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Next, we will show how the sound barrier is cut around outlets to protect the integrity of the acoustical seal around the outlet.The putty is also protection against fires in the wall cavities. Peel the protective layer away from the putty and pack it around the outlet box. These are designed to reduce leakage around electrical outlets or other sound penetration. Next is the installation of the acoustical fire stop putty pads.Shoot a staple about every eight inches to secure the barrier to the wall.
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You will need to get enough staples into the corner to hold it, or the vinyl will tear at the staple and fall down. Shoot in a few staples to help support the material.Get the sound barrier lined up and make sure you are square at the top and right edge. Since the material weighs 1 pound per square foot, you will need two people to lift the sheet and hold it in place.After you score it, you can separate it by tearing it apart. You do not have to cut entirely through the material. We typically use an 8-foot flat bar to guide the cut. Using the utility knife, cut the sound barrier to size.First, measure the length of the run you will be covering.A 1% opening in a wall loses 50% of the sound-deadening of the wall. The sound barrier material is 54 inches wide, so there will be some overlap in the upper and lower sheets. Installing a sound barrier is not tricky, but as part of an isolation project, it requires attention to detail. Stopping sound usually means absorbing it with mass