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Demystifying fire-retardant treated wood specifications

Construction Specifier

Photos courtesy Hoover Treated Wood Products Inc. is experiencing a “wood revival” contributing to the complexity of fire-retardant-treated wood (FRTW) specifications. Impregnating wood materials with fire retardants changes the chemical, physical, and mechanical properties of the wood, resulting in a complex new material.

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DCA3: Designing fire-rated I-joist assemblies

Construction Specifier

For years, Design for Code Acceptance #3 (DCA3), a document published and maintained by the American Wood Council (AWC), has been the go-to resource for architects working with I-joist assemblies. DCA3 made working with I-joists easier by providing a robust set of generic assemblies broadly compatible with most I-joists on the market.

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