Coosa Fire Rated Panels

flame spread

top fire safety without compromising style

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The high-density, fiberglass-reinforced polyurethane foam material in a Coosa's Fire-Rated Composite panel has a higher resistance to flame spread than traditional plywood - making for a great marine board! Our fire-rated composite boards undergo rigorous testing and certification processes to ensure they meet or exceed industry standards for fire resistance. With certifications from leading authorities, you can trust that our products have been thoroughly evaluated and approved for their exceptional fire-resistant properties.
Don't compromise on style for safety. Our composite boards are available in a wide range of finishes, colors, and textures, allowing you to achieve the aesthetic you desire while maintaining the highest level of fire protection. From modern, sleek designs to rustic natural looks, we have options to suit any project.

Explore the Advantages of Fire Rated Panels

There are certain applications requiring specific precautionary measures to ensure safety standards and regulations are met – especially when it comes to fire safety. While our standard composite panels meet the FMVSS 302 fire standard for motor vehicles, Coosa doesn’t stop there. We took fire safety to the next level with the development of composite panels meeting the more rigorous ASTM E84 regulation, which requires a much higher standard for flame spread and smoke generation.

Coosa’s on-demand fire-rated panels meeting this standard are a truly unique offering to markets needing this extra level of protection against flame spread. If you are looking for a high-density, fiberglass-reinforced polyurethane foam panel meeting ASTM E84 standards, then our Fire-rated panel is what you need.

ASTM E84, Class (A) Approved

Available in our Bluewater or Nautical series of panels

fire-rated composite boards

Increased Safety When It Is Needed Most

  • Tested and approved to ASTM E-84, Class A as to flame spread and smoke generation

  • Certified and available for custom order in our Bluewater and Nautical series

  • Provides a higher level of comfort when fire protection or safety is needed


Panel Test Test Date Flame Spread Index Coosa Test Results
Flame Spread
Smoke Developed
Coosa Test Results
Smoke Developed
Bluewater ASTM E84 – 23 September 23, 2024 ≤25 10 ≤450 300
Nautical ASTM E84 – 23 September 23, 2024 ≤25 5 ≤450 250

The high-density, fiberglass-reinforced polyurethane foam materials in a Coosa Composite panel have a higher resistance to flame spread than traditional plywood. A traditional plywood subfloor will spread flames considerably further than our Coosa ASTM E-84-approved panels in the same amount of time.

*Numbers based on revised test results (#TT-010C 7/20) from APA versus Coosa test results.

Advantages of Using Fire Rated Panels

Renowned for their exceptional commitment to safety and innovation, our Fire Rated panels stand out in the industry for their unparalleled strength and a multitude of benefits:

Best Core Materials

Our core materials excel in quality and performance. Engineered to optimize strength, durability, and versatility, they represent the pinnacle of composite technology.

Lightweight & Strong

Our Fire Rated panels: Lighter. Stronger. ASTM E84 Class A compliant. High-density, fiberglass-reinforced polyurethane foam. Unmatched strength in a lightweight build.

Best In Fire Safety

Our commitment to fire safety sets industry benchmarks. Our products exceed standards, ensuring top-tier protection without compromising on quality or innovation.

Multiple Applications

Engineered for versatility, our products cater to diverse applications. From marine to construction, our solutions deliver consistent performance across various industries.

Features of Coosa’s Fire-Rated Panels

Our Fire Rated Composite Panels, certified by ASTM E-84, outperform traditional plywood subfloors in containing flame spread. Designed with varying densities, these panels offer superior fire resistance, ensuring enhanced safety and durability tailored to your specific project needs.

composite panel

The Fire Rated Bluewater 26 sets a new benchmark in fire-resistant structural panels. Balancing remarkable strength with outstanding fire safety attributes, this panel with its woven roving and continuous fiberglass strands offers superior stiffness and exceptional fire containment. Weighing over 30% less than conventional plywood, it stands as a testament to durability and safety, ensuring optimal performance in fire-sensitive environments.

Introducing the Fire Rated Bluewater 20, a lightweight yet exceptionally strong panel engineered to meet stringent fire safety standards. With a density of 20 pounds per cubic foot, this panel is over 45% lighter than plywood alternatives while delivering commendable fire resistance. Ideal for applications demanding both strength and fire safety, the Fire Rated Bluewater 20 ensures reliability without compromising on quality.

The Fire Rated Nautical 24 embodies exceptional fire resistance combined with high strength, presenting a superior semi-structural or stiffening component. With a density of 24 pounds per cubic foot and being 35% or more lighter than plywood, this panel meets stringent fire safety standards while offering the necessary robustness for applications requiring elevated structural integrity without compromising on safety.

The Fire Rated Nautical 20 has exceptional fire resistance combined with high strength and low weight. With a density of 20 pounds per cubic foot and being 40% or more lighter than plywood, this panel offers lightweight strength without compromising on safety.

Engineered for utmost fire safety without compromising on weight, the Fire Rated Nautical 15 stands as Coosa's highly economical yet super lightweight glass-reinforced panel. With a density of 15 pounds per cubic foot, it significantly surpasses traditional plywood, providing a lightweight, fire-resistant solution ideal for low-stress semi-structural components or as a core in demanding fire-sensitive applications.

Applications of Bluewater Composite Panels


  • Sub-flooring

  • Walls

  • Slide-outs

  • Cabinetry

  • Portable restroom components


  • Walls

  • Flooring

  • Doors

  • Cabinetry

  • Exterior Cladding

  • Architectural design elements

  • Decorative elements


  • Engine Compartments

  • Hatch Lids

  • Bulkheads

  • Deck furniture

  • Cabinetry

  • Cabin walls

Recreational Vehicles

  • Sub-flooring

  • Cabinetry

  • Drop-down elements

  • Ramps

  • Slide-outs

  • Freshwater tank containment structures


On a volume basis only, custom-cut parts and kits are available for qualified OEM orders.