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Old wallpaper—older than twenty years—is usually made of vinyl with a paper backing, which is more difficult to remove than newer, non-vinyl wallpaper. The vinyl layer on top prevents water and stripping solution from penetrating the glue and backing underneath, slowing down the removal process.
Removing old wallpaper is a time-consuming process, no matter what removal method you choose, but there are a few ways to speed up the process.
Using a steamer is a very effective method for removing old wallpaper that won't come off from scraping alone. If you've already tried soaking and painfully scraping the walls over and over, unsuccessfully, renting a steamer is your best bet.
With a wallpaper removal steamer, you won't have to soak the walls constantly like you would using the hot water method, and you won't have to puncture holes in the wall with a scoring tool. Using a steamer still involves scraping to remove glue and backing, but the process is less messy than using water alone.
A wallpaper steamer is equipped with a heating pad that you hold against the wall to loosen the glue through continuous heat. Once the heated wallpaper begins to bubble and lift from the surface, a scraper is used to remove the material underneath. This process is easier than having to constantly refill buckets of hot water to soak the wall.
Wallpaper removal solution, or stripper, can definitely work, but these products are expensive, and sometimes hot water is all you need. First, shut off the power to the outlets so you don't get electrocuted. Use a work light and an extension cord, plugged into another room, for a light source while working.
Try soaking the walls with a sponge and hot water until the paper shows signs of bubbling. If the top layer of the wall-covering is vinyl, hot water probably won't work without scoring the surface first. You can use a wallpaper scoring tool to puncture the surface with tiny holes so the hot water can seep in.
Wait about ten minutes for the water to penetrate and bubble the wallpaper. Try peeling off the top layer, starting at a corner, or seam. Keep soaking the wall with hot water to keep the surface wet for easier scraping. Removing old wallpaper with hot water has worked very well for me several times, but sometimes chemicals are needed.
I always try plain old hot water before resorting to chemicals, but if water alone isn't doing the trick for you, try the fabric softener from your laundry room. Fabric softener dilutes and loosens wallpaper backing so the glue is easier to scrape off.
The best way to remove wallpaper with fabric softener is to mix it with hot water in a cheap garden sprayer and spray the wall. Score the wall first if necessary. Give the fabric softener solution time to penetrate before scraping. Repeated applications might be necessary.
Wallpaper stripper is another solution if you're having a hard time removing old glue from the wall. Mix the stripper with hot water in a garden sprayer, applying the solution the same as you would the fabric softener. Carefully rinse the walls with clean water before painting the room. Chemical residue can cause adhesion problems with paint if it's left on the wall.
A wallpaper scoring tool is a hand-held device used for perforating the surface so water can penetrate the backing underneath. With vinyl wallpaper, water won't be able to penetrate the backing underneath without scoring the surface first.
The mistake people make is using a scoring tool when one isn't needed. Sometimes you can simply soak the top layer of wallpaper with hot water, peel off the top layer from a corner, and then soak and scrape off the backing layer underneath separately. This isn't always possible with older wall-covering, but you should always try do it that way first.
The problem with scoring tools is they easily damage drywall if you push too hard. The tiny spikes on the tool puncture holes everywhere, which need to be patched before painting. These tools are effective though for thicker material that won't allow water to soak behind it.
If you've tried everything, but removal seems impossible, you might want to consider painting over the wallpaper instead. This should always be the last resort, but you can successfully paint over wallpaper without any problems if the material on your walls isn't loose or bubbled.
In an older home with extremely old wallpaper that won't come off no matter what, another option is to replace the drywall. Excessive scraping and repeated water applications can severely damage drywall. Sometimes it's easier to remove the drywall and start over.
© 2018 Matt G.