Commissioning IIC Reference 
Construction Specifier
SEPTEMBER 5, 2024
Finally, even with all the references to the sounds of “running of mechanical systems,” design of HVAC, ductwork and venting, plumbing, and vertical transportation are always improving to operate more efficiently and quietly, thus lowering interior noise pollution.
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. As is often the case when referencing multiple proprietary standards, different manufacturers’ specific requirements can conflict with one another.
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