DCA3: Designing fire-rated I-joist assemblies
Construction Specifier
JUNE 30, 2021
Some of the largest I-joist manufacturers have brought products to market that do not comply with DCA3, backed instead by privately commissioned fire test reports based on proprietary assemblies. Achieving this level of performance with cavity insulation generally entails insulating the entire depth of 302 mm (11.875 in.)
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