Office Sound Control
Similar to sound proofing in a strip mall. This will be an interesting article for anyone wishing to that they had more control over controlling the sound in their workplace. In order to properly achieve soundproofing results we need to first understand one basic principle as to how sound travels. Sound travels through vibration also known as waves. Air molecules vibrate the molecule next to them which in turn vibrates the molecule next to them. When a sound wave hits a solid object lets use drywall as an example, the drywall will actually vibrate and cause the air on the second side to continue its sound wave pattern. Therefore in order to stop the sound we can either make that solid object heavier i.e. add more layers of drywall, or find a way to stop the drywall from vibrating. Fortunately there is a great new sound control product on the market called green glue damping compound. As its name implies it damps vibrations and also quickly dissipates sound waves by converting them to energy.
Although pretty recent on the market only about 5 years it has quickly become a best seller with millions of square feet sold with great results. Green Glue is cheap compared to other sound control products e.g. mass loaded vinyl. Green Glue will only work when installed between two solid layers which in most practical purposes means using 2 layers of drywall. This will give you the advantage of also adding mass to your wall. If you wanted to add mass only to your wall and try to achieve the same results as you get when using the Green Glue you would need to add about 7 layers of drywall.
A very common mistake that happens is that offices are built with drop ceilings. The walls separating the offices sometimes only reach the drop ceiling area with nothing separating the offices above that. This may lead to a very frustrated client saying that they treated the walls with the soundproofing materials suggested and they can still follow normal speech being spoken in the next office. This cannot be overstated, “the walls must be closed and SEALED up to the roof deck”. Sealed we mean with a proper acoustical caulk.