Articles tagged “iic”
7 articles covering iic in acoustic engineering and building design.
Residential Acoustic Design: Part E, NCC & NBR Compliance Guide
Comprehensive guide to residential acoustic design compliance across three major building codes: UK Approved Document E, Australian NCC, and Brazilian NBR 15575. Covers STC, IIC, Rw, Ln,w targets, party wall and floor assemblies, flanking paths, and field testing requirements.
How Does Carpet Affect Room Acoustics?
Carpet absorbs high-frequency sound and reduces impact noise in rooms. Learn how pile height, density, and underlay affect acoustic performance, NRC ratings, and when carpet helps or hinders design.
What is Impact Sound? Footsteps, Drops, and Floor Noise Explained
Impact sound is noise generated by physical impacts on building surfaces, especially floors. Learn IIC, Ln,w, tapping machines, floating floors, and how to meet building code requirements.
IBC Acoustic Requirements — STC & IIC Minimums for US Buildings | AcousPlan
IBC 2021 Section 1207 acoustic requirements: STC 50 between dwelling units, IIC 50 for impact noise, state amendments, hotel and mixed-use requirements, compliance failures.
What Is Impact Insulation Class (IIC)? — Floor Noise Rating Explained
IIC rates how well a floor-ceiling assembly reduces footstep and impact noise. Learn what the number means, how it is tested, and why IIC often matters more than STC in multi-storey buildings.
ASTM E492 Impact Insulation Class (IIC): Test Method, Rating Procedure, and Compliance
ASTM E492 defines the laboratory test method for Impact Insulation Class (IIC) of floor-ceiling assemblies. This guide covers the tapping machine procedure, IIC rating calculation, field vs. lab gaps, and code requirements.
LEED AP: Acoustic Performance Credit Study Guide — EQ Credit Requirements Explained
Complete study guide for LEED v4.1 EQ acoustic performance credit covering NC curve requirements, STC/IIC thresholds, HVAC noise criteria, documentation evidence, and key differences from WELL. Includes practice questions with explained answers.