When it comes to renovating or building a shower, many homeowners wonder if they can put backer board on a tiled shower floor. Backer board, also known as cement board, is a popular material used for tiling showers and other wet areas. It provides a stable and waterproof surface for tile installation. However, there are a few key factors to consider before deciding whether or not to use backer board on your tiled shower floor.
Understanding Backer Board
Before we delve into the question at hand, let’s briefly discuss what backer board is and what it’s used for. Backer board is a cement-based panel that is commonly used as an underlayment for ceramic tile installations. It is made of a mixture of cement, sand, and fiberglass mesh or cellulose fibers.
Backer board serves as a stable and rigid surface that helps support the weight of the tiles and prevents moisture infiltration. It is often used in showers, bathrooms, and other areas where water exposure is common. Backer board helps to create a durable and long-lasting tiled surface.
Benefits of Using Backer Board on a Tiled Shower Floor
There are several benefits to using backer board on a tiled shower floor:
- Stability: Backer board provides a stable base for tile installation, reducing the risk of cracks or shifting.
- Waterproofing: Backer board is moisture-resistant, which helps prevent water damage and mold growth in the subfloor or walls.
- Durability: Backer board is a strong material that can withstand the weight and pressure of tiles, ensuring the longevity of your tiled shower floor.
- Easy Installation: Backer board is relatively easy to install, especially when compared to other methods such as mortar beds.
Considering the Existing Subfloor
One important factor to consider before using backer board on a tiled shower floor is the type of existing subfloor. Backer board is typically installed on top of a plywood or OSB subfloor. However, if your shower has a concrete subfloor, it may not be necessary to use backer board. Concrete is already a stable and waterproof material, and tiles can be directly adhered to it using a suitable tile adhesive.
In some cases, the use of backer board on a concrete subfloor can actually raise the height of the shower floor, potentially causing issues with the surrounding flooring or drainage.
Examining Local Building Codes
Before proceeding with any tiling project, it is crucial to consult and abide by local building codes. Some building codes may dictate specific requirements for shower floor installations. In some areas, using backer board on a tiled shower floor may be mandatory, while in others, it may not be required. Compliance with local building codes will ensure the safety and longevity of your shower installation.
Alternative Options to Backer Board
If using backer board on a tiled shower floor is not feasible or necessary for your specific situation, there are alternative options available. Some of these options include:
- Schluter Systems: Schluter Systems offers products specifically designed for tiled shower installations. Their products include preformed shower trays and shower kits, which eliminate the need for backer board while still providing a waterproof and stable surface for tiles.
- Mortar Beds: A traditional method for tile installation is using a mortar bed as the base for your shower floor. Mortar beds are created using a mixture of sand, cement, and water. This method requires more time and skill to install properly but can be a viable alternative to backer board.
The use of backer board on a tiled shower floor is a popular and effective method for creating a stable and waterproof surface. However, it is essential to consider factors such as the existing subfloor and local building codes before proceeding. If backer board is not suitable for your situation, alternative options such as Schluter Systems or mortar beds can be considered. Ultimately, consulting with a professional tile installer or contractor can help you make the best decision for your specific shower project.