Waterproof backerboard prevents wall, floor moisture penetration

Introduced by James Hardie, HardieBacker 500 is said to be the first and only waterproof cement board.

The product passes ANSI 118.10 for waterproofness and protects tile installation and wall cavities from moisture penetration, eliminating the need for added coating.

The product is made from 90 percent Portland cement and sand with no loose aggregate or filler. The board is said to have a high flexural strength with up to 3x the compressive strength of competitive cement boards.

Benefits include being easy to cut to any size via score and snap, as well as producing less dust and debris than other products when cut. Its unique cement formulation and MoldBlock technology is said to provide mold and moisture resistance, while tile adhesion helps to protect tile work.

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