Blazeguard fire rated wood panels consist of a sheet of oriented strand board (OSB) or plywood combined with a thin coating of International Barrier's patented Pyrotite fire resistant formulation.

  • A Blazeguard wood panel is able to achieve a Class A, structural flame spread rating (as measured by ASTM E-84 extended to 30 minutes) and its burn-through resistance (as measured by ASTM E-119) is nearly triple that of untreated wood panels.
  • Blazeguard has been evaluated by code evaluation services agencies for use as structural roof sheathing, exterior fire resistant wall assemblies, interior panels, as a thermal barrier for structural insulated panels (SIPs), and as a component of floor decking.
  • Blazeguard wood panels are stronger than uncoated wood panels, and do not lose strength over time. In contrast, pressure-impregnated, chemically treated fire retardant treated ( FRT) plywood loses strength during the treatment process and thereafter.
  • Blazeguard is resistant to periodic wetting, so rainstorms on the job site do not require "redrying," as does FRT plywood.
  • Blazeguard waste (from board trimmings) is environmentally friendly and safe for any landfill that would normally accept plywood or OSB waste.
  • Blazeguard is easy to handle and install, and is impact resistant.
Blazeguard is used in building applications where either a Class A flame spread or burn through resistance rating is required by building code, or where developers/builders generally desire a high quality, environmentally friendly, non-toxic product that delivers superior fire resistance and attributes such as mold and mildew resistance, structural strength and impact resistance. Insurance rates may be reduced if the fire safety of a building is enhanced by materials like Blazeguard.

Strength, Performance and the Test of Time
In an evaluation conducted by Weyerhaueser, over 80 different fire retardant technologies were tested on different attributes, including:
  • Interaction with nails and staples to guard against corrosion
  • Rain, moisture and heat resistance
  • Smell
  • Paint compatibility
  • Fire resistance
  • Flame spread
  • Smoke developed
  • Toxicity
  • Environmental compatibility (landfill)
  • Water content
Blazeguard was then tested for aging. After 50 simulated years or more in attic conditions of 170°F with 65% relative humidity, showed no relative change in panel strength or performance. Flame-spread remained Class A in the 30-minute ASTM E-84 fire test.

Blazeguard emerged as the superior product.

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