WallDamp™

Structural Damping Material for Wood/Metal Frame Construction

WallDamp

WallDamp takes all the mystery out of soundproofing walls. It is a double sided, self adhesive sheet of material and its two step application is simple and quick. Just remove the release paper and place WallDamp between every joint, every connection in your wall. The pressure sensitive adhesive of WallDamp glues the wall together and that improves its overall structural integrity but more important is the polymer compound of the WallDamp sheet itself.

WallDamp's benefits include superior structural damping, easy installation, compatibility with most existing wall systems and cost effectiveness. 

Applications

  • Listening Rooms
  • Home Theater
  • Recording Studios
  • Soundproofing

How It Works

ASC-WallDamp is a double sided, self adhesive sheet of material and it's two step application is simple and quick. Just remove the release paper and place WallDamp between every joint, every connection in your wall. The pressure sensitive adhesive of WallDamp glues the wall together and that improves it's overall structural integrity but more important is the polymer compound of the WallDamp sheet itself. WallDamp located between the wallboard and the framing members of the wall improves the soundproofing in three ways.

 

  1. Blocks the Sound Board Effect
    (conduction of sound right through the studs and wall cavity)
     
  2. Quiets Wallboard Twang
    (plate vibration of wallboard pinned between the studs)
     
  3. Eliminates Wall Shudder
    (structural vibration of the whole wall pinned between the plates)

 

Sound Board Effect blocked by WallDamp

1. Blocks the Sound Board Effect

WallDamp blocks the conduction of sound right through the studs and wall cavity (the sound board effect).

 

Wallboard Twang quieted by WallDamp

2. Quiets Wallboard Twang

WallDamp quiets the plate vibration of wallboard pinned between the studs (wallboard twang).

 

Wall Shudder eliminated by WallDamp

3. Eliminates Wall Shudder

WallDamp eliminates structural vibration of the whole wall pinned between the plates (wall shudder).

 

Benefits

Experiments

It is helpful to learn more about these three types of sounds: the transparency, the twang and the shudder. They can be easily stimulated in any wall. Try a few experiments. Have someone stand on the other side of a wall and scratch the surface, lightly with a pin. The scratching noise you hear is due to the conduction of sound through the structure of the wall. The sound starts in one sheet of wallboard, it passes into one side of the stud, through the stud, out the other side of the stud into the wallboard on your side of the wall. WallDamp placed between the wallboard and the framing greatly reduce the conduction of sound through the wall.

Here's another experiment. Make your fist and stick the middle knuckle out a bit. Now, walk slowly along a wall knocking on it and listen to the sounds. Where the sound seems dull, is where a stud is located. The sound will seem louder and more hollow at positions halfway between the studs where the wallboard is unsupported and freely vibrates. When WallDamp is sandwiched between the studs and the wallboard the hollow twang of plate vibration is damped out and the wall begins to sound more like an old, lath and plaster wall.

Finally the last experiment. Make your fist tight and notice the hard thickness at the heel of your fist. Walk along the wall and thump middle of a stud wall, about half way up with the tight heel of your fist. That low boom you hear is due to structural vibration of the whole wall. Wall shudder is caused when the upper and lower edge of the wall is pinned at the plates. The unsupported mid section of the wall is easily stimulated into a low frequency shudder. WallDamp sandwiched between the wallboard and framing damps out this whole wall motion.

ASC-WallDamp improves the soundproofing of any wall in three distinct ways with one simple application. Adding WallDamp strips between the wallboard and the framing glues the wallboard to the framing and then damps out conductive, plate and structural borne sound and vibration.

 

Installation

Here are a few examples of incorporating WallDamp with common wall constructions.

  • Single Stud / Single Plate: Standard
  • Single Stud / Single Plate: One-Side Heavy
  • Single Stud / Single Plate: Two-Side Heavy
  • Double Stud / Single Plate: Standard
  • Double Stud / Single Plate: One-Side Heavy
  • Double Stud / Single Plate: Two-Side Heavy
  • Double Stud / Double Plate: Standard
  • Double Stud / Double Plate: One-Side Heavy
  • Double Stud / Double Plate: Two-Side Heavy
  • Damped Block Wall
  • Damped Existing Stud Wall

 

Technical

Fire Rating (pdf)

ASC-WallDamp is a construction material that is an add-on or upgrade to standard wall and ceiling construction projects. By locating WallDamp material between the joints in a frame construction project, the rooms in the building take on that solid feeling of lath-and-plaster. With WallDamp in place, any vibration or sonic energy that finds itself inside the walls of the building is quickly removed, before it can be heard. This means that lightweight, cost effective stick frame and gypsum board walls can now provide the performance of much more expensive and heavy construction methods. Another important feature is that the WallDamp construction method uses standard construction materials and practices with the simple addition of a thin sheet of damping material that is slipped into every joint possible.

  • What is WallDamp?
  • WallDamp Construction Method
  • How Does WallDamp Actually Work?
  • How Does WallDamp Extract Energy From the Walls?
  • Engineering Report - WallDamp in Sheer Walls

Prices

To estimate how much WallDamp you will require use these tools:

 

SoundProofing and Sound Conditioning

WallDamp Squares 4″ x 4″ x 1/20″ (25 per bundle) $34
WallDamp Strips 1.5″ x 48″ x 1/20″ (100 lf per bundle) $126
WallDamp Strips 1″ x 48″ x 1/20″ (100 lf per bundle) $105