Before diving into the topic, it is important to understand what drywall bead is. Drywall bead, also known as corner bead or edge bead, is a protective strip made of metal or plastic that is installed on the edges of drywall. It helps create a clean, straight line and protects the corners from damage. It is typically used to reinforce edges and corners before applying joint compound and sanding for a seamless finish.
In theory, it is possible to install drywall bead over wallpaper. However, it is important to consider certain factors before attempting this approach.
1. Adhesion and Stability:
One of the main concerns when installing drywall bead over wallpaper is the durability of the installation. Since wallpaper is not designed to support the weight of drywall bead, it may not provide a stable surface for the bead to adhere to. Over time, the weight and pressure exerted by the bead may cause the wallpaper to peel away from the wall, leading to an unsightly and potentially hazardous situation.
2. Smooth and Even Surface:
Another issue that may arise when installing drywall bead over wallpaper is achieving a smooth and even surface. Wallpaper can have an uneven texture, which can affect the seamless installation of the bead. If the wallpaper has any imperfections, such as bubbles or loose edges, it can create a bumpy surface and compromise the final result.
3. Moisture Concerns:
Moisture can also be a concern when installing drywall bead over wallpaper. If the wallpaper is not moisture-resistant, it may absorb any moisture that comes into contact with it, such as water from joint compound or paint. Over time, this can lead to mold or mildew growth, compromising not only the paper itself but also the integrity of the drywall bead installation.
The Pros and Cons of Installing Drywall Bead over Wallpaper:
While installing drywall bead over wallpaper may seem like a convenient option, it is essential to weigh the pros and cons before making a decision.
Pros:
1. Time-saving: Installing drywall bead over wallpaper eliminates the need for wallpaper removal, saving time and effort.
Cons:
- Unsightly appearance: Wallpaper is not designed to withstand the weight and pressure of drywall bead, which may result in a compromised appearance.
- Reduced adhesion: Wallpaper may not provide a stable surface for drywall bead to adhere to, potentially leading to peeling or detachment over time.
- Uneven surface: The uneven texture of wallpaper may compromise the smooth and even installation of the bead, resulting in an unprofessional finish.
- Moisture concerns: Wallpaper may not have moisture-resistant properties, making it prone to damage and mold growth when exposed to moisture from joint compound or paint.
While it may be theoretically possible to install drywall bead over wallpaper, it is generally not recommended. The potential issues with adhesion, stability, surface smoothness, and moisture concerns outweigh the convenience of avoiding wallpaper removal. To ensure a high-quality and professional finish, it is best to remove the wallpaper before installing drywall bead.