When renovating a space, homeowners often face the dilemma of whether to remove existing wallpaper before installing new tiles or to simply cover it up with a layer of tiles. While it may seem like a convenient and time-saving option, it’s important to consider the compatibility and long-term durability of such a combination. In this article, we will explore whether it is possible to install tile over wallpaper, examining the potential risks, advantages, and alternative solutions.
Assessing the Feasibility:
1. Structural Integrity:
The first concern when considering installing tile over wallpaper is the overall structural integrity of the wall. Wallpaper is typically applied to smooth, non-porous surfaces, which may differ from the ideal substrate for tile installation. Tiles require a sturdy and solid base to prevent cracking or dislodging over time. Therefore, it is crucial to assess the condition of the wall, ensuring it is suitable for tile installation.
2. Adhesion and Tile Bonding:
Adhesive compatibility is another key factor to consider. Wallpaper is often secured to the wall using standard wallpaper paste or adhesive, which may not provide sufficient bonding strength for tiles. The integrity of the adhesive will directly impact how well the tiles adhere to the wall, potentially leading to tiles coming loose or tile grout becoming unstable.
3. Moisture and Mold Concerns:
If the wallpaper is in a bathroom or kitchen, moisture becomes a critical issue to address. Bathrooms, in particular, experience high levels of humidity, which can eventually penetrate through the wallpaper, causing it to peel or develop mold. Introducing tiles over wallpaper without addressing moisture concerns can exacerbate these problems, leading to further damage and potential health hazards.
Potential Risks and Challenges:
1. Uneven Surface:
Wallpaper has a textured surface that may interfere with the evenness required for tile installation. Due to the irregularities caused by wallpaper, proper adhesion of tiles could be compromised, leading to an uneven or lumpy surface.
2. Tile Alignment:
When installing tiles over wallpaper, maintaining proper alignment is often challenging. The texture and pattern of the wallpaper may make it difficult to achieve straight lines and consistent spacing between tiles, resulting in an unprofessional and visually unappealing result.
3. Removal Difficulties:
The long-term consequences of installing tiles over wallpaper can be particularly daunting. If issues arise, it becomes much more challenging and time-consuming to remove both the tiles and the underlying wallpaper, compared to just removing the wallpaper alone. This may necessitate the use of harsh chemicals, causing more damage to the wall surface.
Alternative Solutions:
1. Remove the Wallpaper:
While it may require more time and effort, removing the existing wallpaper before tiling is often the recommended solution. By stripping the wallpaper, you ensure a clean, smooth surface to work with, allowing for proper tile adhesion and avoiding potential compatibility issues.
2. Install a Backer Board:
If removing the wallpaper is not possible or desired, installing a backer board over it can provide a suitable substrate for tile installation. This option offers a level and secure surface for the tiles, minimizing the risk of long-term damage or adhesion problems.
Although it may be tempting to install tiles directly over wallpaper for a quick fix, it is generally not advised due to potential risks and challenges. The structural integrity and bonding capabilities of the wall, moisture concerns, as well as the difficulties with surface smoothness and proper tile alignment, make it a less viable option. Ultimately, it is best to remove the wallpaper or install a backer board to create an optimal substrate for tile installation, ensuring a durable and visually pleasing result in the long run.