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HardieBacker with HydroDefense Technology 3 ft. x 5 ft. x 0.42 in. Waterproof Cement Backer Board

  • 100% Waterproof Cement Board with HydroDefense Technology
  • Tile backer board for countertop, shower and floor installations
  • Call 866-496-1283 for design, contractor or product information
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Product Details

Hardie Backer Cement Board with HydroDefense Technology is a waterproof cement backerboard designed for use on walls, floors and countertops. Use on walls in moisture prone areas, as a tile backerboard and as an underlayment for all tile, vinyl and wood flooring applications. Formulated with MoldBlock Technology to protect the board against damage from mold. Works great in wet areas such as bathrooms, kitchens and laundry rooms. Provides strength, ease of use and excellent tile adhesion creating a solid base for projects. Waterproof composition throughout entire board saves cost by eliminating the need to apply a separate waterproof coating across the surface of the board.
  • James Hardie Buying Guide
  • Protect projects with confidence, waterproof cement board provides the ultimate barrier to moisture on walls and flooring
  • Contains no fillers or abrasive aggregate, made with 90% Portland cement and sand for strength creating a strong foundation for projects
  • Fully waterproof composition throughout the board saves time by eliminating the need to waterproof entire surface
  • Skip the step of waterproofing entire board - just waterproof joints and fasteners
  • Score and snap - easy, quick and clean cut indoors using a scoring knife or a utility knife
  • Strong enough for use in commercial or residential applications
  • 3 ft. x 5 ft. board is 0.42 in. deep and works on floor, wall, countertop or backsplash applications
  • https://www.homedepot.com/collection/Building-Materials/HardieBacker-Cement-Backerboard-Collection/Family-316330049
  • Shop the HardieBacker Cement Backerboard Collection
  • Additional waterproofing may be required, consult local building codes before beginning


  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

139Questions
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Q:Can this be put over drywall in a shower enclosure, or must the drywall be removed first?
by|Feb 6, 2023
1 Answer
Answer This Question

A:  Technically it could go either way. Check your local building codes.

by|Feb 6, 2023
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    Q:The installation instructions indicate that a 1/8 inch gap is recommended for a floor installation but are silent as to whether a gap is needed between boards for a wall installation. Is a gap needed or recommended for a wall installation? Thanks.
    by|Jan 30, 2023
    1 Answer
    Answer This Question

    A:  A gap is not required on wall applications. It is only required for floor applications.

    by|Feb 1, 2023
      1 found this answer helpful
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      Q:Can I use the Hydrodefense like drywall for interior walls that are subject to salt water flooding occasionally (a couple of hours). Doesn't have to be completely waterproof, just not deteriorate like the current drywall.
      by|Jan 26, 2023
      1 Answer
      Answer This Question

      A:  It is not an application that the product was designed tested and approved for. It might work if it gets a chance to dry out and it doesn't happen too often.

      by|Jan 27, 2023
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        Q:What is the weight per sheet?
        by|Jan 22, 2023
        1 Answer
        Answer This Question

        A:  It weighs 2.6 pounds per square foot..

        by|Jan 23, 2023
          Showing 1-4 of 139
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          Customer Reviews

          4.6 out of 5
          (186)
          • 4.6
            out of 186 reviews
          • 71%recommend this product
          Filter by:
          Showing 1-10 of 186 reviews
          Hardie Backer
          Excellent to work with, no mess
          by
          • Verified Purchase
          • Recommended
          Easy to work with.
          Easy to work with.
          by
          • Verified Purchase
          • Recommended
          This cement board is great suoer easy to use, super easy to install, definitely worth the money!
          This cement board is great suoer easy to use, super easy to install, definitely worth the money!
          by
          • Verified Purchase
          • Recommended
          2 found this review helpful
          A must have in the shower!
          A must have in the shower!
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          • Verified Purchase
          • Recommended
          3 found this review helpful
          I keep getting emails to review purchases that I did...
          I keep getting emails to review purchases that I did not purchase. HOME DEPOT acknowledges this problem. I will keep reviewing the products I did not buy with 1 star until home Depot fixes this problem.
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          • Verified Purchase
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          • Verified Purchase
          Pam did an excellent job assisting me with my order....
          Pam did an excellent job assisting me with my order. She knew exactly what I needed and knew how to order.
          by
          • Verified Purchase
          Great board only its sells as 1/2 inch but its...
          Great board only its sells as 1/2 inch but its only 3 /8.
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          • Verified Purchase
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          Showing 1-10 of 186 reviews

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