SKU: 74667981413

James Hardie HardieBacker with HydroDefense Technology Waterproof Fiber Cement Backer Board, 0.42-in x 36-in x 60-in

Sale price$20.23 Regular price$22.48
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Description

James Hardie HardieBacker with HydroDefense Technology Waterproof Fiber Cement Backer Board, 0.42-in x 36-in x 60-inHardieBacker HydroDefense Waterproof Fiber Cement Backer Board (3 ft x 5 ft x 0. 42 in) A 100% waterproof fiber cement backer board engineered for tile installations in wet areas. The HydroDefense composition provides strong tile adhesion, mold protection, and time saving installation by only requiring waterproofing at joints and fasteners. Key Features: Waterproof Composition: Fully waterproof through the board for reliable protection in showers and

HardieBacker HydroDefense Waterproof Fiber Cement Backer Board (3-ft x 5-ft x 0.42-in)

A 100% waterproof fiber cement backer board engineered for tile installations in wet areas. The HydroDefense composition provides strong tile adhesion, mold protection, and time-saving installation by only requiring waterproofing at joints and fasteners.


Key Features:

  • Waterproof Composition: Fully waterproof through the board for reliable protection in showers and kitchens
  • Strong, Stable Base: Fiber cement construction delivers unmatched strength and excellent tile adhesion
  • Mold Protection: Formulated with MoldBlock Technology to resist mold and mildew growth
  • Easy to Work With: Cuts clean with minimal dust; score-and-snap capable
  • Time-Saving Install: Only waterproof the joints and fasteners—no full-surface coating required

Specifications Table:

Specification Details
Series Name HardieBacker with HydroDefense Technology
Actual Length (Inches) 60
Actual Width (Inches) 36
Actual Thickness (Inches) 0.42
Common Measurement (W x L) 3-ft x 5-ft
Common Thickness in Inches 1/2-in
Material Fiber cement
Waterproof Yes
Water Resistant No
Number of Sheets 1
Sold As Sheet
Coverage Area (sq ft) 15
For Use with Bathroom Floors Yes
For Use with Bathroom Walls Yes
For Use with Fireplace Exteriors No
For Use with Garage Floors No
For Use with Garage Walls Yes
For Use with Kitchen Backsplashes Yes
For Use with Kitchen Counters Yes
For Use with Patios No
For Use with Pools No
For Use with Shower Floors No
For Use with Shower Walls Yes
For Use with Vinyl Floors Yes
ANSI A118.9 Compliant Yes
ASTM C1288 Compliant Yes
Warranty Limited lifetime
CA Residents: Prop 65 Warning(s) Yes
UNSPSC 30161500

Frequently Asked Questions (FAQ):

Q: Is this board truly waterproof?
A: Yes. It is 100% waterproof throughout the board and passes ANSI A118.10 waterproofness.


Q: Where can I use it?
A: Ideal for shower walls, bathroom walls, backsplashes, countertops, and other interior wet areas; not for shower pans or pools.


Q: Do I need to apply a waterproof membrane over the entire surface?
A: No. Waterproof the joints and fasteners only; follow local codes for special areas like shower pans.


Q: How do I cut and install it?
A: Use score-and-snap or power tools; fasten per manufacturer instructions and seal joints with mesh tape and thinset.


Q: What is the board size and thickness?
A: Actual size is 36 in x 60 in with 0.42 in thickness; common size 3-ft x 5-ft, 1/2-in.


A Luxe, Watertight Canvas for Tile

This backer board becomes the quiet hero behind exquisite tile, offering a seamless, waterproof foundation that elevates every surface. Its uniform, fiber-cement core gives tiles crisp definition and enduring stability. Try it behind hand-crafted subway or geometric mosaics to let the pattern sing while ensuring lasting performance. It’s an essential layer for sophisticated spaces that demand beauty and resilience.


Choose HardieBacker HydroDefense to streamline your waterproofing and build a tile-ready surface that lasts.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74667981413

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Quick and easy process. Coffee maker died and I had the insurance. Refunded and only ended up paying the price of insurance. Would do it again!
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Claim was easy, speedy, and Amazon gift card was applied almost immediately.
I had to make a claim for a Ninja blender that was emitting an odor of burning or melting wires. I called a service representative thinking I might encounter a problem and was surprised. The agent was helpful and made the entire process so easy I applaud her! The Amazon gift card was posted to my account almost immediately after UPS picked the product up. I have decided that for products with a large number of parts and electronics that can fail I will purchase Asurion protection.
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Sharon A. Hall
Lake Worth, US
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Asurion "Assures" nothing!
Asurion has terrible Customer Support. All machine based. They give you no phone # for human interaction. Their online Support process is very close-ended. It is a checklist designed to frustrate purchasers whose issue lies outside only the very issue. My issue: I bought "Cuisinart TOB-40FR Custom Classic Toaster Oven Broiler, Silver (Renewed)" on May 26, 2024. It stated it had a 90 day warranty. So I bought an Asurion Protection Plan also to cover it for 3 years. The toaster started flaking off metal finish inside the oven over the cooking area. I tried to file a claim with Asurion and they told me the Manufacturers warranty was still in effect and I should contact Cuisinart. This despite the oven was sold with a Amazon Renewed verbiage stating a 90 day warranty. And they have nothing on their "Machine Checklist" to cover this eventuality. And I would assume I am not the only one who takes the "Renewed" route and backs it up with a "Protection Plan". They will frustrate you no end. I suspect, like many insurances, they seek to deny, deny, deny, in hopes the purchaser will give up.
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Reviewed in the United States on January 4, 2026

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