Let’s try to keep it quiet!

March 30, 2010

How to Soundproof a Wall

Filed under: — admin @ 8:19 am

Over the past few weeks we’ve been taking a close look at how to soundproof specific parts of a room. Now that you know how to soundproof a floor or ceiling, we will move on to the easiest part of the room – the walls.

You basically have three options when it comes to soundproofing a wall.

The first option, if you’ve gutted the walls or are working with a new construction, is to install fiberglass between the studs within the walls. After the fiberglass is installed you’ll install whisper clips on the studs, upon which you’ve already applied gasket tape to prevent rubbing in the future. The top clips must be within 6 inches of the ceiling and the bottom clips must be within 3 inches of the floor – more space than that will be detrimental to your success. Your whisper clips must be on the outermost studs of each row – at both the beginning and the end.

After the whisper clips are installed you’ll need to run your hat channel, just as you did when you were soundproofing the ceiling. Attach your drywall by screwing it to the channels. Use acoustical caulk to seal around all of the seams and don’t forget to include the edges of the electrical outlets.

You do not need to use whisper clips or hat channels to soundproof a room – especially if you’re on a budget. You could, if you prefer, simply attach your first layer of drywall to the studs, apply a layer of Green Glue, attach your second layer of drywall, seal the seams with caulk, and call it a day.

Your third option, for ultimate soundproofing, is to combine both techniques. Apply the whisper clips to the studs, create your hat channels, and attach your first layer of drywall. Then pick up your project by applying the next layer of Green Glue and the second layer of drywall. Seal the seams with acoustical caulk as before, spackle the walls, paint, and you’re done.

The technique you choose to use is up to you. They all work, but some are better for more difficult sound problems than others. Good luck!

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