Hardie® Backer Board with HydroDefense® Technology
The unmatched strength, ease of use, and excellent tile adhesion you’ve come to expect from Hardie® Backer Board—with a 100% waterproof* composition throughout the board thanks to HydroDefense® Technology.
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Explore Hardie® Backer Board with HydroDefense® Technology
An unmatched combination of strength, performance and protection, our cement backer board is the most preferred brand by tile installers** and is 100% waterproof*.

Explore Hardie® Backer Board with HydroDefense® Technology
An unmatched combination of strength, performance and protection, our cement backer board is the most preferred brand by tile installers** and is 100% waterproof*.
Why choose Hardie® Backer Board with HydroDefense® Technology?
Count on exceptional performance and rock-solid waterproof* protection for your customers, your work, and your reputation.
100% Waterproof*
Helps protect tile installations from the damaging effects of water thanks to 100% waterproof* composition throughout the cement board.
Superior strength
Hardie® Backer Board is made of fiber cement, a material stronger than foam. Resists splitting, cracking, or shifting so your tile job holds up under weight and over time.
Excellent tile adhesion
A tight hold on tile requires excellent grip. Hardie® Backer Board is engineered to perform as a rock-solid base that helps prevent tile from popping, loosening, or shifting over time.
Hardie® Backer Board with HydroDefense® Technology Tech Specs and Documents
Learn everything you need to know about installing Hardie® Backer Board with HydroDefense® Technology.
Installation Instructions
View instructions for installing Hardie® Backer Board with HydroDefense® Technology. In English and Spanish.
How to Install Hardie® Backer Board with HydroDefense® Technology
Learn how to install Hardie® Backer Board with HydroDefense® Technology waterproof* cement board and the appropriate materials and tools that you’ll need for the job.
Browse tech docs library
Quickly browse the installation guidance and technical documentation you'll need for a successful install project.
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