METRO SUPPLY COMPANY - "A Supplier of Mechanical and Acoustical Insulation Products"

NEW JERSEY:
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(973)-237-1551


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GREEN GLUE NOISEPROOFING COMPOUND WALL STC RATINGS

Below are some basic wall assemblies that show the advantages of adding Green Glue Noiseproofing Compound between layers of drywall. We will use the STC rating as a simple measurement of how well the structure stops sound transmission:

Standard Wall Construction: STC 40

*Wood Stud with 5/8" drywall on both sides with R-13 Insulation

Wood Stud 5/8 Inch

Green Glue Applied to 1 Side: STC 52

*Wood Stud with 5/8" drywall on both sides with R-13 Insulation.  2 tubes of Green Glue used between two layers of drywall on one side.

+ STC 12

Wood Stud with 5/8 Drywall

Double 5/8" Drywall Assembly: STC 45

*Wood Stud with 5/8" drywall (double layer) on both sides with R-13 Insulation.

Two Tubes of Green Glue

Double 5/8" Drywall with Green Glue on both sides: STC 56

*Wood Stud with 5/8" drywall on both sides with R-13 Insulation.  2 tubes of Green Glue used between two layers of drywall on both sides.

+ STC 11

Double 5/8 Inch Drywall


WHAT IS SOUND TRANSMISSION CLASS?

When considering noiseproofing materials, you’ll likely come across a rating system called STC, which stands for Sound Transmission Class. The STC rating system is the most commonly recognized sound isolation standard in North America, and is heavily used by marketers for promoting soundproofing products. The problem is that the standard is outdated and not always very useful, and the ratings don’t tell you much about how effectively a material works.

Impact or Airborne Sound

The STC standard dates back to 1961 and ranks walls over the frequency range of 125 to 4,000 Hz. And that’s the main problem—the standard doesn’t consider noise below 125 Hz. If you’re looking for a sound isolation solution, chances are it involves low frequency noise. Most of the sonic energy generated by the average home theater, for example, falls below 125 Hz. So does a lot of noise from traffic, airplanes, music, and machinery. The STC standard is not useful for calculating noise isolation for applications at these frequencies.

The STC calculations also assume that noise generally has an even energy dispersion. But this is not how noise behaves in most real-world situations. For these reasons consumers are often better off relying on more modern rating systems such as the Outdoor–Indoor Transmission Class (OITC), which considers frequencies down to 80 Hz.

Customers question how just one layer of Green Glue Noiseproofing Compound dissipates sound so effectively.  To properly comprehend the science behind the compound you need to understand a little about the energy of sound waves and how they travel. 

Sound travels through the air like a wave or an airborne vibration.  When these soundwaves hit a ceiling or wall, the vibrations will pass through the structure and exit through the other side as sound again.  If the structure is damped (with GreenGlue Comound) this will not happen.

Green Glue Noiseproofing Compound has a unique polymeric formula that converts the mechanical energy from sound waves into small amounts of heat.  When the compound is sandwiched between two rigid layers of material (like drywall), it forms a damping system.  So, when sound waves pass through the structure, the energy is dissipated in the form of heat.

The result is dramatic!  Just one layer of Green Glue Noiseproofing Compound in between two sheets of drywall can eliminate up to 90 percent of noise, even at low frequencies.   The diagram above illustrates how this damping system works to convert sound energy into heat and provide efficient noise-proofing.

STC Ratings




Tubes

SKU# 98GGTUBE
Case = Covers 192 sf (2 tubes/sheet)

MSRP: $202 /CASE
OUR PRICE: GET A QUOTE NOW*

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Green Glue

SKU# 98GGPAIL
Pail = Covers 365 sf (2 tubes/sheet)

MSRP: $295 / PAIL
OUR PRICE: GET A QUOTE NOW*

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*OUR PRICES ARE TOO LOW TO DISPLAY ONLINE DUE TO THE MINIMUM ADVERTISING POLICY (MAP)


GREEN GLUE NOISEPROOFING PRODUCTS:

The Green Glue Noiseproofing Compound is a revolutionary damping product that is ideal for new construction and rennovation projects. It is one of the most popular and cost-effective soundproofing materials in the market.

Tubes

Noiseproofing Compound has a unique polymeric formula that converts the mechanical energy of sound waves into small amounts of heat.

Noiseproofing Compound in Tubes
Noiseproofing Compound in Pails
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Sealant

Acoustical Sealant is a non-curing and non-hardening latex sealant that is used to acoustically seal walls, ceilings, and floor structures.

Acoustical Sealant
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   Green Glue Acoustical Sealant Arrow
   Green Glue Whisper Clips Arrow
   Green Glue Joist Tape Arrow
 

Green Glue Nooiseproof Your Life

Green Glue Soundproofing System Accessories:

Whisper Clips

Green Glue Whisper Clips are used to mechanically isolate two sides of a wall to prevent sound vibrations from passing through the wall/ceiling.  These clips are used in conjunction with resilient hat channel.

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Joist Tape

Green Glue Joist Tape is a pvc foam tape that is used on joists prior to installation of the subfloor to prevent floor squeaks and footnoise.
Widths: 1-7/16", 2-1/4", 3"
Length: 100 ft/roll
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