HardieBacker 1/2" Cement Board

HardieBacker 1/2" Cement Board

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HardieBacker 1/2" Cement Board
$13.57

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´ 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.

Non-Combustibility
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

Product Specifications

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

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