How Do James Hardie® Products Perform in a House Fire?

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Polar Bear

March 11, 2022

Among the many advantages of James Hardie® fiber cement products are their long life span, exceptional durability and easy maintenance. In this post, Polar Bear Exterior Solutions talks about another outstanding feature of James Hardie products — fire resistance. 

How Do James Hardie® Products Perform in a House Fire?

How Do James Hardie Products Perform in a House Fire?

Fiber cement is a combination of fine silica sand, wood fibers and cement with properties similar to brick and stone. Fiber cement is used in James Hardie siding products, which can improve the fire resistance of an exterior wall.

Fire-resistant materials are useful in slowing the spread of a fire. Heat can still pass through James Hardie products, but you can trust that the siding won’t ignite or contribute fuel to the fire. It’s important to remember that no material is completely impervious to heat, especially at the levels emitted by a house fire…but thanks to this important feature, homeowners and fire professionals have more time to respond and minimize damage to the property.


A fire-resistant product such as HardiePlank can help increase a home’s fire protection by preventing the fire from immediately igniting or becoming worse. During a house fire, it can buy time for the occupants to flee and allow firefighters to extinguish the flames. Because James Hardie products have been proven to be fire-resistant, many fire insurance providers offer discounts to homeowners who have these products installed.

James Hardie’s siding products are climate-adapted. HardiePlank lap siding also comes with a 30-year non-prorated and transferable warranty, which is one of the strongest warranties you can find.

Polar Bear Exterior Solutions offers different kinds of roofing materials and styles that you can choose from. We also provide siding services and products. Call us at (425) 290-5579 or fill out our contact form to schedule an appointment. We serve clients in the Greater Seattle area and other nearby communities.

Polar Bear

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