Fixing a peeling wall

[swimmer_spe]

What looks like either wall paper, or one layer of plywood that has de-laminated. I know the cause was water. The leak has been fixed and is no longer a problem.

What are my options to fix it.
I tried to just spray glue on it, but, either I did it wrong, or it just won't hold.

It doesn't have to be that pretty, but it does need to stop peeling and no longer look peeled.

[3_tons]

You might try 3M aerosol contact cement available at auto body supply shops...

[maillemaker]

You can try it. Not sure how you will get the glue in behind it. But if you can get glue in there, sure.

[swimmer_spe]

OP here, So, I cannot just glue it back in place? It's about 4' square and has a window at the bottom of it.

[maillemaker]

When I had a water leak, it damaged the luan of the wall. It was "crunchy" if you poked your finger at it.

I used a metal scraper tool to carefully pry/rip off the old luan and then I used contact cement to glue wood paneling in its place. I did the same inside the shower except I used fiberglass paneling there.

[alfredmay]

If it were me I would either remove the luan that is there or cover over the old luan with new. Luan is 1/8 inches thick. If the luan is stapled to the wall use staples to make it adhere. You can then paint or paper with a vinyl type wall covering.

[Dick_B]

How large an area. Would a picture frame or wall hanging work?

[ksg5000]

When I had similar issue I removed the old wallpaper - made sure the area was bone dry and then applied a stain blocker type white paint. I then found new matching wallpaper and applied using std wallpaper paste.