Putting wallpaper on wallpaper may seem easy and practical, but you might encounter some issues during the process. Can you place wallpaper directly over existing wallpaper? Which types of wallpaper are suitable for adhering new paper on top? We will explain in detail which adhesive to use when applying wallpaper over wallpaper.
Can I Put Wallpaper on Wallpaper Directly?
Yes, you can stick wallpaper on top of existing wallpaper. However, directly applying new wallpaper over old wallpaper can be risky. This risk persists during the application process and even after the new wallpaper has been installed, as not all wallpapers provide a suitable surface for adhesion.
To successfully apply new wallpaper over old wallpaper, it’s crucial to know the type of the existing wallpaper and to check its condition. Let’s delve into the potential issues and important considerations before applying new wallpaper over old wallpaper.
1-Avoid Wallpapering Over Vinyl Wallpaper
The surfaces of wallpapers can generally be made of fiber, vinyl, or fabric. Vinyl wallpapers are covered with a thin, shiny vinyl layer. The glossy and slippery surface of vinyl wallpaper can prevent the wallpaper adhesive from adhering properly. Therefore, if your existing wallpaper is vinyl, we do not recommend applying new wallpaper over it.
However, if the old wallpaper is non-woven, fabric, or paper, it is suitable for applying new wallpaper.
2-Check the Condition of the Old Wallpaper
By adhering new wallpaper over old wallpaper, you are taking a risk. To minimize this risk, ensure that the old wallpaper is in good condition. Verify that the old wallpaper is securely attached to the wall. If there are any bubbles or tears in the wallpaper, repair them before applying new wallpaper.
3-Have You Previously Applied Wallpaper on the Existing Wallpaper?
Layering wallpapers can lead to the peeling of the underlying papers because wallpapers are not designed for such applications. Additionally, layered wallpapers can reduce air circulation, leading to moisture and mold buildup indoors.
4-Consider Painting Instead
Your old wallpaper might be paintable. Instead of applying new wallpaper, painting over the old wallpaper can be an easier option. If there is no vinyl layer on the existing wallpaper, you can paint it with wall paint. However, remember to apply a color-blocking primer before painting.
Potential Risks When Applying Wallpaper Over Wallpaper
- Adhesive Failure: If the surface of the old wallpaper is slick or shiny, the adhesive for the new wallpaper may not hold. This is particularly true for vinyl wallpapers.
- Air Circulation Issues: Layering wallpaper can impede airflow, leading to moisture buildup and potential mold growth indoors.
- Bubbling and Tears: Existing bubbles or tears in the old wallpaper may become more pronounced after the new wallpaper is applied, compromising aesthetics.
- Poor Adhesion: If the old wallpaper isn’t securely attached, the new wallpaper may peel off or lift after application.
- Color Mismatches: The color of the old wallpaper may affect the appearance of the new wallpaper, leading to an undesirable look.
- Peeling of Old Papers: While applying the new wallpaper, there’s a risk that the old layers may peel away, impacting the overall quality of the installation.
- Time and Labor: Working with two layers of wallpaper can extend the application time and require more labor.
- Increased Costs: Issues encountered during the wallpapering process may necessitate additional repairs and materials, increasing overall costs.
How to Apply Wallpaper on Wallpaper?
If you have considered the above risks and are thinking about applying new wallpaper over old wallpaper, we recommend following these steps to ensure the best possible result:
- Ensure that the old wallpaper is not vinyl.
- Repair any imperfections such as tears, bubbles, or lumps in the old wallpaper.
- Remove any nails and fill nail holes with a filler compound. Then sand down to ensure a smooth surface for applying wallpaper.
- Confirm that the existing wallpaper is securely attached to the wall, as the old paper may come off while applying the new wallpaper.
- Clean your walls with a dust cloth followed by a damp cloth.
- You may remove electrical outlets while applying the new wallpaper.
- Apply wallpaper primer.
- Choose a high-quality wallpaper adhesive.
