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
2.25.2009
2.20.2009
Wood and sand combined for eco friendly soundproofing.
Phonewell is a soundproofing product made from wood and sand and available in Ireland, the UK Netherlands and Germany. It is an "eco-friendly product that is breathable, pollutant free and odourless". It can be used to combat both airborne and impact noise and can be used on floors, walls and ceilings.
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