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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B Helton
Chelsea, US
★★★★★ 1
PLEASE REVIEW — FORMULA CHANGED!!!
I wish I would’ve posted a review PRIOR to the formula changing but just know that I LOVED this serum. I’ve struggled with hormonal acne (PCOS) and eczema for as long as I can remember. Finally, last summer my dermatologist put me on (3) different RX including Spironolactone and Accutane. I was so tired so I stopped everything except for CeraVe cleanser, retinol (Tretinoin) and CeraVe healing ointment. My made up skin routine was working until I used too much Tretinoin and burned my face. I had read great reviews about this product so I thought, I might as well try it — and IT WORKED! I’ve been using this product for almost a year and I loved it. However, 3 weeks ago when I ordered it, I noticed the bottle had a green tint. I could tell after one use that the feel of the serum was different, more watery, not as thick as it used to be. The smell was also different. Still, I kept using it for nearly 2 weeks and I experienced 2 breakouts! Sure enough, I stopped the product and within a few days, my skin was back to normal. I am very upset because as someone who has extremely sensitive skin, this worked but unfortunately, the new formula isn’t for me.
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Reviewed in the United States on May 14, 2026
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sandraday
Natrona Heights, US
★★★★★ 5
Not greasy and no fragrance
Style: Updated Formula
Excellent moisturizer for my sensitive skin.
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Reviewed in the United States on May 26, 2026
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Alice Cooper
Dallas, US
★★★★★ 5
Great lotion for very dry skin
Style: Updated Formula
I had a laser done on my face and the products they gave me weren't working. This came highly recommended so I gave it a try. I'm very glad I did! It moisturized my face really well without appearing greasy. I used the rest when my face got dry from winter (in th midwest). Felt very rich and smooth. Medium thickness.
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Kcm228
Carnegie, US
★★★★★ 5
Helps repair skin barrier
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This stuff is amazing! It has drastically helped repair my skin barrier. I had a flare up of dermatitis right before an important event and this helped clear it!
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KBL
Birmingham, US
★★★★★ 5
Great Product
Style: Updated Formula
I will purchase this again. very gentle on the skin and moisturizes.
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Reviewed in the United States on February 14, 2026

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