Build to battle the elements

HardieWindbreaker™ sheathing board is a non combustible, next generation weather defence air barrier by James Hardie.

With superior fire resistance, water-tightness and breathability, HardieWindbreaker sheathing helps new builds stand the test of time.

HardieWindbreaker board can be applied to the outer studs, joists, and rafters of a building to strengthen the structure and serve as a base for an exterior weatherproof ventilated rainscreen cladding system. It can used as part of either steel or timber frame structure.

With its inherent properties of fire, rot, moisture and water resistance, fibre cement is the perfect material to render a structure weather-tight, enabling internal trades to begin work in a dry, comfortable environment. Our easy to install boards speed up the installation process, meaning buildings can be  occupancy-ready in a surprisingly short schedule.


Fire resistant

Non-combustible A2 fire rated, offers up to 60 minutes protection.

Moisture resistant

Built in water repellent barrier, no membrane needed.

Wind resistant

Withstands high wind pressures up to 5800 UFL* (equivalent to 350 miles per hour wind speed, stronger than a tornado!)

*Ultimate Failure Load: mechanical fixing to SFS frames

New building regulations means we need boards that have been tested for fire resistance in through-wall scenarios plus are A2-s1,d0. Hardie have met the requirements for both and this is why we both use and recommend this board.


Adrian Buckmaster, Tetra Clad