How To Remove Wallpaper From Plasterboard. Wait about 10 minutes and then scrape off the paper with a putty knife. In some small patches its come off pretty clean in others there are bits of stubborn paper that cant be shifted without destroying the wallboard and there are large areas where the top layer of the plasterboard paper has come off with the paper leaving a brown furry paper.
As you pull and scrape the wallpaper off layers of paint will probably chip away creating a huge mess on your floor--hence the need for drop cloths. Leave the wallpaper soaking for 30 minutes since the sheets protect the drywall from water damage. Use a scoring tool to create holes in the wallpaper.
Work in small areas and hold the steamer on the wallpaper surface to allow the steam to penetrate and soften the glue.
Spray water into the slits so it can work its way behind the covering. Spray the wall with the wallpaper stripper using a spray bottle or compression sprayer. A special tool is used to remove wallpaper from plaster walls. Our walk-in closet is THE last space in my house where wallpaper exists and in this video Ill walk you through how to remove wallpaper easily and to rep.