While installing corner bead on unfinished drywall is commonly practiced, it is also possible to install it on finished drywall. However, there are a few considerations and challenges to keep in mind.
Assessment and Preparation
Before proceeding with installing a corner bead on finished drywall, it is important to assess the condition of the wall and determine if it is suitable for the task. Check for any imperfections or damage in the corner area that may hinder the installation process or affect the final result. If there are any issues, it is recommended to address them first before proceeding.
Surface Preparation
To ensure proper adhesion of the corner bead, the surface of the finished drywall needs to be prepared accordingly. Start by cleaning the corner area, removing any dirt, dust, or debris. Use a damp cloth or sponge to wipe down the surface. If there are any loose or peeling paint or drywall compound, gently remove them using a putty knife. Once the surface is clean and free from imperfections, it is ready for the installation.
Installation Steps
- Choose the Right Corner Bead: Select a corner bead that matches the dimensions of your corner and complements the existing finish of your wall.
- Apply Adhesive or Joint Compound: Apply a thin layer of adhesive or joint compound to the corner area, ensuring that it covers the surface where the corner bead will be installed.
- Install the Corner Bead: Place the corner bead onto the adhesive or joint compound, aligning it with the corner. Press it firmly into place, ensuring that it is securely attached to the wall.
- Secure the Corner Bead: Depending on the type of corner bead you are using, secure it further by applying screws, nails, or additional adhesive as per the manufacturer’s instructions.
- Finish the Corner: Apply a layer of joint compound over the corner bead, feathering it out onto the surrounding wall to create a smooth transition. Allow the compound to dry fully and then sand it down to create a seamless finish.
Final Thoughts
While it is possible to install a corner bead on finished drywall, it requires careful assessment, thorough surface preparation, and attention to detail during the installation process. If you are not confident in your DIY skills or unsure about the outcome, it is always advisable to consult a professional drywall contractor who can provide expert advice and assistance.