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Soundproofing a Wall

Whether you want to reduce noise pollution or create a "theater-like" experience in a media room, follow these steps to soundproof walls in your home.
Excerpted from Do It Yourself Home Improvement

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What You Need to Know:

The principles for soundproofing ceilings and floors from below can also be applied to walls. For example, you can fit hat channels directly to the surface of an existing wall. If losing a little space in the room is not a problem, build a completely new, independent wall in front of the existing structure. This is most easily done with a metal stud wall as it is quick and creates little mess. Build it 1 inch away from the original wall. You can then insert acoustic bat between the stud uprights to create a soundproof layer.

Using Hat Channels

Make sure that the open side of the ground-level channel is facing upward. In the others it should face downward.

Courtesy of © 2007 Dorling Kindersley Limited

Increasing Mass

Adding to the mass of a stud wall will help it to absorb sound. Adding blanket insulation will also improve its thermal insulation.

Courtesy of © 2007 Dorling Kindersley Limited

Adding an Independent Wall

When creating a metal stud wall, make sure that the acoustic bat is rigid enough to remain vertical between the metal studs.

Courtesy of © 2007 Dorling Kindersley Limited

Doors and Windows

  • Double glazing windows or glass doors improves sound insulation, as well as thermal insulation.

  • If noise from outside is a major problem, consider triple glazing.

  • Weatherstripping added around doors and windows will insulate them against sound as well as heat loss.

Excerpted from Do It Yourself Home Improvement

© Dorling Kindersley Limited 2009