Backer board is a must-have material when it comes to protecting walls from moisture damage, especially in high-humidity areas such as bathrooms and kitchens, While Hardie backer board is a well-known option, homeowners and contractors have several other choices, including Allura. This guide explores the best alternatives to Hardie backer board, comparing their features, benefits, and applications to help readers make an informed decision for their next home improvement project.
What Is Backer Board?
Backer board is the base layer behind walls, floors, ceilings, and countertops. It doesn’t contain organic materials, so the layer is less likely to break down or rot when compared to drywall, which contains wood.
As a result, backer board also provides a water-resistant barrier that protects the underlying structure from moisture damage, such as spills, high humidity, and weather exposure. It’s often used in kitchens, bathrooms, laundry rooms, and even outdoor spaces — all areas prone to excess moisture.
Benefits of Fiber Cement Backer Board
Both Hardie and Allura’s fiber cement backer board products have several advantages that make them a popular choice among homeowners and professionals:
- Water and mold resistant: Fiber cement backer board is 100% waterproof. The unique composition of fiber cement makes it naturally resistant to mold growth. Without this protective layer, rot and mold are more likely to cause thousands of dollars in home damage.
- Easy to install: These products are designed for easy handling and installation. They’re easy to cut to size with the score and snap technique, similar to drywall. This makes fiber cement backer board an attractive option for DIY enthusiasts who don’t want to hire extra labor.
- Smooth surface: Fiber cement backer board’s flat, non-porous surfaces offer flexible adhesion for various topside materials, including tile, paint, wallpaper, stone veneer, and more.
- Fire-resistant: Both Hardie and Allura fiber cement backer board have a Class A fire rating, the highest rating possible.
Top Alternatives to Hardie Backer Board
While Hardie backer board is a popular choice, several options offer comparable or even superior performance in certain aspects.
Allura Fiber Cement Backer Board
Allura backer board stands out as a top alternative to Hardie backer board. The major benefit is its multiple thickness options. When working in tight spaces, measurements matter. Hardie board is only available in standard dimensions. Allura, however, is available in both ¼-inch and ½-inch thicknesses.
Cement Board
Cement board is another popular alternative to Hardie backer board thanks to its excellent moisture resistance, durability, and flexibility for both interior and exterior applications. Cement boards can support heavy tiles without warping or deteriorating. However, they’re much heavier and harder to cut than Allura and Hardie options.
If you use cement board for your project, we recommend comparing Durock, HardieBacker, and Wonderboard.
Glass Mat Gypsum Board
Glass mat gypsum board, such as Georgia-Pacific’s DensShield, combines the water-resistant cement board core with a lightweight fiberglass mat surface. Easy to cut and handle, the material is an ideal choice for those seeking an effective and manageable substrate for tiling.
Foam Board
Foam backer boards, such as Schulter’s KERDI-BOARD or those made by Wedi, are lightweight and highly water-resistant alternatives. They’re easy to cut and install, and their insulating properties are beneficial in certain applications. However, they aren’t suitable for all tile types or areas with heavy loads.
Choosing the Right Backer Board for Your Project
When selecting a backer board alternative, consider the following factors:
- Application area: Different areas of the home require specific properties from a backer board. For instance, shower walls will benefit from a highly water-resistant option while floor applications could require the strength of cement boards. Backer board in outdoor spaces need to withstand fluctuating temperatures, weather exposure, and potential water contact.
- Topside material and weight: Heavier tiles or natural stone require a sturdier substrate, such as cement board or fiber cement board.
- Installation processes: For DIY projects, fiber cement, glass mat gypsum, and foam boards are easier to handle than cement boards. Homeowners should also evaluate their skill level and the complexity of the project.
- Moisture resistance: In areas with high humidity or direct water exposure, including kitchens and bathrooms, prioritize backer boards with superior moisture resistance to prevent potential water damage and mold growth.
Final Thoughts About Alternatives to Hardie Backer Board
While Hardie backer board has long been a go-to choice for many contractors and homeowners, the market now offers several high-quality alternatives that can meet or exceed its performance in various applications. From Allura’s fiber cement board to specialized options, including foam board for lightweight installations, there’s a suitable alternative for every project.
