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Are Ultralight Insulation Boards Sound Proof?

Ultralight Insulation Boards are not “sound proof,” but are an excellent product for the reduction of sound.

Soundproofing is measured in North America using Sound Transmission Class STC. The STC scale is a logarithmic measure of sound reduction throughout the frequency range of human hearing. The STC rating accounts for airborne sound measured between 125 Hz to 4000 Hz. (SONOpan, 2024).

Our Ultralight Insulation Boards have a STC of 54 on a wood substrate and 53 on concrete. See the chart below. Source: SONOpan.


Interested in installing Ultralight Insulation Boards? See our installation video below: