FAQ
Condo Sound Ratings: IIC, STC, and Why Your Neighbor Cares About Your Floor
September 5, 2026
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IIC is impact sound - chairs, heels, kids. STC is airborne sound - voices, TV. Associations usually care more about IIC when you swap carpet for LVP.
The pad and the plank both count
A quiet underlayment under the wrong floor still fails a test. We spec the assembly, not just a product name from a magazine.
Carpet was doing you a favor
If you are taking up carpet in a second-floor Kihei unit, budget for acoustic underlayment. It is cheaper than ripping a new floor out because the board failed the inspection.
Mahalo for reading. With pride, service, and aloha from our Maui crew - serving the island since 1973.
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