UL Class A is the highest fire resistance rating that you’ll see in building products. It indicates the fire spread index. Look for Class A products for the highest level of fire protection.
- Class A or I: Flame spread Index of 0 – 25
- Class B or II: Flame spread Index 26 – 75
- Class C or III: Flame spread Index 76 – 200
Fiber Cement Siding
Fiber cement siding is naturally fire resistant due to its makeup. It’s a non-combustable composite made of primarily cement and wood pulp. It will not ignite when exposed to a flame and it won’t fuel a fire. Fiber Cement siding such as James Hardie® are often recommended in high fire risk areas. It can help protect your home from brush fires and other exterior flame sources. Fiber cement siding can also offer home insurance discounts for it’s fire safety rating. Be sure to pair fiber cement siding with fiber cement trim and a fire resistant backing for the best protection.
Watch this siding fire test video featuring James Hardie fiber cement:
Stone siding and masonry are also very fire resistant. The most important thing to check is the type of mortar being used. Be sure if mortar is require for installation that it is fire-rated. Some stone siding is motarless, like Versetta Stone®. It’s installed with mechanical fasteners instead of mortar. Versetta Stone siding is Class A fire resistant. Learn more about stone siding options.
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Metal roofing is an excellent option for fire resistance. Metal roofing is naturally flame resistant. With all roofing you’ll want to make sure the underlayment is also fire resistant for the best protection. Decra® offers attractive Class A fire rated metal roofing options.
DECRA Roofing is class A fire rated. Your insurance may offer discounts for the protection.
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Fire Resistance is a Smart Investment
Fire resistant building materials are an excellent investment in your home’s safety and longevity. Homeowners often get rewarded further with home insurance discounts.
Always practice fire safety!
Improving your home with Opal Enterprises
Opal is an exterior home improvement specialist in Naperville, serving the west and southwest suburbs of Chicagoland. Opal takes great care in product selection and partners with homeowners to acheive the best renovation results possible. They carry a wide variety of fire resistant building products such as James Hardie siding, GAF Roofing, and Decra Roofing. Learn about partnering with Opal for home remodeling…
- jameshardie.com Fire Protection FAQ
- bobvila.com Fiber Cement Siding
- thisoldhouse.com Fire Resistant Roofing & Siding
- boralamerica.com Versetta Stone Product Specs
- buildings.com The ABCs of fire ratings
- gaf.com Timberline HD
- decra.com Discover the Decra Difference
- ul.com Fire Resistance & Smoke Protection
Are you ready to transform your home? Schedule your free virtual consultation