Can you cover plaster walls with drywall?

Plaster walls have been a popular choice for interior finishes for centuries due to their durability and aesthetic appeal. However, as time goes by, these walls may crack, deteriorate, or lose their charm. One option many homeowners consider is covering the plaster walls with drywall. In this article, we will explore whether it is possible to cover plaster walls with drywall, examining the benefits, potential challenges, and steps involved in the process.

Benefits of Covering Plaster Walls with Drywall

Before delving into the practicalities, it is essential to understand the advantages of covering plaster walls with drywall.

1. Improved appearance: Drywall provides a smooth and seamless surface, which can greatly enhance the aesthetics of a room. If your plaster walls have unsightly cracks, discoloration, or peeling paint, covering them with drywall can give your space a fresh and updated look.
2. Enhanced insulation: Plaster walls may not provide the same level of insulation as drywall. Utilizing drywall can increase the thermal and acoustic insulation, resulting in a more comfortable living environment while potentially reducing energy bills.
3. Easy maintenance: Drywall is relatively easier to clean and manage than plaster walls. It can be painted, textured, or wallpapered to suit your preferences, and any damages or repairs can usually be resolved more seamlessly than with plaster.

Potential Challenges

Although the idea of covering plaster walls with drywall sounds appealing, it is important to consider the potential challenges and limitations associated with this process.

1. Space reduction: Adding a layer of drywall onto existing plaster walls will slightly decrease the room’s overall square footage. This might be a consideration if the room is already small and space is a premium.
2. Structural concerns: Plaster walls are often quite thick and heavy, while drywall is relatively lightweight. The additional weight of the drywall could potentially strain the underlying structure if it is not adequately reinforced.
3. Existing wall issues: Covering plaster walls with drywall is not a solution for addressing underlying wall problems such as water damage or structural issues. Before attempting to cover the plaster, these issues should be addressed and resolved to avoid further damage down the line.

Steps Involved in Covering Plaster Walls with Drywall

If you decide to proceed with the project and cover your plaster walls with drywall, the following steps generally outline the process:

1. Assess the existing plaster walls: Inspect the condition of the plaster walls, identifying any notable cracks, damages, or uneven areas. Ensure the walls are securely attached to the underlying structure.
2. Preparing the surface: Clean the plaster walls and remove any loose or crumbling elements. Fill in any cracks or holes with joint compound or plaster patching material. Sand the walls to create a smooth surface for the drywall installation.
3. Measuring and cutting drywall sheets: Measure the dimensions of the walls carefully and cut the drywall sheets accordingly. While doing this, take note of any outlets, switches, or other wall fixtures that will need appropriate cuts to accommodate them.
4. Securing the drywall: Use construction adhesive or screws to secure the drywall to the plaster walls. Ensure that enough adhesion is provided to prevent the drywall from sagging or falling.
5. Seam and corner treatment: Apply joint compound to cover the seams between the drywall sheets, as well as the corners. Use joint tape to reinforce the seams, and then smooth out the compound with a trowel. Repeat this process until all seams and corners are properly covered.
6. Cosmetic finishing: Once the compound is dry, sand the seams and corners to create a seamless finish. Prime the entire surface and apply multiple coats of paint or your desired finish to complete the project.

Covering plaster walls with drywall can be a viable option to rejuvenate your space while addressing potential issues with the existing plaster. However, it is essential to be mindful of the potential challenges and limitations that may arise during the process. By following the outlined steps and consulting with professionals if necessary, you can transform your space, enhancing its appearance, insulation, and overall value.