Chapter 4: Installation

How Do You Install New Wall Soundproofing?

New walls are a good place to start with soundproofing because they are like a blank canvas. It is easier to install soundproofing material with a new wall because you won’t need to tear anything down or add extra layers.

 

install soundproofing materials with a new wall

Best Method for New Wall Soundproofing

The best method for soundproofing a new wall is the same for any wall — add mass. Also, consider you’ll need to soundproof both sides of the wall for maximum soundproofing. Using IsoTrax®, follow these steps for the first side of the wall:

 

1. Install Quiet Barrier® HD on the studs with 1 ¼-inch roofing nails.

2. Seal the seams of the Quiet Barrier® with Quiet Barrier® Tape.

3. Install ?-inch Type X gypsum board with 15/8-inch coarse thread drywall screws.

4. Place screws with eight to 12 inches of space between them.

5. Leave a ¼-inch gap between the gypsum board layers and adjoining surfaces.

6. Install the Quiet Batt® between the studs

 

On the other side of the wall, you’ll need to:

 

1. Install the IsoTrax® Soundproofing System on the studs.

2. Install ?-inch Type X gypsum board on the IsoTrax® with 1 ¼-inch fine thread drywall screws.

3. Place screws 12 inches apart.

4. Leave a ¼-inch gap between layers.

5. Fill the gap with OSI Pro-Series SC-175 Acoustical Sound Sealant.

6. Finish the gypsum board.

 

With IsoTrax® in your new walls, you’ll get to enjoy soundproofing peace for years to come.

 

Soundproofing Interior Walls in New Construction on a Budget

If you’re on a budget, you might opt to soundproof new walls using fewer materials. For example, you could leave out Quiet Barrier®, but still use Quiet Batt® and IsoTrax®. This would help reduce noise shared between rooms or noise in the room.

 

For decent soundproofing, you could leave out IsoTrax® and use Quiet Barrier® and Quiet Batt®. This method will help reduce minimal noise between rooms, such as people talking or low-volume music.

 

Here are some more tips to consider when soundproofing your new room:

  • Place bookshelves filled with books against shared walls for sound insulation.
  • Fill empty spaces with soft furnishings to prevent echo.
  • Hang heavy drapes at the windows.
  • Lay carpet.
  • Decorate with acoustic panels.
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