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From your siding to your decking, every exterior material plays a role in helping to protect what matters most. Hardie® Fiber Cement Siding and TimberTech® Advanced PVC Decking combine exceptional beauty with top-rated fire-resistant performance, helping homeowners create a more resilient outdoor living experience without compromising on style. 

A Smarter Approach to Exterior Building Materials 

Beautiful. Durable. Noncombustible. 

Homeowners choose Hardie® Fiber Cement Siding because it offers: 

  • Verified noncombustible per ASTM E136 
  • Class A Fire Rating per ASTM E84 with a flame spread of 0 
  • Exterior protection that won’t contribute fuel to a fire  
  • Available fire-rated wall assembly designs for enhanced protection  
  • Proven durability and long-lasting performance 

*Hardie® fiber cement products are noncombustible and/or have a Class A Fire Rating per ASTM E84 when tested in accordance with ASTM E84.

Enjoy Outdoor Living Without Compromise 

TimberTech Vintage® and Landmark® Collections feature: 

  • Ignition Resistant designation 
  • Class A Flame Spread Rating—we have more options with this rating than other brands 
  • WUI-compliant options for wildfire-prone regions 
  • Advanced PVC construction engineered for long-term durability 

Better Together 

Pairing fire-resistant siding and decking creates a more cohesive and resilient exterior solution. 

Together, these products help homeowners create a beautiful outdoor environment with fire-resistant performance. 

What Does “Class A” Mean? 

Class A is the highest rating available. Materials that achieve this classification are designed to slow fire spread compared to lower-rated alternatives. Hardie® siding achieves a Class A Fire Rating, while TimberTech® Vintage® and Landmark® decking collections have earned a Class A Flame Spread Rating.