Can You Use Tile Backer Board Outside Of Shower Walls And Tiles

Can You Use Tile Backer Board Outside Of Shower Walls And Tiles?

Tile backer board is a crucial component in tiling installations, providing a stable and waterproof base for tiles. Traditionally used in wet areas like showers and bathrooms, its versatility extends beyond these confines. This article explores whether tile backer board can be employed outside of shower walls and tiles, examining its suitability and potential applications.

Understanding Tile Backer Board

Tile backer board is a cement-based board designed to create a smooth, level surface for tiling. It is typically made from a mixture of cement, sand, and fiberglass, offering exceptional strength and moisture resistance. The board is available in various thicknesses, with 1/4-inch and 1/2-inch being the most common. Its primary purpose is to provide a stable base for tiles, preventing cracking, movement, and water damage.

Suitability for Outdoor Use

The suitability of tile backer board for outdoor applications depends on several factors, including the climate and exposure to moisture. In general, tile backer board is not recommended for areas that are constantly exposed to moisture, such as rain, snow, or standing water. The cement-based composition of the board can absorb moisture, leading to degradation and potential failure. However, in areas with limited moisture exposure or in sheltered locations, tile backer board can be used with appropriate precautions.

Precautions for Outdoor Use

If using tile backer board outdoors, certain precautions must be taken to ensure its longevity and prevent moisture damage. These precautions include:

Proper Sealing: The tile backer board should be sealed with a waterproof membrane or paint to prevent moisture penetration. This will create an additional layer of protection and reduce the risk of water absorption.
Controlled Moisture Exposure: Limit the exposure of tile backer board to moisture by installing it in sheltered areas or using overhangs to minimize direct rainfall or snow. Avoid placing the board in areas where it will be constantly submerged in water.
Adequate Drainage: Ensure proper drainage away from the tiled area to prevent water from pooling around the backer board. This can be achieved by sloping the underlying surface or installing a drainage system.
Limited UV Exposure: Protect the tile backer board from prolonged UV exposure by covering it with tiles or paint. UV rays can degrade the cement-based composition of the board over time.

Potential Applications Outside Shower Walls and Tiles

While tile backer board is primarily used in shower walls and tiles, it can also be employed in other outdoor applications with limited moisture exposure and proper precautions. These applications include:

Exterior Tile Installations: Tile backer board can be used as a base for tiling on exterior walls, patios, and balconies. However, it should be sealed and protected from moisture as discussed earlier.
Countertops: Tile backer board can be used as a substrate for outdoor countertops, providing a stable and waterproof base for tiles. Again, sealing and moisture protection are essential.
Fire Pits: Tile backer board can be employed as a base for fire pits, creating a non-combustible surface for tiles. It should be protected from direct fire and heat.

Conclusion

Tile backer board is a versatile material that can be used in various applications, including outdoor installations. However, its suitability for outdoor use depends on the climate, exposure to moisture, and the implementation of appropriate precautions. By following the guidelines outlined in this article, tile backer board can enhance the durability and longevity of tiled surfaces in sheltered outdoor areas.