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1.

Where can I buy any of the Green Glue products ?

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We exclusively sell Green Glue products through distribution.

All of the Green Glue Noiseproofing System can be purchased from a network of local and online distributors, who can be found by using our Distributor Locator at the top-center of our homepage or following these links:

For the United States and Canada:  http://www.greengluecompany.com/distributors

For other countries: http://www.greengluecompany.com/distributors/international

If there is not a distributor in your specific area please select the nearest location on the distribution list.

2.

How much area will Green Glue Products cover ?

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Each case of our Green Glue Noiseproofing Compound contains 12 tubes and covers approximately 192 sq. ft. at the recommended 2 tubes per 4’ x 8’ (3 m²) sheet coverage. Each 5-gallon pail of Compound covers approximately 365 sq. ft. ( 33.9 m²), or approximately 22 tubes worth of product. 

Each tube of our Noiseproofing Sealant, used to prevent sound flanking, typically provides 40-80 linear feet ( 12-24 m) of coverage, depending on the size of the hole cut in the nozzle. In many cases, you will only need a tube or two to complete a project. A good rule of thumb is a 6:1 ratio. If your project requires six cases of Green Glue Noiseproofing Compound, you’ll probably need one full case of Noiseproofing Sealant to seal around the perimeter of the room.

Our Website has a tool to help estimate the surface area at: http://www.greengluecompany.com/products

3.

Where are Green Glue Products used ?

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Noiseproofing Compound

Green Glue Noiseproofing Compound is used between two layers of building materials – typically drywall, OSB, MDF, cement board, or plywood. So long as two of the layers are rigid (for example, being applied between a layer of drywall and soundboard is not a good application), the Noiseproofing Compound will perform well.

Green Glue Noiseproofing Compound should not be used between one or two soft layers – i.e. between a carpet pad and plywood or to fill any cavities, such as inside a wall for insulating purposes.

We do not recommend using the Green Glue Noiseproofing Compound on exterior applications as it is effective only at room temperature range (approximately 65-85°F / 18-29°C). Exteriors are often subject to temperature fluctuations which are below and above this range. Please note: if the Noiseproofing Compound is subjected to temperatures outside of this range, including during transport, it will return to regular performance once it has warmed/cooled to the 65-85°F (18-29°C). range. Green Glue Noiseproofing Compound is freeze and thaw stable.

Noiseproofing Sealant

Green Glue Noiseproofing Sealant is used to fill gaps and joints where the wall meets the floor or ceiling, and where two walls meet. It can also be used around outlet and switch boxes. It is not intended for exterior applications.

Why use Sealant? Let’s use the analogy of a fish tank. If there is a gap anywhere in a fish tank, the water will leak out. The same is true for sound escaping a room if there is a crack in the wall, the sound will escape through that crack and move into other rooms. Sealing prevents this from happening.

We do not recommend using the Green Glue Noiseproofing Sealant on exterior applications

Noiseproofing Clips

Noiseproofing Clips are excellent for dealing with mid to high frequencies and for impact noise. If you have a complaint about impact noise (aka footstep noise), the Noiseproofing Clips may be a good fit. Noiseproofing Clips must be directly installed onto a stud or joist.  Adding the Noiseproofing Clips and hat channel directly to the ceiling joists will reduce the amount of vibrations (impact noise) travelling through the stud.

Joist Tape

Green Glue Noiseproofing Joist Tape is used on floor joists to eliminate squeaks caused by the friction between the floor joist and subflooring.

4.

How much sound reduction benefit will see after using Green Glue Products ?

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Despite what other firms may tell you, the answer to this question is not cut-and-dry. In order to gauge the benefit you will see from using the Noiseproofing Compound in a project, you first need to get a better understanding of the details of that project. For example, is it a wall or floor/ceiling assembly? What kind of studs (wood vs. steel) will be used? What is the stud spacing (16” oc vs. 24” oc)? Is additional insulation being used? What type and thickness of drywall will be used?

Once you have these details, an estimate of sound reduction can be done by consulting our extensive test database to match many or all of these elements to give you a better sense of the final STC value you can expect.

There are numerous test reports and construction details shown at http://www.greengluecompany.com/test-data .  In addition our design guide at http://www.greengluecompany.com/sites/default/files/Green_Glue_Electronic_Design_Guide_0.pdf can be a valuable resource. 

Please note: while we have hundreds of tests in our database, we do not necessarily have exactly the same set-up as each and every project. However by matching similar information we are often able to provide a close approximation.

For best results, you should consider treating all the surfaces of your room. You may also have to pay attention to other sound paths, such as noise going in and out of doors, and noise making its way through ductwork.

You can learn more about how sound can travel along non-linear paths at: http://www.greengluecompany.com/benefit/how-to-use-it/flanking-noise

5.

What are the Green Glue Products and how do they work ?

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Green Glue Noiseproofing Compound is a viscoelastic damping compound that converts sound energy into a minute amount of heat. Very simply, when used between two rigid layers of material, typically drywall, the compound works to isolate the noise traveling from one room to the other.  Despite the Green Glue name, our Noiseproofing Compound is NOT a permanent adhesive.

Green Glue Noiseproofing Sealant is a polymer that is designed to remain flexible over time and to prevent sound from flanking around acoustical elements.  It is designed to be paintable help it remain hidden after your project is complete.

Green Glue Noiseproofing Clips are engineered components designed to be used with hat channel.  The system mechanically decouples one side of the wall from the other, thereby reducing the amount of sound energy travelling through the frame and allowing one side to vibrate independently from the other.

Joist Tape is a foam tape with a placement adhesive on one side and has a permanent backing that allows flooring and sub flooring to be easily positioned over the tape.  If functions by preventing the direct contact between the floor and joists that can cause squeaks.

6.

What other materials do I need to use Green Glue Products ?

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If dispensing the Green Glue Noiseproofing Compound or Sealant from tubes, you will need a standard 32-oz caulking gun (which can be found at almost any hardware or DIY store) for application. We also recommend using drop cloths when hanging drywall with the Green Glue Noiseproofing Compound as it can be difficult to clean from some surfaces.

If dispensing the Noiseproofing Compound from a 5-gallon pail, we strongly suggest purchasing a pail applicator tool from one of our distributors. Once filled, the pail applicator tool holds approximately one tube’s worth of compound, making it easy to know how much of the product you are dispensing onto each panel. Applying too little or too much onto each panel can affect the performance of your wall.

Green Glue Noiseproofing Clips work in conjunction with hat channel, which is available at most drywall yards. In addition to hat channel, you will need the appropriate screws and a screw gun to secure the clip and channel system to the studs or joists. Please see our Installation Guide and YouTube Channel for further details.

Noiseproofing Joist Tape can be applied by hand. For large and/ or recurring jobs, a joist tape applicator is available for purchase from many of our distributors.

7.

How do I use Green Glue Noiseproofing Clips ?

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Green Glue Noiseproofing Clips work to mechanically decouple one side of the wall from the other, thereby reducing the amount of sound energy travelling through the frame.

Mechanically separating two sides of a wall can improve sound isolation by allowing one side to vibrate independently from the other.

Noiseproofing Clips are excellent for dealing with mid to high frequencies and for impact noise. If you have a complaint about impact noise (aka footstep noise), the Noiseproofing Clips may be a good fit.

Adding the Noiseproofing Clips and hat channel directly to the ceiling joists will reduce the amount of vibrations (impact noise) travelling through the stud.

Meanwhile, ensuring that there is insulation in the cavity, together with Green Glue Noiseproofing Compound and a second layer of drywall, will further reduce the sound energy (impact and airborne noise) traveling through the floor/ceiling assembly.

When installed with hat channel the clip assemblies will typically extend around 1-3/4” (4.5 cm) from the stud or joist.

Please note: Noiseproofing Clips cannot be installed over existing drywall as doing so will cause a Triple Leaf Effect.
Please see our Noiseproofing Clip Installation Guide for specific recommendations on how to install the Noiseproofing Clips.

You can also view a video guide to installing the Noiseproofing Clips on our YouTube Channel, www.youtube.com/greengluecompany or a printable guide at: http://www.greengluecompany.com/sites/default/files/NoiseproofingClip%20Installation%20Guide_0.pdf

8.

How do I use Green Glue Noiseproofing Compound ?

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Green Glue Noiseproofing Compound is used between two layers of building materials – typically drywall, OSB, MDF, cement board, or plywood. So long as two of the layers are rigid (for example, being applied between a layer of drywall and soundboard is not a good application) and one of these layers is porous, the Noiseproofing Compound will perform well.

As mass plays such an important role in soundproofing, we always recommend using the thickest layer of drywall available, which is typically 5/8” (1.6cm). If you want to use a thinner panel, a ½” (1.3cm) sheet will still perform well, although not to the same standard as a 5/8” (1.6cm) sheet. Anything thinner is not advisable. The same rules apply to other building materials such as plywood and OSB.

Green Glue Noiseproofing Compound does not need to be applied in any specific pattern. The general recommendation is to apply the Compound in a random pattern all over the board, leaving a 2”-3” (5-7.5cm) border around the outside of the panel to allow for handling.   The recommended amount is to use two tubes are used per 4ft by 8ft sheet (3 m²).

Despite the Green Glue name, our Noiseproofing Compound is NOT a permanent adhesive and therefore the second layer of drywall still needs to be fastened to the studs per local building codes. We do not want panels falling off walls and ceilings!

Please note: We always recommend following local building codes regarding the types of nails or screws to use in securing layers of drywall or other building material.

Once applied to a panel, the Noiseproofing Compound begins to cure within 15 minutes. So it is important to hang the panel promptly. Once the panel has been hung and secured in place, the Noiseproofing Compound will begin curing and will reach peak performance within 30 days.

This is important: if you have just applied the Green Glue Noiseproofing Compound and drywall and are not hearing a perceivable increase in performance, please do allow 30 days and then evaluate the change.

To seal the sound from going around, flanking, your treated wall we recommend using Green Glue Noiseproofing sealant

9.

How do I use Green Glue joist tape ?

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Green Glue Noiseproofing Joist tape is applied directly to the top of the floor joists with the adhesive side down. 

The Noiseproofing Joist Tape can be applied by hand for medium to small jobs. 

For large and recurring jobs, a joist tape applicator is available for purchase from many of our distributors.

The Noiseproofing Joist Tape is sold in widths to fit standard joist sizes: 1-7/16”, 2-1/4”, and 3”, and are 1/8” thick and 100 feet in length ( 3.6, 5.7 and 7.6cm and 30m in length).

10.

How do I use Green Glue Noiseproofing Sealant ?

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We recommend leaving a 3/8” (0.9cm ) gap around the perimeter of your wall or ceiling drywall to fill with Noiseproofing Sealant.

We do not suggest sealing gaps of 5/8” or more with the Sealant as it will not cure properly in large gaps. 

Instead, for excessively large gaps deeper than an inch consider using backer rod to fill the gap before applying Sealant

We recommend that you allow the Green Glue Noiseproofing Sealant to dry for 48 hours before finishing or painting.

The sealant is only intended to be an acoustical seal; it is not intended to be a water seal or to be used in exterior applications.

11.

What is the shelf life of Green Glue Products ?

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The shelf life of our Green Glue Noiseproofing Compound and Sealant is one year from the date of manufacture.

However, if stored properly (at room temperature) it will keep for much longer.

If you are unsure whether the compound is still good, open a tube and begin dispensing – if the product flows out like ketchup, it’s fine; if it is clumpy and shows signs of curing, throw it away and purchase new product.

12.

What Fire or UL Certifications do Green Glue Products have ?

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Green Glue Noiseproofing Compound and Sealant has been fire tested for use in several varying wall assemblies.

If you would like information on these assemblies, please see below:

Navigate to www.ul.com  Scroll down under "Resources" and click on the "Online Certifications Directory",

or as a shortcut go to http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.html , fill in blank field "UL File Number" with R26312 and click on the search button. 

Fire testing for the Noiseproofing Compound and Sealant is provided.

13.

What Environmental or LEED Certifications do Green Glue Products have ?

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UL Environment has certified Green Glue Noiseproofing Compound and Sealant as follows:

No formaldehyde emissions detected - meets requirements of CA Section 01350 Mold-resistant per ASTM D3273 ULE Certification documents can be found in our Technical Library.

Additionally, UL Environment has certified Green Glue Noiseproofing Sealant as follows: 

Meets VOC Content Limits per SCAQMD Rule 1168.  ULE Certification documents can be found in our Test Data Library.

Green Glue Noiseproofing Compound and Sealant tubes are made of recyclable materials (which can contribute toward LEED Credits); unfortunately the tubes themselves are not recyclable.

For other information on LEED credits please see our information sheet at:
http://www.greengluecompany.com/content/noiseproofing-system-leed-audit-1

14.

What color is the Green Glue Noiseproofing Compound and Sealant ?

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Green Glue Noiseproofing Compound is green color, the Sealant is white.

15.

I am dealing with impact noise from above, will adding another layer of drywall and Noiseproofing Compound fix my problem ?

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First, please note that we are talking about the issue of impact noise.

If the ceiling cavity is insulated and there are resilient channels, ceiling hangers, or sound isolating clips and channels attached to the ceiling joists, then adding another layer of drywall with the Green Glue Noiseproofing Compound will offer a benefit in terms of both impact and airborne noise.

However, if there isn’t any decoupling mechanism between the joists and the first layer of drywall, simply adding Green Glue Noiseproofing Compound and another layer of drywall may not effectively treat the impact noise.

Assuming there is insulation in the cavity, our first suggestion would be to treat the floor above and, if that is not possible, treat the ceiling below by removing the existing drywall and installing the Green Glue Noiseproofing Clips and hat channel along with drywall.

For best performance, use the Noiseproofing Clips and channel with the Green Glue Noiseproofing Compound and another layer of drywall.

16.

Can I use Green Glue on Popcorn ceilings ?

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You can use Green Glue Noiseproofing Compound over a popcorn ceiling, so long as the texture is not too severe.  If the depth of the “popcorn” is more than 1/16” (0.16cm), we suggest removing the texture (by sanding, steaming, or adding a base layer of drywall over the popcorn ceiling) and then applying the Green Glue Noiseproofing Compound and an additional layer of drywall over the top.

17.

Can I use Green Glue on textured walls ?

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For Textured Walls the texture should not allow wall to wall contact, or be more than 0.5mm in height.

18.

Can I use Green Glue on studs or joists ?

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We do not recommend using the Green Glue Noiseproofing Compound on the studs or joists. Green Glue must be used between two rigid layers to be effective and, as such, you will not achieve any measurable benefits by using the compound in this manner.

19.

How can I clean Green Glue from a surface or clothes ?

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Proper measures always should be taken to ensure that the Green Glue Noiseproofing Compound does not get onto your clothing, floors, outer layers of drywall, etc., but sometimes it does happen.

To remove compound from hands or tools: use soap & water, Goo Gone, or isopropyl alcohol (rubbing alcohol).

To remove compound from drywall: if it is still “wet” use a wet, damp cloth to wipe off. If dry, roll off with finger.

To remove from carpet: use soap & water or isopropyl alcohol (rubbing alcohol) ?

20.

Does the cavity need to be insulated ?

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In order for the Green Glue compound to work to its maximum potential we recommend that all cavities be filled with flexible insulation such as fiberglass insulation or cellulose materials.   This recommendation is also for interior walls.

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