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. Some of the industry’s major players have entry level product lines with flanges as slim as 28.5 mm (1.125 in.) mm (1.312 in.),
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