IIC and Permits - Professional Constructor Central

Tuning in on sound: Reducing noise in the workplace

Construction Specifier

SEPTEMBER 5, 2024

An acoustic consultant can help ensure compliance in meeting requirements and obtaining necessary permits or approvals from regulatory authorities. Through years of data, it has become apparent floor toppings and underlayments have a much greater effect on the high-frequency IIC performance of a floor/ceiling system.

IIC

IIC Consulting Environment Products

DCA3: Designing fire-rated I-joist assemblies

Construction Specifier

JUNE 30, 2021

The wood I-joist (WIJ) assemblies were added to DCA3 in 2001 and were intended to promote the usage of engineered lumber by simplifying the associated design, specification, and permitting processes. It is relatively common for building owners to ask for their floor assemblies to be designed to exceed these code minimums.

Design

Design IIC Documentation Residential

Professional Constructor Central

Tuning in on sound: Reducing noise in the workplace

DCA3: Designing fire-rated I-joist assemblies

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