Backer boards are commonly misunderstood but I would say unsung hero of many construction and remodeling projects. Whether you are working on a bathroom remodel, tile project or just general part of your house, backer boards play a critical role in assuring being long-lasting and sturdy. But what is a backer board anyway and why is it so important?
Thank you for reading this post, don't forget to subscribe!Read on to learn all about backer boards, including types, uses, installation tips, and maintenance practices. By the time you’re finished reading you’ll be an expert on how to use backer boards in your next build.
What Is a Backer Board?
Dic Notetaker_backer board: a thin, but very strong building material that is used as the base for tile, stone, or other surface materials. Backer boards provide a solid, water resistant base, which in turn prevent tiles from cracking or creeping over time.
Common Uses of Backer Board
Tiling Projects: Suitable for Bathroom Walls, Kitchen Backsplashes, and special flooring projects requiring additional support of tiles.
Wet Locations: Yes when used in showers, tubs, or in a location where there may be moisture.
Walls And Counters: Creates a rigid foundation for setting materials such as stone veneer or slabs while aiding in the even distribution of weight and support over the lifetime of the project.
Benefits of a Backer Board
Resistant To Moisture: Resists mold and mildew growth under tiles.
Sturdy: Very durable which means that it can take some weight and is unlikely to crack or break.
User-Friendly Installation: Lighter options are easier to install — even for DIYer do-it-yourselfers.
Types of Backer Board
All backer boards were not made equal. It is important to know what type you need before you start a project in order for the final product to be professional and reliable.
Cement Backer Board
This is the classic go-to backer board for professionals. It is made out of cement and reinforced with fiberglass mesh.
Features:
- Hard-wearing and water proof.
- Perfect for wet areas such as bathrooms and kitchens.
- Suitable for tiles, stone and other materials.
Best For:
- Shower, tub surounds, floors and walls in highly moist spaces.
Fiber Cement Backer Board
Fiber cement is comprised of a mixture of cement, sand and cellulose (wood fibers). It has the same advantages as cement board but is a little easier to cut and install.
Features:
- Gives moisture resistance along with a little flex.
- Thicker than competitors’ gypsum products for added strength.
Best For:
- Insides of buildings on floors and walls, particularly in damp locations.
Gypsum Backer Board
Gypsum backer boards are lightweight and easy to work with, so they are commonly found in commercial applications. But they are not as water-resistant as cement-based solutions.
Features:
- Light and simply cut and handled.
- Not rated for heavy water content.
Best For:
- Low-moisture rooms like living rooms, hallways or wall installations.
How to Choose the Perfect Backer Board For Your Next Tiling Job
If you get it wrong, you may end up with expensive repairs. Look for these factors to choose the best backer board for you:
Moisture Level: If you are using it in high-wetness areas: those are showers or bathrooms – that keep the cement or your fiber cement boards that because of their water resistance properties.
Material Type/Compatibility: Make sure the backer board will work with the material you want to use, whether it’s tile, marble, or something else.
Handling: If you’re a do-it-yourselfer, you may opt for gypsum or fiber cement boards because they are lighter weight than the others.
Size: Plan for the correct board thickness for your project needs. Thicker boards are usually needed for floors rather than walls.
How to Install Pre-Formed Backer Board
Step 1: Apply Thinset Caulk Lines
Apply thinset caulk lines about the edge and an “X” across the back of each piece.
The prospect of installing backer board may be daunting, however with the proper preparation and tools, you can do it with a professional touch.
Tools You’ll Need
- Backer board sheets
- Measuring tape
- Utility knife or scoring tool
- Drill and backer board screws
- Thin-set mortar
- Notched trowel
How to Prepare the Subfloor/Surface
Step 1: Prepare the Subfloor/Surface
And make sure the surface you’re working on is clean, flat and dust-free. The backer board needs a good base.
Step 2: Measure and Cut
Please measure Your installation space. Trim the backer board sheets to size using a utility knife or scoring tool. Wear a mask at all times during cutting to prevent inhalation of dust.
Step 3: Apply Thin-Set Mortar
With a notched trowel, spread thin-set adhesive over the area to receive backer board. This serves to anchor the borad to the subfloor or wall.
Step 4: Secure with Screws
Set the backer board into the thin-set mortar and fasten it in place with backer board screws. Screw every 6 to 8 inches along the edges and across the middle of the board for support.
Step 5: Tape Joints
Use fibreglass mesh tape on the seams between the backer boards together. Spread thin-set mortar over the tape and smooth with the rest of the surface for a uniform finish.
Step 6: Dry and Check
Allow the backer board and the thin-set mortar to dry thoroughly before installing the tiles or other finishes.
Common Mistakes to Avoid
Stay out of these backer board installation time sinks with these tips to get a quality build.
Eliminate the Mortaring Step: Mortar causes shifting and contributes to instability. Never skip this step.
Wrong Screw Position:If not screwed on wise position, tile will crack.
Using regular drywall tape: Use always fiberglass mesh tape meant for backer boards. This provides durability in moist atmosphere.
Failure to leave expansion gaps:. Without slight spaces between backer boards, movement will crack it.
How to Care for Backer Board
All underlayments are constructed to last forever but a small amount of maintenance will greatly promote longevity:
Avoid Water Damage: Ensure edges are sealed properly and inspect for grout or caulk cracks frequently to avoid water penetration.
Routine Inspections: Inspect for chipped or broken tiles that may be a sign that something is wrong with the backer board.
Clean regularly: Clean tile surfaces installed over backer boards to avoid buildup of soap scum or mold, which can weaken its integrity.
Reinforce the Four Corners of Your Work
By providing a solid surface to install tile, you’re virtually ensuring and outdoor / indoor tile project you create will last a lifetime. When you understand what type is best for your situation and follow best installation practices, you’ll avoid common errors and be able to achieve a professional look that will last.
If you’re working to upgrade a bathroom, re-tile a kitchen or start from scratch, a high-quality backer board always serves as an ideal foundation to your work. If you need more assistance for your next project, check out our expert guides or contact our support team for help!
