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Wholesale Fire Retardant Lumber & Plywood Suppliers

Fire Retardant Lumber

Pyro-Guard is pressure-impregnated, third-generation, interior fire-retardant treated lumber and plywood for enclosed structural applications.

Uses of Pyro-Gaurd Fire-Retardant Lumber and Plywood

Pyro-Guard is recommended for enclosed structural applications such as:

Pyro-Guard has been strength-tested after prolonged exposure to elevated temperatures and moisture to verify its strength characteristics when used in roof systems and other recommended applications.

Pyro-Guard is the only major fire-retardant formulation produced by an American-owned company.

Pyro-Guard fire-retardant treated wood is produced in company-owned pressure treating plants that ship to the U.S. east of the Rockies. For the western U.S., Pyro-Guard is produced by licensee treating plants.

Advantages of Using Pyro-Gaurd Fire-Retardant Lumber and Plywood

Strength of Pyro-Gaurd Fire-Retardant Lumber and Plywood

Pyro-Guard was the first interior fire-retardant treatment with plywood roof span ratings and lumber strength adjustments based on high temperature testing. Plywood was strength-tested after exposure to 170 degrees F, and lumber was strength-tested after exposure to 150 degrees F according to ASTM 5516 and ASTM 5664. As a result, Pyro-Guard can be used with confidence in all recommended structural applications, including plywood roof sheathing and roof trusses.

Fire Performance of Pyro-Guard

Pyro-Guard is pressure impregnated deep into the wood to provide permanent protection, unlike coatings, which only provide superficial protection.

When Pyro-Guard treated wood is exposed to fire, non-combustible gas and water vapor are produced, and a layer of protective char forms, which hinders combustion and insulates the wood against further damage. Pyro-Guard interior fire-retardant treated wood has a low rate of fuel contribution and heat release, and it maintains structural integrity longer than other building materials such as steel. Consequently, fire damages and repair costs are minimized, resulting in reduced insurance rates.

Smoke Toxicity

Pyro-Guard has successfully passed a stringent combustion toxicity test. Smoke produced by Pyro-Guard treated wood was no more toxic than smoke produced by untreated wood.

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