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Performance & Durability

Siding is exposed to Mother Nature all day, every day, for years. Weather, water, time, fire and pests—all can lead to trouble. That’s why James Hardie’s hardworking products are engineered to stand up beautifully, whatever the elements.
Be Ready
for anything
Bad weather can strike at any time. So we test our products to better withstand worst-case scenarios: hurricanes, UV rays, snowstorms, and more. But it’s not only extremes that break down siding—the change of seasons does a number on materials such as vinyl (which may crack in the cold) and wood products (which expand and contract with changes in moisture and humidity). Only James Hardie products are Engineered for Climate®.
A HARDIEZONE® FOR EVERYONE
After studying the long-term effects that different climates have on siding, we created the HardieZone® system, to ensure that you get the right product for your region. HZ5® products are made to resist wet, freezing conditions. HZ10® products protect homes from heat, humidity, blistering sun and more.
What's My HardieZone?
Your region has significant seasonal temperature variations and year-round precipitation. Our HZ5 products are formulated with the highest quality raw materials and proprietary additives to reduce moisture intrusion. This helps prevent your siding from growing mold, shrinking, swelling and cracking.
The things we value most should last the longest. That's why we invented fiber cement and remain committed to continually raising the bar for the rest of the industry. For decades, James Hardie has made the most beautiful, durable fiber cement products on the market.

moisture &
rot resistance

Water can damage your home like nothing else can. It may be gradual, but it is relentless, and can cause mold, swelling, cracking, and color separation. This is where James Hardie stands out from its competitors.
OSB or wood-composite siding has a tendency to expand, buckle, crack and mold when repeatedly exposed to precipitation. Vinyl siding installations may put you at risk for water intrusion, especially around windows and trim joints.
James Hardie products are specifically engineered to withstand damage from moisture and rot, and will hold their own, come rain, sleet, or snow.

Siding Surviving the Storm

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Durable over time

One thing’s for sure: As the years go on, we all show signs of aging. But since James Hardie products are created to stand up to the demands of your specific climate, they will look great for years, saving you time and money.
This photo of wood siding shows how it can be suseptible to moisture and harsh weather conditions and tends to expand and peel over time.

More on ColorPlus® Technology
With the James Hardie's added benefit of ColorPlus® Technology—a baked-on color option that resists fading—your siding will look great without excessive maintenance.

fire protection

In case of a fire, you want to know that that walls of your house will protect you while your family seeks safety. Fire feasts on wood, and it melts vinyl almost instantly. But James Hardie siding will not ignite when exposed to a direct flame, nor will it contribute fuel to a fire.
Shown here, HardiePlank® lap siding holds up during a home fire and the home's interior is not penetrated. No wonder James Hardie siding is endorsed by firefighters nationwide.
Because James Hardie products are non-combustible, many insurance companies offer a discount. We recommend sharing fiber-cement siding's fire-resistance qualities with your insurance carrier.

Fire Test

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Unsusceptible To Pests

Mother Nature’s creatures can wreak havoc on some types of siding. Because it’s wood, OSB or wood-composite siding can be pecked by birds and devoured by insects.
Shown here, a woodpecker has done extensive damage to this wood home, allowing moisture and other pests to get in.
James Hardie fiber cement siding offers little appeal to critters and won’t be eaten by termites. So you can focus on the animals in your life that actually make you happy.

WEATHER WITHSTANDING

Severe weather will test the strength of your home. Hurricanes, hail and blizzards hit hard and fast. Extreme droughts and relentless heat can go on and on. Your choice of
siding, along with proper installation, can help your home stand up to these unpredictable elements.
As shown here, wood can peel, crack and expand in harsh weather conditions like hurricanes and tornados.
James Hardie fiber cement siding helps resist the impact of hail and windblown debris and is designed to perform in extreme heat and cold.