HardieBacker 500 Cement Board - 1/2"

HardieBacker 500 Cement Board

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HardieBacker 500 Cement Board - 1/2"

Product Description

HardieBacker 500 Cement Board for walls and floors delivers superior protection against moisture damage and mold growth. It contains no paper facing, which serves as a food source for mold, or gypsum, which can disintegrate with continuous moisture exposure. HardieBacker board is an ideal choice for wet area walls; its smooth surface may be painted, textured, wallpapered, or tiled. HardieBacker 500 board is available in a 3 x 5 ft sheet size and is backed by a limited lifetime product warranty.

90% Portland cement and ground sand. HardieBacker board contains no asbestos, glass mesh, formaldehyde, or gypsum. Sheet Size:

  • 3'x 5'
  • Thickness: 0.42"
  • Weight: 2.6 lbs/sq.ft.

Mold Resistance
HardieBacker products achieve a perfect score on both industry standard mold tests. HardieBacker board scores a 0 (best possible score) on the ASTM G21 for mold resistance and a 10 (best possible score) on the ASTM D3273 test against mold growth.

Flexural Strength
Based on typical Equilibrium Moisture Content: 2100 psi when tested in accordance with ASTM test method C1185.

HardieBacker™ cement board is recognized for use in non-combustible construction in NER-405.

Surface Burning Characteristics
When tested in accordance with ASTM test method E-84:

  • Flame Spread: 0
  • Fuel Contributed: 0
  • Smoke Developed: 5

Thermal Resistance
(Approximate value) 1/4'' thick: R:0.13

90% Portland cement and sand, no loose aggregate or filler, highest flexural strength and up to 3x the compressive strength of competitive cement boards.
Installs better - Easy to cut to any size and clean cuts allow edges to align tightly and less dust and debris when cut.
Unique cement formulation and MoldBlock® technology provides outstanding mold and moisture resistance, excellent tile adhesion to help protect tile work.

Download Installation Guide

Product Specifications

SKU: har_7
Manufacturer: James Hardie
Warranty: Limited Lifetime Warranty
MPN: 220020

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