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The New Hardie® Backer Board
with HydroDefense™ Technology

100% Waterproof Cement Backer Board*

Hardie® Backer Board with HydroDefense™ Technology
provides the unmatched strength, ease of use, and excellent tile
adhesion you’ve come to expect from Hardie® Backer Board—now with a
waterproof composition throughout the board.

That’s how the most preferred brand of backer board** got even better.
Hardie® Backer Board with HydroDefense™ Technology delivers
exceptional performance and rock solid protection for your customers,
your work, and your reputation.

*Passes ANSI A118.10 waterproofness
Waterproof Composition
MoldBlock® Technology to protect the board
Easy Score & Snap
Cuts Quick & Clean
Unmatched Compressive & Flexural Strength
Excellent Tile Adhesion
Waterproof Composition
MoldBlock® Technology to protect the board
Easy Score & Snap
Cuts Quick & Clean
Unmatched Compressive & Flexural Strength
Excellent Tile Adhesion
Innovative
Composition
Innovative Composition
Hardie® Backer Board with HydroDefense™ Technology helps protect tile installations and wall cavities from moisture penetration.

 
  • 90% Portland cement and sand, plus proprietary ingredients
  • No fillers or abrasive aggregates
  • Glass-fiber free
  • Waterproof composition throughout the board
Quicker
Installation
Quicker Installation
Hardie® Backer Board with HydroDefense™ Technology enables quicker installs to help you complete more jobs with confidence and without compromise to quality.
 
  • Permits time savings by allowing you to skip the step of applying waterproof coating across the entire board surface area
  • Just waterproof the joints and fasteners† and then move on to the next project
  • Exceptional Workability
    • Cuts easily with a hand tool (e.g., scoring knife, shears, utility knife)
    • Cuts quick and clean, with easy score & snap
    • Cuts cleanly, with minimal dust and debris
The Leader In
Performance
The Leader In Performance
Hardie® Backer Board with HydroDefense™ Technology is where exceptional performance meets waterproof protection.

 
  • ASTM E136 non-combustible
  • Unmatched compressive and flexural strength
  • Excellent tile adhesion
  • ASTM C1288 compliant
  • ANSI A118.9 compliant
  • Passes ANSI A118.10 waterproofness

Tested & Proven Waterproofness

Passes ANSI A118.10 Waterproofness
No water penetration through Hardie® Backer Board with HydroDefense™ Technology during 48-hour hydrostatic test.
 
 
00 hour testing period
Graphic Representation of
ANSI A118.10 Waterproofness Test
 
SPECIFICATIONS & WARRANTY
 
HardieBacker® Cement Board with HydroDefense™ Technology is a long-lasting, waterproof solution for walls, floors, and countertops.
THICKNESS:
0.42"
LENGTH:
36"x60" boards
WEIGHT:
2.6 lb/sq. ft.
WARRANTY:
Lifetime limited, transferable warranty (covers materials and labor)
View Warranty Information

English Installation Guide    Spanish Installation Guide
PRODUCT INFO
Cut time. Not quality.
Discover the new Hardie® Backer Board with HydroDefense™ Technology.
Download Product Brochure
Cut time. Not quality. <br />Discover the new Hardie<sup class='registered'>®</sup> Backer Board with HydroDefense<sup class='registered'>™</sup> Technology.
*Passes ANSI A118.10 waterproofness.

**According to the 2019 Tile and Stone Installation Contractor Market Study conducted by Clear Seas Research in partnership with the NTCA and TILE Magazine.
†Some application areas, such as shower pans, may require additional waterproofing. Refer to local building code requirements.