What is STC? | Soundproofing with Dave

2.25.2009

What is STC?

Almost all soundproofing products have a STC rating.

The Sound Transmission Class (STC) is a single-number rating of a material's or an assembly's ability to resist airborne sound transfer at the frequencies 125-4000 Hz. In general, a higher STC rating blocks more noise from transmitting through a partition. Exciting stuff hugh!

This video explains what STC or Sound Transmission Class is and how it is measured.


Soundproofing Walls - What is STC? - Funny video clips are a click away

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