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Spring-Loaded Screw Turns Drywall Into Sound-Absorbing Panels

This looks promising for a 9db reduction in sound escape in homes.

Apparently the spring loaded screw acts as a dampener of sound vibrations that hit a regular dry-wall.In principle, the screw is split in the middle with a spring placed inside. The screw tip goes into the wooden joist, the head holds the plasterboard in place and in between a thin resilient mechanical coupling that prevents the sound waves from advancing is formed.

They have patents and are looking for mass production.https://www.akoustos.se/

I’d certainly consider it for renovations and new builds.
blooloo

Showing 1 response by br3098

br3098
969 posts
 
I hate to respond so far down a thread but this one is too silly to ignore.

Screws don't absorb sound energy. Screws don't impart the ability for an underlying material to absorb sound energy. All screws can do is anchor an underlying material and inhibit vibration; in this example to the wood framing supporting the drywall. Wood framing doesn't absorb sound energy (much) either but can make an effective diffuser IF you use enough wood and if you don't have drywall in the way.

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