- Click here If you are looking to purchase Green Glue.
- Do you ship Green Glue world wide?
- What is Green Glue and how does it work?
- How do I apply Green Glue?
- Should I use Tubes or the Bucket?
- I added drywall and Green Glue onto my wall and I don't hear that much improvement.
- Can Green Glue be used with only one layer of drywall?
- Will I gain by applying Green Glue to the face of the joists before I hang the drywall?
- Should I use nails or screws in the application of Green Glue?
- Should I use conventional adhesive along with Green Glue?
- How thick is a layer of Green Glue?
- Can I use Green Glue in floors?
- Can I treat just the ceiling, or do I have to treat all surfaces?
- Can a high performance wall be produced with Green Glue without the use of decoupling methods such as resilient channel?
- Can Green Glue be used in conjunction with decoupling methods?
- Will Green Glue perform even better in between soundboard and drywall?
- How does Green Glue compare to other sound proofing techniques?
- Is Green Glue toxic?
- Is Green Glue a fire hazard?
- What is the cost of Green Glue?
- How much Green Glue do I need?
- When soundproofing on a budget, how can I reduce the cost of a Green Glue?
1. How can I Purchase Green Glue?
Trademark Soundproofing has a variety of Green Glue Damping Compound material to suit your needs. Our most popular is the 12- 29oz. tubes of Green Glue. Additionally we have 5 gallon buckets of Green Glue, packs of 4, 6 tubes and combo packs which are a combination of Green Glue & SilenSeal caulk. You can place your order via our secure web site or over the phone with one of our friendly associates. Don't forget to check our monthly specials!
As a preferred Green Glue dealer Trademark Soundproofing can provide significant discounts on large orders. We also sell Green Glue at wholesale pricing for qualifying distributors. Give us a call at 845-352-3200 for details.
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2. Do you Ship Green Glue World Wide?
Yes we do! All orders to the 48 States can be placed through our website and it is the same flat rate to any state. For Orders to Alaska, Hawaii and throughout the World please call our office or email us for a shipping quote.
Canadian orders can be placed with our Green Glue Distributor in Canada at 416-784-4445.
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3. What is Green Glue and how does it work?
Sound travels as a wave through the air. It is an airborne vibration. The waves hit a wall or ceiling and the energy becomes structure-borne. Unless the wall or ceiling material is damped, the vibration will travel through the building framing and exit somewhere else as sound again.
In a constrained layer damping system, sometimes referred to as CLD, a damping material is sandwiched between two other (usually stiff rigid) materials. For example, Green Glue sandwiched between two layers of drywall. Damping occurs when the viscoelastic center of the sandwich is sheared (see left).
When bent, shear forces pull and stretch on the damping material. Under these conditions, the unique polymeric construction of Green Glue very efficiently converts this mechanical energy to heat. The vibration energy is not isolated, it is dissipated and gone.
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4. How is it applied?
Green Glue comes in 29 oz. tubes or in Green Glue 5 gallon buckets. You can use a quart size caulk gun for the tubes and a bucket applicator for the buckets. It is very fast and easy to apply no special skills whatsoever are required, just caulk the Green Glue out onto the back of the drywall in any pattern you prefer using the recommended coverage. Full cases of Green Glue come with instructions in English and Spanish.
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5. Should I use Tubes or the Bucket?
A five gallon Bucket of Green Glue will cover about the same amount as two cases (24 Tubes). If you include the cost of the bucket applicator that is a saving of $30. That being the case when you are applying 600 sf or less it is best to stick with the tubes.
On larger projects the savings start to add up and it would seem like a no-brainer to go with the buckets. However our own experience and the feedback from large construction site managers has taught us that saving a few extra dollars is not always the best route to take. The problem is that filling the bucket applicator gun (as wide as you will cut the nozzle) gets tiring and drywall crews want to finish hanging sheet after sheet of drywall. Eventually instead of using 2-3 loads of Green Glue per sheet they start applying only one. The tubes are simpler and neater (the bucket applicator needs the end wiped on the edge of the bucket to avoid dripping) you just cut off the nozzles of a few cases before you begin and you use 2 caulking guns. Additionally you can check and see exactly how many tubes were used.
In conclusion on a job larger than 600 sf that you are doing yourself or you have steady meticulous workers, you can save money and use the buckets. On very large projects where you have a crew hanging your drywall you may be better off using the tubes and knowing that the job was done right.
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6. I added drywall and Green Glue onto my wall and I do not hear that much improvement.
You have to Wait 8 days before attempting to listen for improvement. When Green Glue is applied it is in a very liquidity form so the only improvement your wall/ceiling has is the added layer of drywall. Once the Green Glue starts drying and becoming elastic you begin to have the damping factor improvement. That starts at 7-8 days after application and lasts up to 45 days when you get the full benefit of the Green Glue.
I had two noisy neighbors on either side of me. Screaming baby on one side and college kids who played rap music all night on the other. As part of a larger remodeling project of my condo I had the contractor add a layer of drywall over the existing walls with Green Glue added in between. After 30 days had passed I really thought I had wasted my money however after about about 45 days I started to notice a difference and after 60 days this place was a virtual fortress. I honest to God I don't even know the neighbors are there any more. I never hear the rap music or the crying baby. Adding Green Glue was well worth the investment.
If after waiting you still do not see any substantial improvement than you may have to take a look at your building structure. E.g. one common cause is when 2 adjoining rooms share 1 attic space. Even after treating the wall in between the rooms the sound will jump the wall and come in through the ceiling. You would either have to build the wall all the way up to the attic ceiling insuring a proper acoustical seal at the top and bottom of the new wall and treating that wall with Green Glue. Another option is to treat the ceiling in the room so that the sound cannot jump the wall.
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7. Can I use Green Glue with only one layer of drywall?
No. Green Glue needs to be a constrained layer, meaning that Green Glue is sandwiched between two rigid, dense layers of building material. There is no limit to how many drywall / Green Glue layers you can utilize, and performance will improve as the # of layers goes up. You can save valuable money by using slightly less Green Glue in each damping layer if your walls are to have more than 2 layers of drywall. For floors, you can use any common materials (cement board, OSB, plywood, etc.)
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8.Will I gain by applying Green Glue to the face of the joists before I hang the drywall?
The gain is minimal being that Green Glue works best at points of resonance (that is why it performs better on walls spaced 24" apart than those spaced 16" apart) with the drywall firmly attached to the studs the Green Glues damping factor will not be as powerful. A better and cheaper alternative is to use Gasket Joist Tape. Besides for the damping properties the soundproofing tape will also add some sort of decoupling between the studs and drywall.
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9. Do I use nails or screws in conjunction with Green Glue?
We recommend the use of screws in accordance with local building codes. Screws assist with the compression of the Green Glue layer into a thin film.
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10. Should I use conventional adhesive along with Green Glue?
No. The presence of rigid, low-damping materials alongside Green Glue between layers is not desirable
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11. How thick is the Green Glue layer?
About 0.5 mm.
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12. Can Green Glue be used in floors?
Absolutely, in fact when used in floors, Green Glue yields a double benefit - it helps with both impact (footstep) noise and airborne sound, and is very effective at both. Green Glue may be used between layers of sub floor, between sub floor and tile backer board, and between thin set mortar and the surfaces below. You may be able to use 2 layers of thinner sub floor if convenient.
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13. Can I treat just the ceiling, or should all surfaces be dealt with?
If you have a situation where you want, for example, to stop sound from moving upstairs, the most logical path for the sound is through the floor/ceiling into the room above, this is called the direct path. However, sound can make its way upstairs through the walls (or even floor) as well in the form of mechanical vibration. Sound in your room vibrates the walls, this vibration makes its way up where it creates sound by vibrating the surfaces of the upstairs room. Sound making its way through these indirect paths is called flanking noise.
An analogy that is sometimes used when discussing sound isolation is that of an aquarium. If your aquarium has a hole in any of the 5 sides, then the water can spill into the floor, regardless of how tight the other 4 are. The same applies to sound.
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 duct work. Read more about how sound can travel along non-linear paths.
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14. Can GG make a high performance wall without decoupling methods such as resilient channel?
Yes, without a doubt. In fact, Green Glue has performance advantages in many applications relative to some decoupling schemes. Click here to see a third party lab test showing Green Glue achieving an STC of 52 when applied to only one side of the wall! Green Glue STC Report
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15. Can Green Glue be used in conjunction with decoupling techniques?
Yes, and better performance can be had. For walls the preferred decoupling methods are 1)double studs 2)staggered studs 3)Whisper Clips 4)resilient channel. For applications where low frequency isolation is important, resilient channel is not recommended.
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16. Will Green Glue perform even better in between drywall and soundboard?
No. Soundboard is far lighter than drywall and isn't preferable in any ceiling or wall assembly.
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17. How does Green Glue compare to other techniques?
We have same-lab, 3rd party data answering this question directly. Contact us for any copies and info.
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18. Is Green Glue toxic?
No. Green Glue is water based, non-toxic, non-carcinogenic, and very low in VOC (<5grams per liter / compliant in all 50 states and worldwide). As with all products, paints, glues, and so forth, you should use proper precautions and read the MSDS before using Green Glue. Green Glue has a mild odor, typical of latex products. This odor is not dangerous and will dissipate completely given time.
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19. Is Green Glue a fire hazard?
No. Green Glue has been fire tested, and can be utilized in fire-rated walls without affecting the rating of the wall. Click here for a copy of the Green Glue UL report
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20. How much does Green Glue cost?
About 75 cents per square foot, (.65 cents with the buckets and .85 cents using tubes) making a layer of Green Glue the most economical sound isolation product around, as well as one of the best.
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21. How much do I need?
Recommended application is 2 tubes of Green Glue per 4' x 8' area - 2 tubes per standard sheet of drywall. If you are not on a budget, utilizing 3 tubes per sheet will improve performance. Each case of Green covers about 192 square feet when used at 2 tubes coverage, or 128 square feet if used at the 3 tubes coverage rate. Do not use more than 3 tubes per 4' x 8' sheet as performance will actually decline above 3 tubes per sheet.
Use the Green Glue Square Footage Calculator
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22. I need to soundproof on a budget, how can I reduce the cost of a Green Glue room?
Wonderfully, Green Glue performs at an only slightly lower level if you use it at 1.5 or even 1 tube per sheet instead of the recommended 2. about 70% of the raw damping performance is retained when using 1 tube per sheet. In fact, Green Glue can improve performance if used at even less than 1 tube per sheet.
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