Weather Barrier

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James Hardie's mission is to innovate A Better Way to Build™. We pioneered a superior siding — the first layer of defense against the weather elements. Now, HardieWrap® weather barrier gives you a second layer of defense. Together, the siding and HardieWrap weather barrier work to form a major part of your building's weather protection envelope.

HardieWrap weather barrier is a higher performance, water-resistive barrier designed to provide better protection for your building. When properly installed under James Hardie® fiber-cement siding, it gives your home an unmatched double line of defense against water damage, mildew and energy loss.

HardieWrap weather barrier offers you more — and it's backed by James Hardie, a name you can trust.

HardieWrap® weather barrier

  • Unique MicroTech™ Coating provides a balance for your building:
    - Provides water resistance to prevent costly damage
    - Allows your building to breathe, preventing the conditions for unhealthy mildew
  • Superior air resistance helps reduce energy loss and save you money
  • Thicker sheet provides greater tear resistance

Learn more about HardieWrap weather barrier




HardieWrap® Flashing

  • Made of high performance butyl rubber for broad temperature applications
  • Superior adhesion and durability
  • Contains no asphalts, VOCs (volatile organic compounds) or solvents, which can leave flashing less flexible and reduce adhesion over time

Learn more about HardieWrap Flashing




HardieWrap® Flex Flashing

  • Made of butyl rubber adhesive to withstand greater temperature extremes
  • Stretches to conform to most doors, windows and other custom shapes
  • Self adhesion and sealing around staples and other fasteners
  • Contains no asphalts, VOCs (volatile organic compounds) or solvents, which can leave flashing less flexible and reduce adhesion over time

Learn more about HardieWrap Flex Flashing




HardieWrap® Seam Tape

  • Seals vertical and horizontal seams in the housewrap
  • Maintains adhesion, even at low temperatures
  • Contains no asphalts, VOCs (volatile organic compounds) or solvents, which can leave flashing less flexible and reduce adhesion over time

Learn more about HardieWrap Seam Tape