These are the same basic steps you’d use for any pre-pasted wallpaper. It seals the drywall paper so the wallpaper adhesive doesn’t soak in. High humidity, including after the paper is installed, can also lead to peeling, so avoid installing wallpaper in a bathroom with a shower. AdvertisementWith pre-pasted wallpaper, shelf life can also be an issue. Many wallcovering professionals routinely do this with all pre-pasted wallpaper they install, as cheap insurance against problems.

Source: Washington Post May 12, 2023 14:01 UTC