to "finish" it – again, the keywords to search for?
Best Answer
That wall surface material looks like it is the backing of some older type wall covering that had a mesh material for adding strength or glue retention.
It is also possible that you are looking at the original wall covering itself that may be a straw or grass material that was woven into a mat and then glued to the wall in sheets.
A zoomed in closeup of your picture reveals that the wall covering is a grass or straw material that was woven with thin vertical threads. It is also clear that it was painted over!!
If that mesh material is covered with paint it will be very difficult to remove. If it is not painted over it may just be possible to lightly spray the wall with a mist of hot water from a squirt bottle to see if the old wall covering glue will soften. As it softens you should be able to scrape carefully with a "putty knife" and wipe away the excess glue with a sponge rinsed frequently in warm water.
A painted over surface like that would entail a lot more work. There are several possible alternatives: