I hung this wallpaper 30+ years ago in a 2-room bathroom. In the sink room, the paper held up beautifully. In the toilet / tub room, over the shower and in a few areas up high (where humidity collects), some seams had curled back.
What’s the difference? Two main things – composition and humidity.
In the sink room, the wallpaper was a solid vinyl. But the backing was a thin paper, or possibly a thin non-woven (part synthetic) material. In the tub room, the backing was a gritty yellowish manilla type material.
This stuff is thick, and it will continue to wick up humidity through the seams, and that leads to expansion and then shrinking as the moisture dries. Over time, that will cause the paper to curl back on itself. Sometimes, the vinyl surface actually delaminates and separates from the paper backing. In this case, both backing and surface have curled away from the wall.
I really dislike these low-end papers, and encourage clients to not purchase them. Especially not for wet areas in bathrooms. In addition to the potential to curl up, the seams never look good.
Luckily, there are plenty of viable alternatives. Wallpapers with a paper backing, or a non-woven , will hold up much better.
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