New, spring-loaded “sound screw” dampens drywall noise
Smooth, featureless walls around your home are easy to paint and great for hanging artwork, but they’re also great at transmitting sound waves from room to room.a less desired characteristic. Addition of soundproofing is a solution, but a cheaper and easier way is to install drywall using these nifty spring-loaded sound absorbing screws instead of.
When attaching plasterboard to timber frame walls or the ceiling of a room, special screws with a deeper thread are used to ensure that the panels never come loose. But while the walls in your home may seem solid, drywall is actually quite flexible and can function like a drum head, vibrating when sound waves hit them, and then transmitting those sounds. If you have ever lived in a apartment and had no trouble hearing the arguments of your neighbors, you experienced the inconvenience of the material which mainly replaced plaster walls decades ago.
There are many solutions to prevent sounds from escaping a room. Insulation blown into the walls will help absorb sound waves, and garages typically use thicker plasterboard that absorb sound better. You can even line the walls with sound-absorbing panels with slanted elements that dissipate the energy of a sound wave – a solution often used in recording studios – but which can be both expensive and unsightly. The Sound screw, developed by HÃ¥kan Wernersson of the Department of Materials Science and Applied Mathematics at the Swedish University of MalmÃ¶, is a more streamlined solution that does not require any custom installation tools.
While a traditional drywall screw holds a drywall panel against the wooden studs that make up the structure of a room, the sound screw has a flexible spring just below the head. It still holds a piece of drywall securely against a wall, but with a very slight gap allowing the spring to expand and compress, dampening the energy of sound waves hitting the walls, making them much quieter when they are seated. echo in another room. In tests in a sound lab, the researchers say: Using the Sound Screws has been found to reduce sound transmission by up to nine decibels, making sounds bouncing in an adjoining room about half as loud for human ears.
The creator of the Sound Screw is always on the lookout for manufacturers to put his creation into mass production. AAnd although its design means that it will be more complicated to manufacture and, in turn, more expensive than standard drywall screws to buy, in the long run, it should be a more economical alternative to other soundproofing methods, especially with regard to their ease of installation. If you know how to use a drill or a screwdriver, you already have all the expertise you need.