When it comes to renovating or updating interior walls, one common question that arises is whether it is possible to plaster over wallpaper. While plastering over wallpaper may seem like a convenient solution to hide outdated or damaged wallpaper, it is important to consider several factors before proceeding with this technique. In this article, we will explore whether plastering over wallpaper is a viable option, discussing the advantages, limitations, and potential issues associated with this approach.
Advantages of Plastering Over Wallpaper:
Plastering over wallpaper can offer several advantages, making it an attractive option for homeowners looking to update their walls without removing existing wallpaper.
1. Time and cost-efficient:
One of the primary advantages of plastering over wallpaper is the time and cost savings associated with this method. Removing wallpaper can be a labor-intensive process that involves scraping, steaming, and, in some cases, applying chemical solvents. Plastering over wallpaper eliminates the need for this time-consuming task, reducing the overall renovation timeline and potentially saving on labor costs.
2. Hiding imperfections:
Another advantage of plastering over wallpaper is the ability to mask imperfections on the wall surface. If the existing wallpaper has minor flaws, such as small cracks or bumps, applying a layer of plaster can help create a smoother and more even finish, making it an ideal solution to achieve a polished look without extensive wall preparation.
Limitations and Considerations:
1. Wall condition:
Before deciding to plaster over wallpaper, it is crucial to assess the condition of the underlying wall. Plaster adheres best to a stable and solid surface. If the existing wallpaper is peeling, loose, or has moisture damage, it is advisable to remove it before plastering. Plastering over unstable or damaged wallpaper can result in a poor bond and eventual failure of the plaster.
2. Wallpaper thickness:
The thickness of the wallpaper should also be taken into account. Thin and low-profile wallpapers are generally more suitable for plastering over since they create less buildup and the plaster can adhere more effectively. Thicker wallpaper may not bond securely with the plaster, leading to potential cracking or delamination.
3. Pattern visibility:
Another consideration when plastering over wallpaper is the visibility of the underlying pattern or texture. If the existing wallpaper has a prominent pattern or texture, this may show through the plaster, creating an uneven or undesirable finish. Smooth or subtly patterned wallpaper is generally more suitable for plastering over if a seamless and uniform surface is desired.
Potential Issues:
1. Weakened wall structure:
Plaster is typically heavier than wallpaper, so applying a layer of plaster over wallpaper may add weight to the wall. This additional weight can put stress on the wall structure, potentially causing issues such as cracking or sagging over time. It is crucial to consider the structural integrity of the wall and consult a professional if unsure about its ability to withstand the added weight.
2. Difficulty in future removal and maintenance:
Plastering over wallpaper can make future removal more challenging. If the desire to remove the plaster arises in the future, it may require additional steps and increased effort. Furthermore, repairing or maintaining the wall beneath the plastered surface might also prove more difficult since the plaster layer needs to be addressed first.
While plastering over wallpaper can offer time and cost savings, as well as the ability to hide minor imperfections, several factors should be considered before opting for this method. The condition and thickness of the wallpaper, the visibility of the pattern, and the structural integrity of the wall should all be evaluated to ensure a successful and long-lasting result. It is advisable to consult a professional to assess the feasibility and suitability of plastering over wallpaper in specific circumstances.