Soundproof Drywall

Do you need soundproof drywall? Or a contractor to install them? There are several products that have different application methods and advantages. It all depends on your project. It also depends on your budget. As you will see, some of the products are more expensive than others. What are these products?

Resilient Channel. Lets start with one of the basics. Commonly known as RC-1 Channel. We will refer to it as RC from here on out. RC is going to be one of your least expensive soundproofing options. It is a small, thin metal channel designed to substantially improve the soundproofing of drywall, in walls and ceilings. The RC isolates the drywall from the framing, reducing ‘direct contact’ to help dissipate sound which would normally be directly transferred through the framing. The channels measure about 1/2″ in thickness and the wide flange (where you attach the drywall) is about a 1 1/4″ wide. This application is great for ceilings or walls where you can add an extra 1/2" in thickness. It has a STC rating around 45 (depending on the application). Out of all the soundproof drywall options, RC is the least expensive.

Sound Board. This option is more expensive than RC. It is a fiberboard that deadens sound. It is 1/2" thick (the same as RC) and it is applied prior to the drywall (same as RC). It has a STC rating around 39 (depending on the application). Out of all the soundproof drywall options, sound board is middle of the road in expense.

Green Glue. This option is more expensive than sound board or RC. The product comes in tubes that you apply with a standard caulk gun. The great thing about green glue is that you can apply it with multiple layers of drywall. Each time you apply it, the STC rating goes up. This product is expensive compared to sound board or RC. But you can get higher STC ratings than the other two products. If you have a remodel where you want to apply a 2nd layer of drywall over your existing walls, you can get good STC ratings. Out of all the soundproof drywall drywall options, Green Glue is at the high end in terms of expense.

Quietrock. This option also is more expensive than sound board or RC. It is a engineered piece of drywall with a special sound absorbent core. It comes in various thicknesses. You can get it in 1/2" or 5/8", fire-rated and non-fire-rated. The STC ratings start out around 47. Just like Green Glue, you can apply Quietrock over existing drywall and dramatically improve the STC rating. Out of all the soundproof drywall drywall options, Quietrock is at the high end in terms of expense.

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