HardieBacker 500 Cement Board - 1/2"

HardieBacker 500 Cement Board - 1/2"

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HardieBacker 500 Cement Board - 1/2"

Product Description

HardieBacker 500 Cement Board for walls and floors provides outstanding resistance to moisture and mold. 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.
HardieBacker’s unique cement formulation helps prevent damage from moisture and provides excellent tile adhesion to help protect tile work. In addition, its MoldBlock® Technology provides outstanding resistance to mold.

Download Installation Guide


Product Specifications

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

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