Gavin defines Impact Insulation Class (IIC) and shows how it relates to sound isolation for footsteps, furniture movement, and other floor-borne vibration. He contrasts IIC with STC (airborne noise), walks through the rating scale and typical code minimums, outlines recommended IIC targets for different building types, demonstrates how IIC is tested with a tapping machine (ASTM method; result rated per ASTM E989), and details practical ways to improve IIC, like carpet + pad, floor underlayment, floating floors, and when ceiling upgrades help. He also notes slab thickness effects and why avoiding stacked noise-sensitive rooms matters.

Video By: More Than Media - https://www.morethan.media/

Instagram: https://www.instagram.com/morethan.media/

TikTok: https://www.tiktok.com/@morethan.media

YouTube: https://www.youtube.com/@morethanmedia_

The S.O.U.N.D. Project Podcast:

Apple Podcasts: https://podcasts.apple.com/us/podcast/the-sound-project/id1680525959

Spotify: https://open.spotify.com/show/6dkk1s642VFjZGsdYGyxBP

Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy9kZTBiZGNlOC9wb2RjYXN0L3Jzcw

Full episodes playlist: https://www.youtube.com/playlist?list=PLghfvh2wd7A9MnVKr44jtPEg0qcZ1esTF

Keep up with us on our Socials:

- YouTube: https://www.youtube.com/@haverstickdesigns

- Instagram: https://www.instagram.com/haverstickdesigns/

- Facebook: https://www.facebook.com/HaverstickDesigns

- TikTok: https://www.tiktok.com/@haverstickdesigns

- LinkedIn: https://www.linkedin.com/company/haverstick-designs/

- Linktree: https://linktr.ee/haverstickdesigns

- Website: https://www.haverstickdesigns.com/

#SoundDesign #Acoustics #ImpactNoise #SoundIsolation #IIC #STC #RecordingStudioDesign #TheSOUNDProject #BuildingDesign #noisecontrol

Timestamps:

00:00 – Intro

00:08 – What is IIC (Impact Insulation Class)?

01:00 – Everyday examples of impact noise

01:47 – IIC performance ratings explained (poor to excellent)

02:28 – Recommended IIC levels for different building types

04:09 – IIC vs. STC: Impact vs. airborne noise

04:57 – Testing methods: tapping machine & ASTM standards

05:44 – How to improve IIC: carpets, underlayments, floating floors

07:21 – Ceiling treatments and design considerations

08:08 – Concrete slab thickness & room stacking issues

08:42 – Summary & key takeaways

09:26 – Outro